Force and Motion

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is motion?

Back

Motion is the movement of an object from one place to another.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to move or change its motion.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is friction?

Back

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

Front

What is a lever?

Back

A lever is a simple machine that helps lift or move heavy objects using a fulcrum.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects apart.

Front

What is an example of a lever?

Back

A see-saw is an example of a lever.

Front

What is an example of a wedge?

Back

A knife blade is an example of a wedge.

Front

What happens when you push a table and a friend helps you?

Back

The table moves faster because the combined force is greater.