Topic 1

Question 1

What are the 8 different types of stores of Energy?

Answer 1

Thermal energy 
Kinetic energy
Gravitational potential energy
Elastic potential energy
Chemical energy 
Magnetic energy 
Nuclear energy
Electrostatic energy

Question 2

What is another phrase for Work done?

Answer 2

Energy transferred

Question 3

What is the equation for Kinetic Energy?

Answer 3

E= O.5 x M(Kg) x Vsquared(M/s)squared

Question 4

What is the equation for Gravitational potential energy?

Answer 4

Gpe = M(Kg) x G(Gravitational field strength) x H(Height,m)

Question 5

What is the Equation for Elastic Potential energy?

Answer 5

Ee=0.5 x K(Spring constant N/m) x e(squared, extension,m.)

Question 6

What is Specific Heat Capacity?

Answer 6

It is the amount of energy needed to raise the temperature of 1kg of a substance by 1’C

Question 7

What does the law of conservation of Energy state?

Answer 7

Energy cannot be created of destroyed

Question 8

What is a system?

Answer 8

It is an object or group of objects

Question 9

What does friction cause?

Answer 9

It causes energy to be transferred into thermal energy?

Question 10

What do scientists call energy which can be wasted called?

Answer 10

Dissipated

Question 11

What are the two main ways of Reducing friction?

Answer 11

Using lubricants e.g oil

Remove the air particles

Question 12

Where does conduction take place in?

Answer 12

Solids especially metals

Question 13

Why does heat move through conduction?

Answer 13

This is because particles are very closed together so heat vibrations can easily pass through.

Question 14

What is Insulation?

Answer 14

Reduce heat movement by conduction

Question 15

What states does Convection happen in?

Answer 15

Liquids and Gases

Question 16

How does convection work?

Answer 16

You heat the liquid, then particles gain heat, then the particles move further apart, making the warm water less dense, therefore the warm water rises and the cool water takes the place at the bottom.

Question 17

3 ways you can prevent energy losses through heating in homes?

Answer 17

Thermal insulation
Double glazed windows
Cavaity walls, which the air gaps reduce the amount of energy transferred by conduction through the wall

Question 18

What are the two equations for Efficiency?

Answer 18

Useful output energy transfer/Total input energy transfer

Useful power output/ Total power input

Question 19

What is Power?

Answer 19

It is the rate of energy doing work or energy transferred

Question 20

What are the two equations for Power?

Answer 20

P=E/t

P=W/t

Question 21

What are renewable energy resources?

Answer 21

They never run out.

Question 22

Give 4 examples of Renewable energy resources?

Answer 22

Hydroelectric
Solar power
Wind power
Tides

Question 23

What are advantages of Renewable resources?

Answer 23

Never run out

They don’t contribute to climate change

Question 24

What are disadvantage of Renewable resources?

Answer 24

Wind and solar power are not reliable

Useful for countries with lots of rivers

Question 25

What are non-renewable resources?

Answer 25

Resources that will run out from fossil fuels

Question 26

Give 3 examples of Non-renewable resources.

Answer 26

Coal Oil Gas

Question 27

What are advantages of Non renewable resources?

Answer 27

Provide most of our energy

Question 28

What are disadvantages of Non renewable resources?

Answer 28

They run out | Do damage to the environment

Question 29

What are advantages of wind power?

Answer 29

Renewable | Doesn't produce CO2

Question 30

What are disadvantages of Wind power?

Answer 30

Noisy | Unreliable as won't generate electricity in non windy conditions.

Question 31

What are advantages of Solar power?

Answer 31

Renewable | Doesn't produce CO2

Question 32

What are disadvantages of Solar power?

Answer 32

Can be expensive | Unreliable will not produce electricity in cloud

Question 33

What are advantages of Geothermal power?

Answer 33

Renewable | Doesn't produce CO2

Question 34

What is the disadvantage of Geothermal power?

Answer 34

Can only be used in certain areas such as Iceland and Japan

Question 35

What are advantages of Hydroelectric power?

Answer 35

Renewable Short start up time doesn't produce CO2

Question 36

What are disadvantages of Hydroelectric power?

Answer 36

Extremely expensive to build dams | Very destructive to wild life habitats

Question 37

What are Advantages of Wave power?

Answer 37

Renewable | Doesn't produce CO2

Question 38

What are the disadvantages of Wave power?

Answer 38

Not reliable | Noisy which could affect wildlife.

Question 39

What is the advantages of Tidal power?

Answer 39

Renewable | Tidal barrage could be used as a bridge

Question 40

What are the disadvantages of Tidal power?

Answer 40

Expensive | Destructive to wildlife

Question 41

What are Advantages of Biofuels?

Answer 41

Renewable | Carbon neutral

Question 42

What are Disadvantages of Biofuels?

Answer 42

Destructive to habitats for wild life | Land used to grow biofuels could be used to grow crops.

Question 43

Name one Environmental problem about Fossil fuels.

Answer 43

Oil spillages affect mammals and birds that live in and around the sea.

Question 44

Give two reasons why we currently do not use more renewable energy in the Uk.

Answer 44

It is expensive | If more power plants are built for bio fuels lots of people will not want to live next to one.