Renewable energy

Question 1

Renewable energy stores

Answer 1

wind, wave , tidal, hydroelectric, geothermal, biomass, solar

Question 2

Renewable energy stores are easily

Answer 2

replenishable and infinite

Question 3

Wind power definition

Answer 3

turbines convert kinetic energy from the wind into electricity, the energy of the wind turns the blades on the rotor this is connected to a generator which creates electricity

Question 4

Wind power advantages

Answer 4

cost effective, no CO2, sustainable

Question 5

Wind power disadvantages

Answer 5

unpredictable, eye sore, high costs to transfer electricity from remote sites

Question 6

Tidal power definition

Answer 6

movement of the water turns underwater turbines which drive the generators that convert it into electricity, tidal barrage systems make use of the difference between low and high tides,

Question 7

Tidal power advantages

Answer 7

constant, predictable, no CO2

Question 8

Tidal power disadvantages

Answer 8

expensive to set up and maintain

Question 9

Solar panels definition

Answer 9

absorb light into photovoltaic cells which is converted into electricity

Question 10

Solar panels advantages

Answer 10

no CO2, clean power

Question 11

Solar panels disadvantages

Answer 11

dependant on the weather,

Question 12

Biomass definition

Answer 12

the energy can be extracted from organic matter by burning or anaerobic digestion which creates biogas and a biofertilizer

Question 13

Biomass advantages

Answer 13

large supply of material, carbon neutral

Question 14

Biomass disadvantages

Answer 14

risk of deforestation

Question 15

Hydroelectric power definition

Answer 15

a turbine converts falling water into energy and a generator turns it into electricity e.g. dams

Question 16

Hydroelectric power advantages

Answer 16

reliable, doesn’t pollute, can be regualted

Question 17

Hydroelectric power disadvantages

Answer 17

high cost, environmental pollution, affects ecosystems

Question 18

Nuclear power definition

Answer 18

nuclear reaction which takes place in a reactor releases large amounts of energy which generates steam, clean and efficient, waste material is radioactive