Chapter 5 - Sources of electricity

Question 1

What are power stations

Answer 1

They are buildings where electricity is Generated

Question 2

What type of power station for the energy source natural gas belongs to.

Answer 2

Gas-fired

Question 3

What type of power station for the energy-Source oil belongs to

Answer 3

Oil-fired

Question 4

What type of power Station for the energy source coal boiling to

Answer 4

Coal-fired

Question 5

What type of power station for the energy source nuclear belongs to

Answer 5

Nuclear

Question 6

What are the 3 types of fossil fuels

Answer 6

Gas, oil and coal

Question 7

When fuels are burnt to produce heat what will it produce?

Answer 7

Air pollutants

Question 8

Which type of fossil fuels is the cleanest

Answer 8

Gas

Question 9

Which type of fossil fuels produces the largest amount of pollutants

Answer 9

Coal

Question 10

Does nuclear stations use fossil fuels

Answer 10

No

Question 11

What is the energy converted to produce heat

Answer 11

Chemical potential energy → heat energy

Question 12

What energy is converted to furnace

Answer 12

Heat - kinetic energy

Question 13

What is the energy converted for turbine

Answer 13

Kinetic energy → kinetic energy

Question 14

What is the energy converted for generator

Answer 14

Kinetic energy → electrical energy

Question 15

Once electricity is generated, how energy transmitted to homes And offices

Answer 15

Through an electrical grid

Question 16

What is a transformer

Answer 16

It is a device that changes the voltage of an altering current supply

Question 17

What are the 3 parts of a trans former

Answer 17

Iron core, primary coil and secondarycoil

Question 18

When the primary coil is more than the secondary coil, is it a step up step down transformer

Answer 18

Step down

Question 19

When the secondary coil is more then the primary coil, is it a step up or step down transformer

Answer 19

Step-up