Newton's Laws, Friction & Momentum Flashcard

Front

What are forces that produce a nonzero net force, which changes an object's motion?

Back

Unbalanced Forces

Front

What are two forces acting in opposite directions on an object, and equal in size?

Back

Balanced Forces

Front

Which of Newton's laws states that for every action, there is an equal and opposite reaction?

Back

3rd Law of Motion

Front

What does Newton's 3rd Law of Motion demonstrate when you push your feet against the pool wall and kick off?

Back

The backward push propels you forward through the water.

Front

What does Newton's 3rd Law state about the forces between two objects?

Back

If object A exerts a force on object B, then object B exerts the same force on object A.

Front

What is the definition of friction?

Back

Friction is the force that opposes the motion of an object when it is in contact with another surface.

Front

What are the two main types of friction?

Back

Static friction and kinetic (sliding) friction.

Front

What is momentum?

Back

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

Front

How is momentum calculated?

Back

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

Front

What is the law of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.