Front

What is a force?

Back

A push or pull causing motion.

Front

What is a balanced force?

Back

When two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

When two forces acting on an object are not equal, causing the object to move in the direction of the greater force.

Front

Give an example of balanced forces.

Back

A book resting on a table is an example of balanced forces.

Front

Give an example of unbalanced forces.

Back

Pushing a swing is an example of unbalanced forces.

Front

What happens when forces are balanced?

Back

The object does not move or changes its motion.

Front

What happens when forces are unbalanced?

Back

The object accelerates in the direction of the greater force.

Front

What is friction?

Back

A force that opposes motion between two surfaces that are in contact.

Front

How can you change the direction of an object?

Back

By applying a force in the opposite direction.

Front

What is motion?

Back

When an object changes its position over time.