Chapter 2 1.) Aristotle asserted that natural motion proceeds from the "nature of an object. 2.)Natural motion could be either stright up or stright down. 3.)Violent motion was imposed motion. 4.)Aristotle's statments about motion were a beginning in scientific thought. 5.)Gaileo easily demolished Aristotle's falling body hypothesis. 6.) Galileo found that a stone twice as heavy as another did not fall twice as fast. 7.) Aristotle was an astute observer of nature. 8.) Issac Newton was born 1642. 9.) The tendency of things to to resist changes in motion was what Galileo called inertia. 10.) By the time Newton turned 23 he developed his famous laws of motion.
Chapter 3 1.) The concepts of motion are speed, velocity, and acceleration. 2.) Everything moves, even things that appear to be at rest. 3.) Galilo is credited with being the first to measure speed by considering the distance covered and the time it takes. 4.) Average speed= total distance covered divided by time interval. 5.) Constant velocitymeans both constant speed and constant direction. 6.) If the direction is changing than the velocity is not constant. 7.) The term acceleration applies to decreases as well as to increase in velocity. 8.) Acceleration is defined as the rate at which velocity changes. 9.) Velocity acquired= accerleration multiplied by time. 10.) Galileo found that the distance a uniformly accelerating object travels is proportional to the square of the time.
chapter 2 -In Aristotles view every object in the universe has a proper place determined by "nature". -Natural motion could be straight up or down. -Circular motion has no beginning or end. -Galileo found that a stone twice as heavy as another did not fall twice as fast. -An object continues to do whatever it happens to be doing unless a force is exerted upon it. -If object is moving it continues to move with out turning or changing its speed. -Changes in motion are produced by a force or combination. -Aristotles idea was completely turned around by Galileo who stated that in the absence of a force, a moving object will continue moving. -Galileo is said to have dropped objects of various weights from the top of leaning tower of pisa and to have compared their falls. -Object requires push or pull to keep it moving. CHAPTER 3 -Everything moves even things that appear to be at rest. -The speed is the instantaneous speed. -When we know the speed and direction of object we know its velocity. -Something with constant speed doesn't speed up or slow down. -Constant direction is a straight line, the objects path doesn't curve. -Free fall is when the objects fall under the gravity alone. -Ball rolling down inclined plane picks up the same amount of speed, ball rolls with unchanging acceleration. -How far an object falls is different from how fast it falls -Rate of a rate makes acceleration so complex. -The rate at which the velocity changes each second is the same.
Ch.2 -Aristotle asserted that natural motion proceeds from the nature of an object, dependent on what combination of the four elements (earth, water, air, and fire.) -Corpernicus beleived the Earth circled the sun. -Galileo thought the tendency of things to resist changes in motion was called inertia. -Newton used Galileo's idea and made it his first law, Law of Inertia. -Force is a push or a pull. -Mechanical equilibrium is when the net force on something is zero. -Equilibrium rule is the balancing of rocks, or objects in your room. -After Aristotle's death, his notebooks were preserved in caves near his home. -Aristotle divided motion into two:natural motion and violent motion. -A book lying at rest on a table is in equilibrium.
Ch.3 -While reading, we are moving about 107,000 kilometers per hour relative to the sun. -Galileo is the first to be credited for measuring speed by considering the distance covered and the time it takes. -A speed at any instant is instantaneous speed. -We experiance deceleration when the driver of a car applies the brakes and we lurch forward. -Free fall is when a falling object is free of all restraints and falls under the influence of gravity alone. -We use the letter "g" to represent acceleration because acceleration is due to gravity. -Galio found the distance of a uniformly accelerating object travels proportionaly to the square of its time. -Air resistance is responsible for a paper to fall more slowly to the ground when it is drop at the same time as a book. -An object thrown straight up, its speed is zero when its changing its direction of motion from upward to downward. -During the upward part of this motion, the object slows at the rate of 10 meters per second.
Chapter 2 1 Aristotle divided motion into two main classes, natural motion, and violent motion. 2 natural motion goes up down and circular like all thins on the earth. 3 violent motion is when something pushed or puled or a heavy object is picked up.
-Aristotle divided motion into two main classes; natural & violent. -Nicolaus Copernicus formulated his theory of the moving earth. -It was Galileo, the foremost scientist of the early seventeenth century. -The upward support is as much as the downward gravitational force. -Force is a push or pull. -When you push on the crate is as the foce of fiction between the crate and the floor, the net force on the crate is zero it slides at an unchanging speed. -When you flip a coin in a high-speed aiplane it behaves as if the airplain were at rest. The coin keeps up with you-inertia in action. -Inertia: the property of things ro resist changes in motion. -Everything not under going changes in motion is in mechanical equilibium, that's because EF= 0 -Changes in forces are produced by a force of combination.
CHAPTER 3
-To find speed you take distance and divide it by the time. -The speed of an object and a specification pf its direction of motion is velocity. -Motion is relative because even things that appear to be at rest they move. -Galileo is credited with being th first to measure speed by considering the distance covered and the time it takes. -A speedometer geves readings in both miles per hour and kilometers per hour. -Constant velocity means steady speed. -Acceleration applies to decreases as well as to increases in velocity. -Motions that involve three concepts: speed, velocity, and acceleraton. -What makes acceleration so complex is that it is a rate of a rate. -Free fall motion under te influence of gravity only.
Chapter 2 1. Aristotle dicided motion into 2 main classes: natural motion and violent motion. 2. Aristotle taught that all motions are due to nature of the moving object or sustained push or pull. 3. Galileo demolished aristotles falling body hypothesis. He dropped objects of various weights from the top of the leaning tower of pisa and compared them. 4.Tendency of things to resist changes in morion is what Galileo called inertia. 5. Newtons girst law- every object continues in its state of rest or of unform motion in a straight line, unless it is compelled to change that state by farces impressed upon it. 6. If you tie a string around a 2 pound bag of sugar and hang it on a weighing scale, a spring in the scale stretched until the scale reads 2 pounds. "Stretching Force" 7. Natural motion could be straight up or down. 8. E stands for "The Vectors Sum of" 9. F stands for "Forces" 10. Equilibrium rule: For any object or system of objects in equilibrium, the sum of forces acting equals zero.
Chapter 3 1. Speed- How fast something moves; the distance the distance traveled per unit of time. 2. Velocity- The speed of an objece and a specification of its direction of motion. 3. Everything moves, even things that appear to be at rest. They move relative to the Sun and Stars. 4. Galileo is the first to measure speed by considering the distance covered and the time it takes. Speed as the distance covered per unit of timem. 5. Something with constant speed does not speed up or slow down. 6. Constant velocity means constant speed and direction. Constant direction is a straight line. 7. How quickly velocity changes is acceleration. 8. Distinguish speed and velocity and define acceleration as the rate at which velocity changes both speed and direction. 9. With inclined planes, Galileo found that the distance a uniformly acceleration object traveles is porportional to the square of the time. 10. Free fall is montion under influence of gravity only.
Chapter 2- 1)Aristotle divided motion into two main categories, natural and violent motion. 2)Natural motions depended on the four elements: earth, wind, fire, water. 3)Violent motions resulted from push or pull factors. 4)Copernicus came up with the theory of the moving Earth. 5)Galileo found that a stone twice the size of another did not fall faster but at the same speed. 6)Galileo came up with the concept of inertia 7)Newton came up with the law of inertia, which states"Every object in its state of rest, or of uniform motion in a straight line,unless it is compelled to change by forces impressed upon it". 8)Forces is a simple push or pull. 9)The equilibrium rule provides reason for objects at rest. 10)Copernicus finally announced his theory of the moving Earth in the sixteenth century.
Chapter 3-
1)Everything moves, even thats that appear to be resting. 2)Speed=distance/time 3)When we know the speed and direction we can figure out the velocity. 4)Constant velocity is when velocity is steady. 5)A speedometer gives reading on both miles per hour and kilometers per hour 6)acceleration is to speed up. 7)Deceleration is to slow down. 8)Velocity is often confused with acceleration. 9)Acceleration=change in velocity/time. 10)Free fall motion is only under the influence of gravity.
Chapter 2 -Aristotle divided motion into two main classes; natural motion and violent motion. -For the small effect of air resistance he found that objects of various weights, when released at the same time, fell together and hit the ground at the same time. -On a lesser slope, it loses its speed more slowly and rolls for a longer time. -Every object continues in its state of rest, or of uniform motion in a strenght line, unless it's compelled to change that state by forces impressed upon it. -If 10 lbs of forces is exerted to the right and 5lbs to the left, the net force is 5lbs to the right. -The symbol "E" stands for the vector sum of and "F" stands for forces. -Hence we can say that you weight is the force of gravity action on you. -The equlibrium rule provides a reasoned way to view all things at rest, -The equlibriant rule is one that allows you to see more than meets the eye of the casual obsever. -Galileo and Newton, saw that all moving things follow the same rule
Chapter 3 More than 2000 years ago, the ancient Greek scientists were familiar with some of the ideas of physics that we study today. -You're moving at about 107,000 kilometers per hour relative to the sun, and you're moving even faster relative to the center of our galaxy. -Since average speed is the whole distance covered divided by the total time of travel, it doesn't indicate the different speeds and variations. -You can flip a coin and catch it exacctly as if the bus were at rest. -The ball attains its maximum acceleration when the incline is tipped verticaly. -Free-fall acceleration is opproximately equal to 10 meters per second each second, in shorthend notation, 10 m/s2. -The downward veloceties have a negative sign, indication the downward direction. -An object falls a distance of only 5 meters during the first second of fall, although it's speed is then 10 meters per second. -Acceleration is the rate at which velocity itself changes. -It took people nearly 2000 years from the time of Aristotle to reach a clear understanding of motion.
CHAPTER 2 1.That two objects with different weights can fall at the same speed. 2. The law of inertia by Newton 3. Galileo dropped objects of various weight from the top of the Leaning Tower of Pisa to test Aristotle's falling-body hypothesis. He disproved Aristotle's hypothesis. 4. When the push on the crate is as great as the fource of friction between the crate and the floor the net fource on the crate is zero and it slides at an unchanging speed. 5.When u flip a coin in a high-speed airplain, it behaves as if the airplain were at rest, the coin keeps up with you. 6.Every object continues in its state of rest or uniform motion in a straight line unless it is compelled to change that state by forces impress upon it. 7.Net fourse if you and a freind pull in the smae direction with equal forces on an object the forces combime to prodice a net force twice as great as your single fourse. 8. The motion of heavier objects such as stones at low speeds is not affected by the air. A feather and a coin fall at equal accelerations in a vacuum. 9. Newton formulated a theory of the nature of light and showed, with prisms, that white light is composed of all colors of the rainbow. 10. When Copernicus announced the idea of a moving Earth. the concept of interia was not understood.
CHAPTER 3
1. That the earth moving was based off the idea that the other planets were moving around the sun. 2. The Objects of different mass, still fall at the same rate. 3. If a object was moving, and there was no forces to stop it, it would go on forever. 4. A downward slope increases speed, a upward slope decreases speed, and no slope, has no applying forces on it. 5. Since average speed is the whole distance covered divided by the total time of travel, it doesn't indicate the different speeds and variations that may have taken place during shorter time intervals. 6. Constant velocity means both constant speed and 8. Galileo developed the concept of acceleration in his experiments on inclined planes. He discovered that when the air resistance is small enough to be neglected, all objects fall with the same unchanging acceleration. 9. Motion is relative. This means that even if an object appears to be at rest, it is not always at rest. For example, the Earth moves about 107,000 kilometers per hour relative to the Sun.constant direction. 10.How far an object moves is altogether different from how fast it gets there. Galileo found that the distance an accelerating object travels is proportional to the "Square of Time".
Chapter 2 cont. 4 galileo gave us the knowledge to the copernicus view of a moving earth 5 galileo was born the same year as shakespeare and the same year mechealangelo died. 6 Aristotled idea that a moving object must be propelled by a steady force was completely turned around by galileo 7 every object continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it. 8 changes in motion are produced by a force or combonation of forces. 9 Isaac Newton was born prematurely and barely survived, on christmas Day, 1642 the same year that galileo died 10 when the net force on something is zero we say that something is in mechanical equilibrium
chaoter 3
1 everything moves-even things that appear to be at rest. 2 Galieo is credited with being the first to measure speed by considering the distance covered and the time it takes 3 any combination of distance and time units is legitimate for measuring speed 4 constant speed means steady speed. something with constant speed deosnt speed up or slow down 5 if either the speed or the direction changes then the velocity changes 6 when a falling object is free of all restraints no friction with the air or otherwise and falls under the influence of gravity alone the object is in a state of free fall 7 galileo found that the distance a uniformily accelerating object travels is proportional to the square of the time. 8 Galileo developed the concept of acceleration in his experiments on inclined planes. 9 galileo found that a ball rolling down an inclined plane picks up the same amount of speed in succesive seconds. 10 galileo found greater accelerations for steeper inclines.
1. A theory so completley dif from dcommon opinon would surely be taken as an attack on established order, so Corpernicus' theory that the earth circled tGhe sun left him in fear of persecution. 2. For many church leaders, the idea of a moving Earth theartned not only their authority but the very foundations of faith and civilization as well. 3. Galileo is said to have dropped objects of various weights from the top of the leaning Tower of Pisa and have compared their falls. 4. If there is no interference with an object it will continue to move in one direction forever. 5.When the net force of something is zero we say that something is in mechanical equilibrium. 6. Twi ibjects of different weights can fall at the same speed. 7. Gravity is always at work. 8. Everything moves even things that appear to be at rest. 9. How far an object falls is altogether different then how fast it falls. 10. Galileo and Newton, say that all moving things follow the same rule
1.Galileo found that the distance a uniformily accelerating object travels is proportional to the square of the time. 2. Acceleration is the rate at which velocity itself changes. 3. Something with constant speed does not speed up or slow down. 4. Free fall is motion under influence of gravity. 5. When u flip a coin in a high-speed airplain, it behaves as if the airplain were at rest, the coin keeps up with you. 6. While reading, we are moving about 107,000 kilometers per hour relative to the sun. 7. Air resistance is responsible for a paper to fall more slowly to the ground when it is drop at the same time as a book. 8. We accelerate whenever we move in a curved path, even if we're moving at constant speed because our direction is changing so our velocity is changing. 9. Aristotle's views became a very formidable part of Church doctrine so to contradict Aristotle's views was to contradict the Church. 10. A quantity such as velocity that specifies direction as well as magnitude is called a Vector Quantity.
1.Aristotle divided motion into two main classes: natural motion and violent motion.
2.Aristotle asserted that natural motion proceeds from the “nature” of an object, dependent on what combination of the four elements (earth, water, air, and fire) the object contains.
3.The first copy of Nicolaus Copernicus‘s famous exposition reached him on the day he died-May 24, 1543.
4.The symbol "E" stands for the vector sum of and "F" stands for forces.
5.The equilibrium rule, ∑F=0, provides a reasoned way to view all things at rest-balancing rocks, objects in yo9ur room, or the steel beams in bridges or in building constructions.
6.Isaac Newton showed that the universe operated according to natural laws that were neither capricious nor malevolent-a knowledge that provided hope and inspiration to scientists.
7.Every object continues in its state or rest, or uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
8.Mechanical equilibrium is when the net force on something is zero.
9.Newton used Galileo's idea and made it his first law, Law of Inertia.
10.Whether at rest (static equilibrium) or steadily rolling in a straight-line path (dynamic equilibrium), ∑F=0.
Chapter 3-10 Interesting Facts
1.Everything moves-even things that appear to be at rest. They move relative to the sun and stars.
2.As I was reading this, I was moving at about 107,000 kilometers per hour relative to the Sun, and I was moving even faster relative to the center of the galaxy.
3.Things in motion often have variations in speed. The speed at any instant is the instantaneous speed.
4.Constant speed means steady speed. Something with constant speed doesn’t speed up or slow down.
5.Constant velocity means both constant speed and constant direction (straight line-never curves).
6.When we wish to specify how far something falls, we are talking about distance, which is expressed as d=½ gt².
7.Galio found the distance of a uniformly accelerating object travels proportionally to the square of its time.
8.An object thrown straight up, its speed is zero when it’s changing its direction of motion changes from upward to downward.
9.Air resistance is responsible for a paper to fall more slowly to the ground when it is dropping at the same time as a book.
10.We accelerate whenever we move in a curved path, even if we’re moving at constant speed because our direction is changing so our velocity is changing.
I am married to Dr. Brandi Lane I have one sone R.J. and another son due in febrary. His name will be Elijah Craig Lane. i grew up in Clovis, CA. I went to high school in Girard, KS. I went to colege at Coe College in Cedar Rapids, IA. I have taught in Corcoran for six years.
Chapter 2
ReplyDelete1.) Aristotle asserted that natural motion proceeds from the "nature of an object.
2.)Natural motion could be either stright up or stright down.
3.)Violent motion was imposed motion.
4.)Aristotle's statments about motion were a beginning in scientific thought.
5.)Gaileo easily demolished Aristotle's falling body hypothesis.
6.) Galileo found that a stone twice as heavy as another did not fall twice as fast.
7.) Aristotle was an astute observer of nature.
8.) Issac Newton was born 1642.
9.) The tendency of things to to resist changes in motion was what Galileo called inertia.
10.) By the time Newton turned 23 he developed his famous laws of motion.
Chapter 3
1.) The concepts of motion are speed, velocity, and acceleration.
2.) Everything moves, even things that appear to be at rest.
3.) Galilo is credited with being the first to measure speed by considering the distance covered and the time it takes.
4.) Average speed= total distance covered divided by time interval.
5.) Constant velocitymeans both constant speed and constant direction.
6.) If the direction is changing than the velocity is not constant.
7.) The term acceleration applies to decreases as well as to increase in velocity.
8.) Acceleration is defined as the rate at which velocity changes.
9.) Velocity acquired= accerleration multiplied by time.
10.) Galileo found that the distance a uniformly accelerating object travels is proportional to the square of the time.
_Vasholey Brooks
chapter 2
ReplyDelete-In Aristotles view every object in the universe has a proper place determined by "nature".
-Natural motion could be straight up or down.
-Circular motion has no beginning or end.
-Galileo found that a stone twice as heavy as another did not fall twice as fast.
-An object continues to do whatever it happens to be doing unless a force is exerted upon it.
-If object is moving it continues to move with out turning or changing its speed.
-Changes in motion are produced by a force or combination.
-Aristotles idea was completely turned around by Galileo who stated that in the absence of a force, a moving object will continue moving.
-Galileo is said to have dropped objects of various weights from the top of leaning tower of pisa and to have compared their falls.
-Object requires push or pull to keep it moving.
CHAPTER 3
-Everything moves even things that appear to be at rest.
-The speed is the instantaneous speed.
-When we know the speed and direction of object we know its velocity.
-Something with constant speed doesn't speed up or slow down.
-Constant direction is a straight line, the objects path doesn't curve.
-Free fall is when the objects fall under the gravity alone.
-Ball rolling down inclined plane picks up the same amount of speed, ball rolls with unchanging acceleration.
-How far an object falls is different from how fast it falls
-Rate of a rate makes acceleration so complex.
-The rate at which the velocity changes each second is the same.
This comment has been removed by the author.
ReplyDeleteCh.2
ReplyDelete-Aristotle asserted that natural motion proceeds from the nature of an object, dependent on what combination of the four elements (earth, water, air, and fire.)
-Corpernicus beleived the Earth circled the sun.
-Galileo thought the tendency of things to resist changes in motion was called inertia.
-Newton used Galileo's idea and made it his first law, Law of Inertia.
-Force is a push or a pull.
-Mechanical equilibrium is when the net force on something is zero.
-Equilibrium rule is the balancing of rocks, or objects in your room.
-After Aristotle's death, his notebooks were preserved in caves near his home.
-Aristotle divided motion into two:natural motion and violent motion.
-A book lying at rest on a table is in equilibrium.
Ch.3
-While reading, we are moving about 107,000 kilometers per hour relative to the sun.
-Galileo is the first to be credited for measuring speed by considering the distance covered and the time it takes.
-A speed at any instant is instantaneous speed.
-We experiance deceleration when the driver of a car applies the brakes and we lurch forward.
-Free fall is when a falling object is free of all restraints and falls under the influence of gravity alone.
-We use the letter "g" to represent acceleration because acceleration is due to gravity.
-Galio found the distance of a uniformly accelerating object travels proportionaly to the square of its time.
-Air resistance is responsible for a paper to fall more slowly to the ground when it is drop at the same time as a book.
-An object thrown straight up, its speed is zero when its changing its direction of motion from upward to downward.
-During the upward part of this motion, the object slows at the rate of 10 meters per second.
Chapter 2
ReplyDelete1 Aristotle divided motion into two main classes, natural motion, and violent motion.
2 natural motion goes up down and circular like all thins on the earth.
3 violent motion is when something pushed or puled or a heavy object is picked up.
CHAPTER 2
ReplyDelete-Aristotle divided motion into two main classes; natural & violent.
-Nicolaus Copernicus formulated his theory of the moving earth.
-It was Galileo, the foremost scientist of the early seventeenth century.
-The upward support is as much as the downward gravitational force.
-Force is a push or pull.
-When you push on the crate is as the foce of fiction between the crate and the floor, the net force on the crate is zero it slides at an unchanging speed.
-When you flip a coin in a high-speed aiplane it behaves as if the airplain were at rest. The coin keeps up with you-inertia in action.
-Inertia: the property of things ro resist changes in motion.
-Everything not under going changes in motion is in mechanical equilibium, that's because EF= 0
-Changes in forces are produced by a force of combination.
CHAPTER 3
-To find speed you take distance and divide it by the time.
-The speed of an object and a specification pf its direction of motion is velocity.
-Motion is relative because even things that appear to be at rest they move.
-Galileo is credited with being th first to measure speed by considering the distance covered and the time it takes.
-A speedometer geves readings in both miles per hour and kilometers per hour.
-Constant velocity means steady speed.
-Acceleration applies to decreases as well as to increases in velocity.
-Motions that involve three concepts: speed, velocity, and acceleraton.
-What makes acceleration so complex is that it is a rate of a rate.
-Free fall motion under te influence of gravity only.
This comment has been removed by the author.
ReplyDeleteChapter 2
ReplyDelete1. Aristotle dicided motion into 2 main classes: natural motion and violent motion.
2. Aristotle taught that all motions are due to nature of the moving object or sustained push or pull.
3. Galileo demolished aristotles falling body hypothesis. He dropped objects of various weights from the top of the leaning tower of pisa and compared them.
4.Tendency of things to resist changes in morion is what Galileo called inertia.
5. Newtons girst law- every object continues in its state of rest or of unform motion in a straight line, unless it is compelled to change that state by farces impressed upon it.
6. If you tie a string around a 2 pound bag of sugar and hang it on a weighing scale, a spring in the scale stretched until the scale reads 2 pounds. "Stretching Force"
7. Natural motion could be straight up or down.
8. E stands for "The Vectors Sum of"
9. F stands for "Forces"
10. Equilibrium rule: For any object or system of objects in equilibrium, the sum of forces acting equals zero.
Chapter 3
1. Speed- How fast something moves; the distance the distance traveled per unit of time.
2. Velocity- The speed of an objece and a specification of its direction of motion.
3. Everything moves, even things that appear to be at rest. They move relative to the Sun and Stars.
4. Galileo is the first to measure speed by considering the distance covered and the time it takes. Speed as the distance covered per unit of timem.
5. Something with constant speed does not speed up or slow down.
6. Constant velocity means constant speed and direction. Constant direction is a straight line.
7. How quickly velocity changes is acceleration.
8. Distinguish speed and velocity and define acceleration as the rate at which velocity changes both speed and direction.
9. With inclined planes, Galileo found that the distance a uniformly acceleration object traveles is porportional to the square of the time.
10. Free fall is montion under influence of gravity only.
Chapter 2-
ReplyDelete1)Aristotle divided motion into two main categories, natural and violent motion.
2)Natural motions depended on the four elements: earth, wind, fire, water.
3)Violent motions resulted from push or pull factors.
4)Copernicus came up with the theory of the moving Earth.
5)Galileo found that a stone twice the size of another did not fall faster but at the same speed.
6)Galileo came up with the concept of inertia
7)Newton came up with the law of inertia, which states"Every object in its state of rest, or of uniform motion in a straight line,unless it is compelled to change by forces impressed upon it".
8)Forces is a simple push or pull.
9)The equilibrium rule provides reason for objects at rest.
10)Copernicus finally announced his theory of the moving Earth in the sixteenth century.
Chapter 3-
1)Everything moves, even thats that appear to be resting.
2)Speed=distance/time
3)When we know the speed and direction we can figure out the velocity.
4)Constant velocity is when velocity is steady.
5)A speedometer gives reading on both miles per hour and kilometers per hour
6)acceleration is to speed up.
7)Deceleration is to slow down.
8)Velocity is often confused with acceleration.
9)Acceleration=change in velocity/time.
10)Free fall motion is only under the influence of gravity.
Chapter 2
ReplyDelete-Aristotle divided motion into two main classes; natural motion and violent motion.
-For the small effect of air resistance he found that objects of various weights, when released at the same time, fell together and hit the ground at the same time.
-On a lesser slope, it loses its speed more slowly and rolls for a longer time.
-Every object continues in its state of rest, or of uniform motion in a strenght line, unless it's compelled to change that state by forces impressed upon it.
-If 10 lbs of forces is exerted to the right and 5lbs to the left, the net force is 5lbs to the right.
-The symbol "E" stands for the vector sum of and "F" stands for forces.
-Hence we can say that you weight is the force of gravity action on you.
-The equlibrium rule provides a reasoned way to view all things at rest,
-The equlibriant rule is one that allows you to see more than meets the eye of the casual obsever.
-Galileo and Newton, saw that all moving things follow the same rule
Chapter 3
More than 2000 years ago, the ancient Greek scientists were familiar with some of the ideas of physics that we study today.
-You're moving at about 107,000 kilometers per hour relative to the sun, and you're moving even faster relative to the center of our galaxy.
-Since average speed is the whole distance covered divided by the total time of travel, it doesn't indicate the different speeds and variations.
-You can flip a coin and catch it exacctly as if the bus were at rest.
-The ball attains its maximum acceleration when the incline is tipped verticaly.
-Free-fall acceleration is opproximately equal to 10 meters per second each second, in shorthend notation, 10 m/s2.
-The downward veloceties have a negative sign, indication the downward direction.
-An object falls a distance of only 5 meters during the first second of fall, although it's speed is then 10 meters per second.
-Acceleration is the rate at which velocity itself changes.
-It took people nearly 2000 years from the time of Aristotle to reach a clear understanding of motion.
CHAPTER 2
ReplyDelete1.That two objects with different weights can fall at the same speed.
2. The law of inertia by Newton
3. Galileo dropped objects of various weight from the top of the Leaning Tower of Pisa to test Aristotle's falling-body hypothesis. He disproved Aristotle's hypothesis.
4. When the push on the crate is as great as the fource of friction between the crate and the floor the net fource on the crate is zero and it slides at an unchanging speed.
5.When u flip a coin in a high-speed airplain, it behaves as if the airplain were at rest, the coin keeps up with you.
6.Every object continues in its state of rest or uniform motion in a straight line unless it is compelled to change that state by forces impress upon it.
7.Net fourse if you and a freind pull in the smae direction with equal forces on an object the forces combime to prodice a net force twice as great as your single fourse.
8. The motion of heavier objects such as stones at low speeds is not affected by the air. A feather and a coin fall at equal accelerations in a vacuum.
9. Newton formulated a theory of the nature of light and showed, with prisms, that white light is composed of all colors of the rainbow.
10. When Copernicus announced the idea of a moving Earth. the concept of interia was not understood.
CHAPTER 3
1. That the earth moving was based off the idea that the other planets were moving around the sun.
2. The Objects of different mass, still fall at the same rate.
3. If a object was moving, and there was no forces to stop it, it would go on forever.
4. A downward slope increases speed, a upward slope decreases speed, and no slope, has no applying forces on it.
5. Since average speed is the whole distance covered divided by the total time of travel, it doesn't indicate the different speeds and variations that may have taken place during shorter time intervals.
6. Constant velocity means both constant speed and
8. Galileo developed the concept of acceleration in his experiments on inclined planes. He discovered that when the air resistance is small enough to be neglected, all objects fall with the same unchanging acceleration.
9. Motion is relative. This means that even if an object appears to be at rest, it is not always at rest. For example, the Earth moves about 107,000 kilometers per hour relative to the Sun.constant direction.
10.How far an object moves is altogether different from how fast it gets there. Galileo found that the distance an accelerating object travels is proportional to the "Square of Time".
Chapter 2 cont.
ReplyDelete4 galileo gave us the knowledge to the copernicus view of a moving earth
5 galileo was born the same year as shakespeare and the same year mechealangelo died.
6 Aristotled idea that a moving object must be propelled by a steady force was completely turned around by galileo
7 every object continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
8 changes in motion are produced by a force or combonation of forces.
9 Isaac Newton was born prematurely and barely survived, on christmas Day, 1642 the same year that galileo died
10 when the net force on something is zero we say that something is in mechanical equilibrium
chaoter 3
1 everything moves-even things that appear to be at rest.
2 Galieo is credited with being the first to measure speed by considering the distance covered and the time it takes
3 any combination of distance and time units is legitimate for measuring speed
4 constant speed means steady speed. something with constant speed deosnt speed up or slow down
5 if either the speed or the direction changes then the velocity changes
6 when a falling object is free of all restraints no friction with the air or otherwise and falls under the influence of gravity alone the object is in a state of free fall
7 galileo found that the distance a uniformily accelerating object travels is proportional to the square of the time.
8 Galileo developed the concept of acceleration in his experiments on inclined planes.
9 galileo found that a ball rolling down an inclined plane picks up the same amount of speed in succesive seconds.
10 galileo found greater accelerations for steeper inclines.
1. A theory so completley dif from dcommon opinon would surely be taken as an attack on established order, so Corpernicus' theory that the earth circled tGhe sun left him in fear of persecution.
ReplyDelete2. For many church leaders, the idea of a moving Earth theartned not only their authority but the very foundations of faith and civilization as well.
3. Galileo is said to have dropped objects of various weights from the top of the leaning Tower of Pisa and have compared their falls.
4. If there is no interference with an object it will continue to move in one direction forever.
5.When the net force of something is zero we say that something is in mechanical equilibrium.
6. Twi ibjects of different weights can fall at the same speed.
7. Gravity is always at work.
8. Everything moves even things that appear to be at rest.
9. How far an object falls is altogether different then how fast it falls.
10. Galileo and Newton, say that all moving things follow the same rule
1.Galileo found that the distance a uniformily accelerating object travels is proportional to the square of the time.
2. Acceleration is the rate at which velocity itself changes.
3. Something with constant speed does not speed up or slow down.
4. Free fall is motion under influence of gravity.
5. When u flip a coin in a high-speed airplain, it behaves as if the airplain were at rest, the coin keeps up with you.
6. While reading, we are moving about 107,000 kilometers per hour relative to the sun.
7. Air resistance is responsible for a paper to fall more slowly to the ground when it is drop at the same time as a book.
8. We accelerate whenever we move in a curved path, even if we're moving at constant speed because our direction is changing so our velocity is changing.
9. Aristotle's views became a very formidable part of Church doctrine so to contradict Aristotle's views was to contradict the Church.
10. A quantity such as velocity that specifies direction as well as magnitude is called a Vector Quantity.
Chapter 2-10 Interesting Facts
ReplyDelete1.Aristotle divided motion into two main classes: natural motion and violent motion.
2.Aristotle asserted that natural motion proceeds from the “nature” of an object, dependent on what combination of the four elements (earth, water, air, and fire) the object contains.
3.The first copy of Nicolaus Copernicus‘s famous exposition reached him on the day he died-May 24, 1543.
4.The symbol "E" stands for the vector sum of and "F" stands for forces.
5.The equilibrium rule, ∑F=0, provides a reasoned way to view all things at rest-balancing rocks, objects in yo9ur room, or the steel beams in bridges or in building constructions.
6.Isaac Newton showed that the universe operated according to natural laws that were neither capricious nor malevolent-a knowledge that provided hope and inspiration to scientists.
7.Every object continues in its state or rest, or uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
8.Mechanical equilibrium is when the net force on something is zero.
9.Newton used Galileo's idea and made it his first law, Law of Inertia.
10.Whether at rest (static equilibrium) or steadily rolling in a straight-line path (dynamic equilibrium), ∑F=0.
Chapter 3-10 Interesting Facts
1.Everything moves-even things that appear to be at rest. They move relative to the sun and stars.
2.As I was reading this, I was moving at about 107,000 kilometers per hour relative to the Sun, and I was moving even faster relative to the center of the galaxy.
3.Things in motion often have variations in speed. The speed at any instant is the instantaneous speed.
4.Constant speed means steady speed. Something with constant speed doesn’t speed up or slow down.
5.Constant velocity means both constant speed and constant direction (straight line-never curves).
6.When we wish to specify how far something falls, we are talking about distance, which is expressed as d=½ gt².
7.Galio found the distance of a uniformly accelerating object travels proportionally to the square of its time.
8.An object thrown straight up, its speed is zero when it’s changing its direction of motion changes from upward to downward.
9.Air resistance is responsible for a paper to fall more slowly to the ground when it is dropping at the same time as a book.
10.We accelerate whenever we move in a curved path, even if we’re moving at constant speed because our direction is changing so our velocity is changing.
graded to this point
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