energy

Question 1

work done equation

Answer 1

Wd = f x d
Wd = work done (J)
f = force (N)
d = distance (m)

Question 2

Gravitational potential energy

Answer 2

GPE = m x g x h
J = kg x N x m

Question 3

elastic energy equation

Answer 3

EE = 1/2 x force x extension
J = N x m

Question 4

other elastic energy equation

Answer 4

EE = 1/2 x K x e^2
J = N/m x m

Question 5

kinetic enegy

Answer 5

KE = 1/2 x m x v^2
J kg m/s

Question 6

name 2 non renewable enegy resources

Answer 6

fossil fuels ( gas coal)
nuclear

Question 7

name 2 renewable energy resources

Answer 7

biofuel, qing, hydroelectric, geothermal, tidal, solar, waves

Question 8

energy

Answer 8

cannot be created or destroyed

Question 9

power equation

Answer 9

power = energy transferred / time
W J s
power = work done / time
W J s

Question 10

efficiency equation

Answer 10

e = (useful energy output / total energy input) X 100

e = (useful power output / total power input) X 100