Unit 1 - Energy Equations

Question 1

How do we calculate Kinetic Energy?

Answer 1

Kinetic Energy = 1/2 x mass x speed^2

Question 2

How do we calculate Gravitational Potential Energy?

Answer 2

GPE = mass x gravitational field strength x height

Question 3

How do we calculate Power?

Answer 3

Power = work done / time taken

Question 4

How do we calculate Efficiency?

Answer 4

Efficiency = useful energy output / total energy input