Newtons 3rd Law and Force Pairs

Front

What is Newton's 3rd Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What are action-reaction pairs?

Back

Forces that two objects exert on each other, which are equal in size and opposite in direction.

Front

True or False: Action-reaction pairs can cause a change in motion.

Back

True

Front

True or False: All forces occur in pairs.

Back

True

Front

What happens to action-reaction forces?

Back

They act on different objects.

Front

If a wagon has a momentum of 400 kg·m/s and a mass of 10 kg, what is its velocity?

Back

40 m/s

Front

Which of the following is NOT part of Newton's 3rd Law: Jumping off the ground, Hitting a baseball, Rain in the sky, A car sitting on the road?

Back

Rain in the sky.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity.

Front

How do you calculate momentum?

Back

Momentum (p) = mass (m) × velocity (v).

Front

What is an example of an action-reaction pair?

Back

When you push against a wall, the wall pushes back with equal force.