Today September 30th we will be going over Chapter 2 Newtons 1st law. Force (F) - any push or pull on an object. -Force causes motion. (acceleration) -Force can also stop motion (acceleration) Constant Velocity =no acceleration = Balanced (no net force) Net Force- all forces acting on an object. Net force=0 Acceleration=0 Velocity is constant Units Newtons (N) Pounds (lb)
Mass(m) - amount of amatter (stuff) in an object. Bigger objects sometimes have more mass smaller objects sometimes have less mass. Units: kilograms (kg) grams (g)
Inertia (In-err-sha) -The resistance to change in motion. -Inertia depends on mass. The more mass the more Inertia. 100 kg=1X Inertia 200 kg= 2X the Inertia. 600 kg= 6X the Inertia.
*Newtons 1st Law* An object in motion will stay in motion until a net force acts on it. an object will stay at rest (V=0 m/s) until a net force acts on it.
An object at rest stays at rest -The example they used was a football at rest (not moving) Unless..... an external, unbalanced force acts on it -The football was kicked An object in motion stays in motion -At a constant speed The example they used was a boat going at a constant speed Unless.... External, unbalanced force acts on it -the external force was the wind that blew it -In a straight line An example would be an ball going in a straight path Unless.... External, unbalanced force acts on it -The external force was when someone pushes it away from its straight path
Newton's first law states this. that a object in motion will remain in motion until a outside or net force acts on it. Newton's first law also states that an object at rest will stay at rest until a outside or net force acts on it. the web site that i went to had a couple of examples but the one that made the most since to me was if a a rocket in deep space accelerates up to a speed of 2.5 km/s and turns off its engines. How far does it travel in the next second? the answer to this question is 2.5 km/s because in they is no net force to act on it and because of this it will remain in motion for ever or until a net force acts on it.
It talks about Newton's First Law of motion it gives you the defenition of the word. Also it gives you an example and the example is with a football. The football is at rest until someone kicks it. It also gives another example with a shopping car that the car is going to stay at rest until an external or unbalance force acts on it. Motion stays in motion at constant speed in a straight line unless an external or unbalance force acts on it.
On this website they define word that come from Isaac Newtons first law that every object in the state of motion tends to say in that same motion and that force is not needed to maintain motion but only to stop it also known as friction and gravity
The website i choosed explains Newton's first laws.
First, they explain who Isaac Newton is, Isaac Newtons was a scientist who lived in the 17 century. At age 23, he came up with three laws of motions that explain how stuff and why stuff move.
Newton's first law states that an object in motion will stay in motion and an object at rest will stay at rest unless an unbalanced force acts on it.
To explain this law they use a car. When a car is moving everything in it and on it is moving along at the same speed. If the car stops suddenly the objects in and on will continue moving forward. Then it shows how the stuff fall from the car because of the stop.
After, they explain that an object's forward motion will continue until a unbalance force acts on the opposite direction to stop it. The seatbelt was the force that stopped the body from moving forward.
Newton's First Law An object at rest tends to remain at rest, and an object in motion tends to remain in motion at constant velocity (with the same speed and in the same direction) unless acted upon by an unbalanced force.
They describe this law with different pictures and slide shows.
This website describes Newton's law.When you first get on this page it gives you options on which physics class to choose. I picked AP Physics.Newton's First Law of Motion: An object will not change its motion if the force acting on it are balanced. This site gives you a example of using the first law, then it explains how it got that answer and why.
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.
Today September 30th we will be going over Chapter 2 Newtons 1st law.
ReplyDeleteForce (F) - any push or pull on an object.
-Force causes motion. (acceleration)
-Force can also stop motion (acceleration)
Constant Velocity
=no acceleration
= Balanced (no net force)
Net Force- all forces acting on an object.
Net force=0
Acceleration=0
Velocity is constant
Units
Newtons (N)
Pounds (lb)
Mass(m) - amount of amatter (stuff) in an object.
Bigger objects sometimes have more mass
smaller objects sometimes have less mass.
Units: kilograms (kg)
grams (g)
Inertia (In-err-sha)
-The resistance to change in motion.
-Inertia depends on mass. The more mass the more Inertia.
100 kg=1X Inertia
200 kg= 2X the Inertia.
600 kg= 6X the Inertia.
*Newtons 1st Law*
An object in motion will stay in motion until a net force acts on it.
an object will stay at rest (V=0 m/s) until a net force acts on it.
This comment has been removed by the author.
ReplyDeletehttp://www.wisconline.org/objects/index_tj.asp?objID=TP1202
ReplyDeleteNewtons 1st law of motion
An object at rest stays at rest
-The example they used was a football at rest (not moving)
Unless..... an external, unbalanced force acts on it
-The football was kicked
An object in motion stays in motion
-At a constant speed
The example they used was a boat going at a constant speed
Unless.... External, unbalanced force acts on it
-the external force was the wind that blew it
-In a straight line
An example would be an ball going in a straight path
Unless.... External, unbalanced force acts on it
-The external force was when someone pushes it away from its straight path
http://www.dl.ket.org/Physics/Flash/Phy01-Ch05/Ch05-L02.swf
ReplyDeleteNewton's first law states this. that a object in motion will remain in motion until a outside or net force acts on it.
Newton's first law also states that an object at rest will stay at rest until a outside or net force acts on it.
the web site that i went to had a couple of examples but the one that made the most since to me was if a a rocket in deep space accelerates up to a speed of 2.5 km/s and turns off its engines. How far does it travel in the next second? the answer to this question is 2.5 km/s because in they is no net force to act on it and because of this it will remain in motion for ever or until a net force acts on it.
www.wisconline.org/objets/index_tj.asp?objiD=tp12202
ReplyDeleteIt talks about Newton's First Law of motion it gives you the defenition
of the word. Also it gives you an example and the example is with a football. The football is at rest until someone kicks it.
It also gives another example with a shopping car that the car is going to stay at rest until an external or unbalance force acts on it. Motion stays in motion at constant speed in a straight line unless an external or unbalance force acts on it.
http://library.thinkquest.org/04apr/00533/Text-Only/Newton.swf
ReplyDeleteOn this website they define word that come from Isaac Newtons first law that every object in the state of motion tends to say in that same motion and that force is not needed to maintain motion but only to stop it also known as friction and gravity
http://www.lightningphysics.com/swf_files/dynamics/usingForcesNew.swf
ReplyDeleteThis website describes Newton's law, what we want to do today is describe Newton's First Law.
When you first get on this page it gives you options on which "physics" class to choose. For my description i choose the 'college prep physics'.
By looking at this site we expect an object that move is a result of applying Newtons' Laws to the object.
Newton's First Law of Motion: An object will not change its motion if the force acting on it are balanced.
The site gives you a example using the first law, it than explains how it got that answer and why.
http://www.princess-it.com/kp9/hrh-projects/file/20060327_sammakkee/lanchang/html/Physics%20Cartoon/newton_law/newton_law.swf
ReplyDeleteThe website i choosed explains Newton's first laws.
First, they explain who Isaac Newton is, Isaac Newtons was a scientist who lived in the 17 century. At age 23, he came up with three laws of motions that explain how stuff and why stuff move.
Newton's first law states that an object in motion will stay in motion and an object at rest will stay at rest unless an unbalanced force acts on it.
To explain this law they use a car. When a car is moving everything in it and on it is moving along at the same speed. If the car stops suddenly the objects in and on will continue moving forward. Then it shows how the stuff fall from the car because of the stop.
After, they explain that an object's forward motion will continue until a unbalance force acts on the opposite direction to stop it. The seatbelt was the force that stopped the body from moving forward.
Newton's First Law
ReplyDeleteAn object at rest tends to remain at rest, and an object in motion tends to remain in motion at constant velocity (with the same speed and in the same direction) unless acted upon by an unbalanced force.
They describe this law with different pictures and slide shows.
http://www.sciencegeek.net/Physics/Presentations/NewtonsLaws/NewtonsLaws.swf
http://www.lightningphysics.com/swf_files/dynamics/usingForcesNew.swf
ReplyDeleteThis website describes Newton's law.When you first get on this page it gives you options on which physics class to choose. I picked AP Physics.Newton's First Law of Motion: An object will not change its motion if the force acting on it are balanced. This site gives you a example of using the first law, then it explains how it got that answer and why.