Science

Question 1

1Energy is the

Easy

A. ability to do work B. weight of an object C. amount of matter D. speed of light

Question 2

2Energy stored in an object because of its position, such as water behind a dam, is

Medium

A. sound energy B. gravitational potential energy C. kinetic energy D. heat energy

Question 3

3Which is a renewable source of energy?

Easy

A. solar energy B. coal C. natural gas D. crude oil

Question 4

4Firewood and charcoal are examples of

Easy

A. nuclear fuels B. biomass fuels C. solar cells D. fossil fuels

Question 5

5A bulb changes electrical energy into light and heat.

Easy

A. True B. False

Question 6

6Which device changes kinetic energy into electrical energy?

Medium

A. speaker B. generator (dynamo) C. bulb D. electric motor

Question 7

7The SI unit of energy is the ___.

Easy

Your answer (fill in the blank)

Question 8

8Wind turbines change kinetic energy of wind into electrical energy.

Easy

A. True B. False

Question 9

9A battery stores ___ energy.

Easy

Your answer (fill in the blank)

Question 10

10Energy possessed by a moving object is

Easy

A. potential energy B. kinetic energy C. chemical energy D. nuclear energy