Science Chapters 1-5 Review

Front

What happens when you close a switch in a circuit?

Back

Closing the switch allows electricity to flow, which can make devices like buzzers produce sound.

Front

What type of force is gravity?

Back

Gravity is a noncontact force that pulls objects toward each other.

Front

What do like poles of a magnet do when they face each other?

Back

Like poles of a magnet repel each other.

Front

Which surface creates the most friction for a sliding hockey puck?

Back

A hockey puck sliding on a wooden board has the most friction.

Front

How can you tell if milk is a solution?

Back

Milk is a solution because the parts are blended completely and the mixture looks the same throughout.

Front

What is a contact force?

Back

A contact force is a force that requires physical contact between two objects.

Front

What is a noncontact force?

Back

A noncontact force is a force that acts at a distance, such as gravity or magnetism.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it slides over a surface.

Front

What happens to the motion of an object when friction is increased?

Back

When friction is increased, the motion of the object slows down.

Front

What is a solution in science?

Back

A solution is a mixture where one substance is completely dissolved in another, resulting in a uniform appearance.