Module 1 Science Review

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion, such as starting to move, stopping, or changing direction.

Front

What happens to a skateboarder when no unbalanced force acts on them?

Back

The skateboarder will continue to move at the same speed and in the same direction.

Front

What does it mean when a horse is accelerating?

Back

It means the horse is changing its speed, which can include speeding up or slowing down.

Front

What is friction?

Back

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

Front

How does friction affect heat during a collision?

Back

The more friction there is between colliding objects, the more heat is produced during the collision.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of a moving object.

Front

What factors affect the amount of kinetic energy an object has?

Back

The amount of kinetic energy depends on the object's mass and its speed (velocity).

Front

True or False: Kinetic energy is related to both mass and speed.

Back

True

Front

What is the relationship between mass and kinetic energy?

Back

As the mass of an object increases, its kinetic energy increases if its speed remains constant.

Front

What is the relationship between speed and kinetic energy?

Back

As the speed of an object increases, its kinetic energy increases.