Force and Motion

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to move or change its motion.

Front

What happens to objects without gravity?

Back

Without gravity, objects would fly off into space.

Front

What does it mean to repel something?

Back

To repel something means to push it away.

Front

What does friction produce?

Back

Friction produces heat.

Front

Where does Earth's gravity pull everything?

Back

Earth's gravity pulls everything toward the center of the earth.

Front

What is force?

Back

A force is a push or pull on an object.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other.

Front

What is an example of a balanced force?

Back

An example of a balanced force is when two people push on opposite sides of a box with equal strength.

Front

What is an example of unbalanced forces?

Back

An example of unbalanced forces is when a person pushes a swing, causing it to move.