Unit 2: Force s & Motion Post Review

Front

What is force?

Back

A push or pull on an object that can cause it to change its velocity (speed or direction).

Front

What is motion?

Back

The change in position of an object over time.

Front

What is mass?

Back

The amount of matter in an object, usually measured in kilograms.

Front

What is acceleration?

Back

The rate at which an object changes its velocity, which can be a change in speed or direction.

Front

What is friction?

Back

A force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is Newton's First Law of Motion?

Back

An object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and in a straight line 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

How does mass affect force in a collision?

Back

In a collision, a more massive object will exert a greater force on a less massive object, resulting in a greater change in motion for the less massive object.

Front

What is the relationship between force and acceleration?

Back

The greater the force applied to an object, the greater the acceleration it will experience, assuming mass remains constant.