Topic 1: Enegy

Question 1

What is a system?

Answer 1

An object or a group of objects?

Question 2

What do systems have?

Answer 2

Energy

Question 3

What can energy not do?

Answer 3

Be created or destroyed

Question 4

What can energy only do?

Answer 4

Stored or transferred

Question 5

How is energy transferred?

Answer 5

When a system changes

Question 6

What the amount of energy transferred called?

Answer 6

Work done

Question 7

List all energy stores

Answer 7

Chemical
Elastic potential
Electrostatic
Gravitational potential
Kinetic
Magnetic
Nuclear

Question 8

List 3 ways energy transfers through a system?

Answer 8

Into or out of a system
Between different object
Between different energy stores

Question 9

What is power measured by?

Answer 9

Watts

Question 10

The rate of energy transfer is called what?

Answer 10

Power

Question 11

1 watt is equal to what?

Answer 11

To an energy transfer of 1 joule per second

Question 12

What is an energy resource?

Answer 12

A large store of energy

Question 13

What are the main uses of energy resources?

Answer 13

Transport
Electricity
Generation
Heating

Question 14

What can energy stores be?

Answer 14

Renewable
Non-renewable

Question 15

What are the non-renewable energy resources?

Answer 15

Oil, coal, natural gas and nuclear fuel

Question 16

What are the renewable energy resources?

Answer 16

Biofuel
Wind
Tidal
Water waves
Hydroelectricity
Geothermal
Solar

Question 17

What is a renewable energy resource?

Answer 17

Energy that is being replenished as it is used

Question 18

What is biofuel?

Answer 18

Burning wood, plants or animal waste for fuel, or producing biofuels out of special plants

Question 19

What is wind (renewable energy)?

Answer 19

Using wind at sea or land to drive turbines which generate electricity

Question 20

What is tidal?

Answer 20

Using the changing sea levels to drive electricity - generating turbines inside dams

Question 21

What is water waves?

Answer 21

Wind cause waves, which drive electricity-generating turbines

Question 22

What is hydroelectricity?

Answer 22

Using the energy of falling water to drive turbines inside dams, which generate electricity

Question 23

What is geothermal?

Answer 23

Heat from deep in the earth’s crust turns water into steam, which drives turbines that generate electricity

Question 24

What is Solar (renewable energy)?

Answer 24

Absorb sunlight to convert into electricity

Question 25

List ways fossil fuels damage the environment

Answer 25

They produce carbon dioxide which contributes to climate change
Burning coal and oil releases sulphur dioxide which cause acid rain