Science Review Quiz

What happens to the speed of light when it passes from air into water?

• It speeds up

• It slows down

• It does not change

• It stops

If you use more batteries in a flashlight, what happens to the brightness of the light?

• It gets dimmer

• It stays the same

• It gets brighter

• The flashlight turns off

What is the net force on an object when two equal forces push on it in opposite directions?

• The net force is zero

• The net force is double the force of one push

• The net force is half the force of one push

• The net force depends on the weight of the object

Which of the following is a source of renewable energy?

• Coal

• Oil

• Wind

• Natural Gas

If you shout in a big empty room, you hear an echo. What is an echo?

• The sound getting louder

• The sound bouncing back from a surface

• A new sound being created

• The sound disappearing