Energy Resources

Question 1

What type of energy do fossil fuels store?

Answer 1

chemical energy

Question 2

What type of energy do biofuels store?

Answer 2

chemical energy

Question 3

What are different energy resources that obtain useful energy or generate electrical power?

Answer 3

fossil fuels
biofuels
hydroelectric dams
geothermal resources
nuclear fuel
solar cells
solar panels

Question 4

Are fossil fuels renewable?

Answer 4

no

Question 5

Are biofuels renewable?

Answer 5

yes

Question 6

Is hydropower renewable?

Answer 6

yes

Question 7

Are geothermal resources renewable?

Answer 7

yes

Question 8

Are solar cells renewable?

Answer 8

yes

Question 9

Are solar panels renewable?

Answer 9

yes

Question 10

What do solar cells do?

Answer 10

use light from the sun to generate electrical power

Question 11

What do solar panels do?

Answer 11

uses infrared/other electromagnetic waves from sun to heat water
also is source of wind energy

Question 12

Are fossil fuels reliable?

Answer 12

yes

Question 13

Are biofuels reliable?

Answer 13

yes, in theory

Question 14

Are hydroelectric dams reliable?

Answer 14

yes

Question 15

Are geothermal resources reliable?

Answer 15

yes

Question 16

Is nuclear power renewable?

Answer 16

yes

Question 17

Are solar cells/panels reliable?

Answer 17

yes

Question 18

Which energy resources are worst for the planet?

Answer 18

fossil fuels
nuclear (produces radioactive waste)
biofuels (produces less, but still some co2)
hydroelectric system (construction releases co2)

Question 19

Which energy resources are hardest to implement?

Answer 19

solar cells (expensive and places further North or South receive less sunlight)
geothermal (only harnessed in certain locations)
nuclear (expensive to build)

Question 20

What is efficiency of energy transfer?

Answer 20

how much energy transferred is actually used and not lost

Question 21

Except for geothermal, nuclear and tidal, what is the main source of energy for all our energy resources?

Answer 21

the radiation from the sun

Question 22

The sun’s radiation is the main source of energy for all our energy resources except…

Answer 22

geothermal, nuclear and tidal

Question 23

Through which process is energy released from the sun?

Answer 23

nuclear fusion

Question 24

What is efficiency in terms of energy?

Answer 24

% efficiency = (useful energy output/total energy output) x 100

Question 25

What is efficiency in terms of power?

Answer 25

% efficiency = (useful power output/total power output) x 100