Forces and Motion

Front

What describes how quickly an object moves?

Back

Speed is how fast an object is moving.

Front

Can forces change the motion of an object?

Back

True, forces can change how an object moves.

Front

What is the pulling force between two objects, such as you and Earth?

Back

Gravity is the force that pulls objects toward each other.

Front

What is an object with a magnetic force?

Back

A magnet is an object that can attract or repel certain materials.

Front

What is one example of a force that pushes or pulls an object without touching?

Back

Magnetism is a force that can push or pull without contact.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

What is a contact force?

Back

A contact force is a force that acts on an object through direct contact.

Front

What is inertia?

Back

Inertia is the tendency of an object to stay at rest or keep moving unless acted upon by a force.

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 an unbalanced force?

Back

Unbalanced forces cause an object to change its motion.