P1

Question 1

Work equation

Answer 1

Work done (w) = force applied(f) x distance moved ( s)
w = Fs

Question 2

Gravitational potential energy equation

Answer 2

Change in gravitational potential energy (J) = weight(w) x change of height(m)
J = wm

Question 3

Mass and gravitational potential energy equation

Answer 3

Change of gravitational potential energy(J) = mass(m) x gravitational field strength(g) x change of height(h)
J = gmh

Question 4

Kinetic energy equation

Answer 4

Kinetic energy(Ek) = 1/2 x mass(m) x speed^2(v^2)
Ek = 1/2 m v^2

Question 5

Elastic potential energy equation

Answer 5

Elastic potential emergy(Ee) = 1/2 x spring constant(k) x estension^2(e^2)
Ee = 1/2 k e^2

Question 6

Power equation

Answer 6

Power(P) = Energy tramsfered(E) / Time(t)
P = et

Question 7

Conservation of energy

Answer 7

Energy cannot be created or destroyed

Question 8

Work done

Answer 8

When force make object move
Energy transferred = work done

Question 9

Gravitational potential energy

Answer 9

Energy transfer from one to gravitational emergy

Question 10

Useful energy

Answer 10

Energy transfer in wanted way

Question 11

Wasted energy

Answer 11

Energy not useful transfered

Question 12

Power

Answer 12

Energy exert to object per second