P2 - Energy Stores and Transfers

Question 1

Is energy ever used up? explain why.

Answer 1

No it’s only transferred between energy stores and different objects.

Question 2

What are the energy stores? (8)

Answer 2

Thermal 
Kinetic 
Gravitational potential
Elastic 
Chemical 
Nuclear 
Electromagnetic 
Electrostatic

Question 3

How is energy transferred by heating? (2)

Answer 3

Conduction: the vibrating particles transfer energy to neighbouring particles

Convection: energetic particles of a substance move away from hotter to cooler regions.

Question 4

State the five energy stores as energy is transfer from to an electric motor.

Answer 4

Chemical -> thermal -> kinetic -> electrical -> kinetic

Fuel -> water(steam) -> generators

Question 5

Describe the energy transfers that occur in a battery operated motor. (3 marks)

Answer 5

Chemical -> electricity -> kinetic

Battery -> wires -> motors