SA2 FINALS

Question 1

What is the primary method to harness solar energy?

Answer 1

Solar panels

Solar panels convert sunlight into electrical energy.

Question 2

Geothermal energy is obtained from _______.

Answer 2

the heat inside the Earth

Question 3

What do solar panels convert sunlight into?

Answer 3

electrical energy

Question 4

Coal is formed from the remains of _______.

Answer 4

plants and animals

Question 5

What type of energy do hydro power plants generate?

Answer 5

electricity

Question 6

Wind energy is captured using _______.

Answer 6

wind turbines

Question 7

Energy is released from fossil fuels when they are _______.

Answer 7

burned

Question 8

How many forms of fossil fuels are there?

Answer 8

three

Question 9

Energy in the form of heat and light is obtained by _______.

Answer 9

sun

Question 10

Trapped heat inside the Earth is known as _______.

Answer 10

geothermal energy

Question 11

What is the primary source of solar energy?

Answer 11

sunlight

Question 12

What is the main environmental concern associated with coal energy?

Answer 12

pollution

Question 13

Which type of energy resource is most likely used in a geothermal power plant?

Answer 13

geothermal

Question 14

Combustion is a method of producing _______.

Answer 14

biomass energy

Question 15

Wind energy is a form of _______ energy.

Answer 15

renewable

Question 16

What is the primary purpose of using biomass energy?

Answer 16

All of the above

Includes electricity generation, heating and cooking, and transportation fuel.

Question 17

Which of the following is a disadvantage of renewable energy?

Answer 17

Expensive

Question 18

What is necessary for the production of hydroelectric power throughout the year?

Answer 18

Dams filled with water

Question 19

Which organic matter is produced by plants?

Answer 19

Biomass

Question 20

What is the main advantage of hydroelectric power?

Answer 20

It does not produce greenhouse gases

Question 21

What are the different types of wind energy?

Answer 21

• Onshore Wind
• Offshore Wind

Question 22

How does wind energy work?

Answer 22

By converting the kinetic energy of moving air into electrical energy

Question 23

Define Geothermal Energy.

Answer 23

Energy generated from the heat within the Earth

Question 24

What is the Law of Conservation of Energy?

Answer 24

Energy cannot be created or destroyed, only converted from one form to another

Question 25

What are the advantages of renewable energy sources?

Answer 25

* Renewable - will always be available * Clean - no local air and water pollution * Do not contribute to global warming - no carbon emissions

Question 26

What are the disadvantages of renewable energy sources?

Answer 26

* Noise caused by wind energy * No solar power on cloudy days and at night * High installation cost

Question 27

What is a non-renewable source of energy?

Answer 27

A natural resource found underneath the earth

Question 28

Name two types of energy resources.

Answer 28

* Renewable energy sources * Non-renewable energy sources

Question 29

Why are fossil fuels considered non-renewable?

Answer 29

They take millions of years to form and are being used up faster than they can be replaced