Forces and Motion

Front

What is force?

Back

A push or pull on an object that can cause it to move, stop, or change direction.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is speed?

Back

The distance an object travels in a certain amount of time.

Front

What is direction?

Back

The path that an object follows as it moves.

Front

What is gravity?

Back

A force that pulls objects toward each other, such as the pull of the Earth on objects.

Front

What is acceleration?

Back

The rate at which an object changes its speed or direction.

Front

What is mass?

Back

The amount of matter in an object, which affects how much force is needed to move it.

Front

What is a balanced force?

Back

Forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Forces that are not equal, causing a change in motion of an object.

Front

What is friction?

Back

A force that opposes the motion of an object, often caused by contact with another surface.