Physics Equations

Question 1

Kinetic energy, speed, mass

Answer 1

Kinetic energy = 0.5 x speed2 x mass

Question 2

Gravitational potential energy, mass, gravitational field strength, height

Answer 2

Gpe = mass x field strength x height

Question 3

Power, energy transferred, time

Answer 3

Power = energy transferred / time

Question 4

Work done, time, power

Answer 4

Power = work done / time

Question 5

Useful output energy transfer, total input energy transfer, efficiency

Answer 5

Efficiency = useful output / total input

Question 6

Useful power output, efficiency, total power input

Answer 6

Efficiency = useful output / total input

Question 7

Charge flow, time, current

Answer 7

Charge flow = current x time

Question 8

Resistance, current, potential difference

Answer 8

P.d = current x resistance

Question 9

Power, potential difference, current

Answer 9

Power = p.d x current

Question 10

Power, current, resistance

Answer 10

Power = current2 x resistance

Question 11

Charge flow, potential difference, energy transferred

Answer 11

Energy transferred = charge flow x p.d

Question 12

Density, mass, volume

Answer 12

Density = mass / volume

Question 13

Volume, pressure, constant

Answer 13

Constant = pressure x volume

Question 14

Gravitational field strength, weight, mass

Answer 14

Weight = gfs x mass

Question 15

Force, work done, distance

Answer 15

Work done = force x distance

Question 16

Pressure, area of that surface, force normal to a surface

Answer 16

Pressure = normal force of a surface / area of surface

Question 17

Height of column, density of liquid, gravitational field strength, pressure due to a column of liquid

Answer 17

Pressure = density x height x gravitational field strength