Energy

Question 1

Principle of conservation of energy

Answer 1

Energy can’t be created or destroyed only changed from one form to another

Question 2

How energy changes as the balls move upwards

Answer 2

GPE increases and KE decreases therefore KE goes to GPE

Question 3

Fossil fuels are from

Answer 3

Dead plants and animal remains

Question 4

3 conditions to make fossil fuels

Answer 4

Time
Pressure
Temperature

Question 5

Sources of fossil fuels

Answer 5

Coal
Gas
Oil

Question 6

Non renewable sources

Answer 6

Fossil fuels
Nuclear

Question 7

Renewable sources

Answer 7

Hydroelectricity
Solar
Wind
Biofuels

Question 8

Kinetic energy =

Answer 8

1/2mass x velocity2

Question 9

Swing moving

Answer 9

GPE decreases transferred into KE when increases

Question 10

GPE =

Answer 10

Mass x Gravity x Height

Question 11

Efficiency =

Answer 11

Useful energy output
——————————-
Total energy input

Question 13

Renewable energy

Answer 13

Energy that won’t run out

Question 14

Non renewable energy

Answer 14

Source that can run out

Question 15

Forms of energy

Answer 15

Heat
Light
Sound
kinetic
Gravitational potential
Electrical
Magnetic
Strain

Question 17

Non renewable nuclear fuel

Answer 17

Uranium