Work, energy and power

Question 1

Equation for work done

Answer 1

Force x distance moved

work done = energy transferred

Question 2

What is Gravitational potential energy

Answer 2

A stored or hidden energy due to its position, when its raised above the ground

Question 3

Equation for GPE

Answer 3

Mass x gravity(10 for earth) x height

Question 4

What is kinetic energy

Answer 4

Gains energy through motion or movement of an object

Question 5

Equation for KE

Answer 5

0.5 x mass x velocity^2

Question 6

The principle of conservation of energy

Answer 6

Energy is neither created nor destroyed

Question 7

Equation for Power (W)

Answer 7

Work done(J) / time (s)
Or
Energy transferred (J) / time (s)

Question 8

Examples of renewable sources of energy

Answer 8

Wind power, HEP, Solar power, Geothermal power, Wave and tidal energy,

Question 9

Examples of non-renewable sources of energy

Answer 9

Fossil fuels (Natural gas, oil and coal), Nuclear fission

Question 10

Adv and Dis-adv of Fossil fuels

Answer 10

Advantage: