Work, Power, Energy and Efficiency

Question 1

what’s the equation linking efficiency, useful output and total input

Answer 1

efficiency = useful output / total input

Question 2

what’s the equation linking work done, force and distance moved

Answer 2

work done = force X distance moved

Question 3

what’s the equation linking GPE, mass, g and height

Answer 3

GPE= mass x g x height

Question 4

Whats the equation linking Kinetic energy, 1/2, mass and speed

Answer 4

KE= 1/2 x Mass x Speed

Question 5

what’s the equation linking power, work done and time taken

Answer 5

Power = work done / time taken