Force & Motion Test Review

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is Newton's Third Law of Motion?

Back

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

Front

Define acceleration.

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the formula for calculating average acceleration?

Back

Average acceleration = (final velocity - initial velocity) / time.

Front

What does a straight line with a positive slope on a velocity-time graph indicate?

Back

It indicates that the object is experiencing constant positive acceleration.

Front

What does a horizontal line on a velocity-time graph indicate?

Back

It indicates that the object is moving at a constant velocity (zero acceleration).

Front

What is the law of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is friction?

Back

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