Energy resources and electricity generation

Question 1

explain wind power for electricity generation?

Answer 1

an electricity generator on
top of tall tower

advantages

• renewable
• little pollution

disadvanges

- expensive
- lots of cables
needed
- unreliable
- visual pollution

Question 2

explain wave power for electricity generation?

Answer 2

waves turn a floating generator

advantages

• renewable
• little pollution

disadvantages

- unreliable

Question 3

explain Hydroelectric for electricity generation?

Answer 3

generators are turned by
water running downhill

advantages

• renewable
• reliable
• little pollution

disadvantages

- expensive
- destroys habitats

Question 4

explain tidal power for electricity generation?

Answer 4

traps high tide and uses it to
turn generators

advantages

• renewable
• little pollution

disadvantage

- unreliable
- expensive

Question 5

explain solar cells for electricity generation?

Answer 5

flat solid cells that convert
solar energy directly into
electricity

advantages

• good for remote
  places
• little pollution

disadvantages

• unreliable
• expensive

Question 6

explain Solar heating panels for electricity generation?

Answer 6

use Sun’s energy to heat
water directly

advantages

• good for remote
  places
• little pollution

disadvantages

• unreliable
• expensive

Question 7

explain geothermal for electricity generation?

Answer 7

water pumped into hot rocks
underground produces
steam to turn turbines

advantages

• reliable
• little pollution

disadvantages

• rare