Energy

Question 1

Investing specific heat capacity independent variable

Answer 1

Material

Question 2

Investing specific heat capacity dependant variable

Answer 2

Specific heat capacity

Question 3

Investing specific heat capacity control variable

Answer 3

Insulating layer , intial temperature

Question 4

Definition of specific heat capacity

Answer 4

The amount of energy needed to raise the temperature of 1 kg of a material by 1 c

Question 5

All the energy stores

Answer 5

Kinect
Thermal
Chemical
Elastic potential
Gravitational potential
Electrostatic
Magnetic
Nuclear

Question 6

Kinectic energy store meaning

Answer 6

Moving objects have kinetic energy

Question 7

Thermal energy store meaning

Answer 7

All objects have thermal energy with a certain temperature

Question 8

Chemical energy store meaning

Answer 8

Anything that releases during a chemical reaction

Question 9

Elastic potential meaning

Answer 9

Something stretched

Question 10

Gravitational pull meaning

Answer 10

Anything that is raised

Question 11

Electrostatic meaning

Answer 11

Charges that attract or repel

Question 12

Magnetic meaning

Answer 12

Magnet that can attract or repel

Question 13

Nuclear meaning

Answer 13

The the nuclease of an atom releases energy

Question 14

Wha are the way that energy can be transferred

Answer 14

Mechanically - when work is done
Electrically -when moving charge doesn’t work
Heating - when energy transfers from a hot object to a cold one
Waves

Question 15

Conversation of energy

Answer 15

It can’t be created or destroyed just transfers from one from another

Question 16

Does lubricants reduce the amount of energy because of friction

Answer 16

Yes

Question 17

Conduction meaning

Answer 17

When a solid is heated the particles vibrate and collide more

Question 18

Convection meaning

Answer 18

When a liquid or gas is heated the particles move faster

Question 19

Insulation meaning

Answer 19

Reduces the amount of heat lost

Question 20

Ways of insulation

Answer 20

Thick walls
Thermal insulation
Loft insulation

Question 21

Non renewable meaning g

Answer 21

It provide most energy but will run out such as oill

Question 22

Renewable meaning

Answer 22

They will never run out but dosent provide much energy

Question 23

Solar add and diss

Answer 23

Solar uses sunlight
Add- renewable no pollution in sunny countries its reliable
Diss- only works during the day

Question 24

Geothermal(energy of hot rocks ) add and diss

Answer 24

Add -renewable and reliable as rocks are always hot
Diss - may releases greenhouse gases

Question 25

Wind (turbines ) add and diss

Answer 25

Add - renewable no lasting damage Diss -doesn’t work if there is no wind cannot increase supply if needed

Question 26

Hydroelectricity (uses a dam) add and diss

Answer 26

Add -renewable can increase supply if needed Diss - animals and plants may loses habitats

Question 27

Wave power (powers turnbines ) add and diss

Answer 27

Add- renewable no pollution Diss - disturbs the seabed and habitats

Question 28

Tidal barrages ( big dams across rivers ) add and diss

Answer 28

Add- renewable very reliable no pollution Diss - fish can be killed in the turbines Change habitats if wildlife

Question 29

Biofuels add and diss

Answer 29

Add - renewable and reliable carbon neutral Diss- high cost

Question 30

Non renewable fossil fuels add and diss

Answer 30

Add- reliable enough to meet the current demand Diss-running out release greenhouse leads to global warming