Physics

Question 1

What is the formula for gravitational potential energy?

Answer 1

E = mgh

E: Energy
m: Mass
g: gravitational field strength (9.8)
h: height above ground

Question 2

What is the formula for kinetic energy?

Answer 2

E = ½ mv²

E: Energy
m: mass
v: velocity

Question 3

What is the formula for elastic potential energy?

Answer 3

E = ½ ke²

Question 4

What is the formula for Power?

Answer 4

P = E/t
P=W/t

Question 5

What is the formula for Efficiency?

Answer 5

E = useful output energy/total input energy

E = useful power output/total power input