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any good demonstrations of newton's laws? it has to be more than a 3 mins long. what will i need and what law is it explaining?

2007-01-26 13:50:26 · 3 answers · asked by =) 2 in Education & Reference Homework Help

3 answers

1) Inertia
Try using a toy car with a stuffed animal or other object sitting on top. Push the car and let it hit a book. The car will stop but the animal on top will continue going forward due to its inertia.

2) F=ma
Any object pushed or pulled will accelerate (move) in the same direction as the push or pull. Use the car again and show how it moves when you push with different amounts of energy.

3) action-reaction
Get on a skateboard or roller skates. Be facing a wall and up as close as possible to the wall. Give the wall a push forward and you will roll away from the wall backward.

2007-01-26 14:22:23 · answer #1 · answered by physandchemteach 7 · 1 0

Newton's laws are three phyiscal laws which provides a relationship between the acting on a body and force.

Examples:

First Law
A body at rest remains at rest, and a body in motion continues to move in a straight line with a constant speed unless and until an external unbalanced force acts upon it. That is, an object with no net force acting upon it has a constant velocity.

Second Law
The rate of change of momentum of a body is directly proportional to the impressed force and takes place in the direction in which the force acts. Nonrelativistically, the force acting on an object is its acceleration times its mass.

Third Law
Whenever A exerts a force on B, B is simultaneously exerting a force of the same magnitude on A, in the opposite direction.
These three laws hold for everyday macroscopic objects under everyday conditions. Together with Newton's law of universal gravitation, they are usually adequate to calculate the motion of celestial bodies. However, when applied to extremely high speeds or extremely small objects, Newton's laws break down; this was remedied by Albert Einstein's Special Theory of Relativity for high speeds and by quantum mechanics for small objects.

Just amke up a little summary about the info I gave you and start from there. Good luck =]

2007-01-26 14:52:28 · answer #2 · answered by Vin R 1 · 0 0

Have 2 people of equivalent weight on skates or skateboards, and characteristic one push the different, and diploma the gap they have been rolled faraway from one yet another. The distances could be equivalent, demonstrating that "action and reaction are equivalent and opposite."

2016-11-27 21:01:37 · answer #3 · answered by ? 4 · 0 0

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