P3

Question 1

How does biofuel produce energy

Answer 1

Is generated by direct combustion (burning biomass in too much air). It is then burned in a boiler to produce steam and the steam rotates turbines that drive a generator that produce energy. Types of biomass are food waste, manure, methane gas and etc, so it utilises many waste products making them useful.

Question 2

Where are biofuel plants built

Answer 2

It’s mostly made in places that are agricultral and it can even make biodisel for cars. Firstly you have to grow the food before even starting and then send it to the direct combustion plant to be processed

Question 3

Is biofuel renewable

Answer 3

Yes but only if it is grown at a faster rate than it is burned. So it’s energy made is reliant on wether there is lots of food and waste.

Question 4

Name 2 advantages of biofuel

Answer 4

Renewable and makes the most out of waste like manure and food waste

Question 5

What are the disadvantages of biofuels

Answer 5

Takes up a lot of land and if there isn’t enough food being produced then it won’t have any fuel

Question 6

How does nuclear power produce energy

Answer 6

Uranium is split creating lots of heat and energy. This heats up water and is put into a pressuriser, so that it cannot turn into a gas. This water heats up other water and turns into steam that turns a generator

Question 7

Where are nuclear power stations built

Answer 7

Near large bodies of water and an area of low population

Question 8

Is nuclear power renewable

Answer 8

No because uranium and plutonium will eventually run out

Question 9

Give an advantage of nuclear power 

Answer 9

Kills less than fossil fuels

Question 10

Give an disadvantage of nuclear power

Answer 10

It is very hard to dispose of depleted uranium

Question 11

How do fossil fuels produce electricity?

Answer 11

When fossil fuels are burnt it releases lots of energy 

Question 12

Name 2 advantages of fossil fuels

Answer 12

A great option for developing countries and cheap

Question 13

Name, two disadvantages of fossil fuels

Answer 13

Will run out soon and releases lots of greenhouse gases 

Question 14

How do geothermal plants produce electricity?

Answer 14

It pumps water underground into the earth’s crust, and this water turns into steam that turns a turbine 

Question 15

Where geothermal plants normally made

Answer 15

In the ring of fire, and in areas where there are holes in the crust of the Earth

Question 16

Is geothermal energy renewable?

Answer 16

Yes, because the heat from the Earth score, will take a very very very long time to run out

Question 17

Name, two advantages of geothermal energy

Answer 17

Some countries have natural cut into the Earth and so the plants are easy to make. Also, it is silent.

Question 18

Name, two disadvantages of geothermal energy

Answer 18

It’s only useful in some places and it can be very expensive

Question 19

Name a disadvantages of solar energy

Answer 19

Needs to be cleaned regulated, and it’s only useful in warm places

Question 20

How do tidal plants make energy? 

Answer 20

It drops water with a barrage, and uses the force of the waves to spin a turbine

Question 21

Where are tidal plants normally made?

Answer 21

In areas with high tides and violent waves

Question 22

Are tidal barrages renewable?

Answer 22

Yes, because the water on earth will take a very long time to run out

Question 23

Name, two advantages of tidal energy

Answer 23

Very reliable and has cheap maintenance costs

Question 24

Name, two disadvantages of tidal energy

Answer 24

Can destroy many sea life habitats,  and the dam is very expensive to build

Question 25

Disadvantages of wind energy

Answer 25

Makes lots of noise and only works if it’s windy

Question 26

Why are onshore wind turbines so cheap?

Answer 26

Because the cables don’t have to go under the sea, and as far as offshore, wind turbines