energy

Question 1

what are the 10 stores of energy?

Answer 1

chemical, thermal, kinetic, gravitational potential, elastic potential, nuclear, sound, light, electric and magnetic

Question 2

what is the unit for energy?

Answer 2

Joules (J)

Question 3

what is conservation of energy?

Answer 3

Energy can be transferred from one form to another but can’t be created or destroyed

Question 4

energy input equation

Answer 4

Energy input= useful energy+ wasted energy

Question 5

what is wasted energy

Answer 5

energy that is not in a useful format that is dissipating

Question 6

work done equation

Answer 6

Work done = force applied x distance moved

Question 7

efficiency equation

Answer 7

Efficiency = useful energy transferred/ total energy supplied by the device

Question 8

power equation

Answer 8

Power = energy transferred to appliance / time taken for the energy to be transferred

Question 9

what is an energy transfer of 1 joule per second equal to?

Answer 9

equal to a power of 1 Watt

Question 10

what happens when the more powerful motor?

Answer 10

the faster it moves a particular load.