Equations to Learn

Question 1

Equation for Distance, Speed and Time?

Answer 1

Distance = Speed x Time

Question 2

Equation for Acceleration, Time taken and Velocity?

Answer 2

a = (v-u)
—–
t

Question 3

Equation for Mass, Force and Acceleration?

Answer 3

Force = Mass x Acceleration

F = MA

Question 4

Equation for efficiency?

Answer 4

efficiency = useful energy
——————–
total energy

Question 5

Equation for Momentum?

Answer 5

Momentum = mass x velocity

p = mv

Question 6

Equation for Wave Speed, Wavelength and Frequency?

Answer 6

Wave Speed = frequency x wave length

Question 7

Equation for Wave Speed, Time and distance?

Answer 7

Wave Speed = Distance / Time

V = x/t

Question 8

Equation for Density?

Answer 8

Density = mass/volume

p=m/v

Question 9

Equation for Work Done?

Answer 9

Work Done = Force x distanced moved in direction of force

E = F x d

Question 10

Equation for GPE?

Answer 10

GPE (change) = mass x 9.8 x change in height

Question 11

Equation for Kinetic Energy?

Answer 11

Kinetic Energy = 1/2 x mass x (speed)²

Question 12

Equation for Power, work done and time taken?

Answer 12

Power = Work Done/ Time taken

P = E/t

Question 13

Equation for Energy Transferred?

Answer 13

Energy Transferred = charge moved x potential difference

E = Q X V

Question 14

Equation for Charge?

Answer 14

Charge = Current x Time

Q = I x R

Question 15

Equation for Potential Difference?

Answer 15

Potential Difference = Current x Resistance

V = I x R

Question 16

Equation for Power, energy transferred and time taken?

Answer 16

Power = Energy Transferred/ Time taken

P = E/t

Question 17

Equation for Electrical power, potential difference, current ?

Answer 17

Electrical Power = current x potential difference

P = I x V

Question 18

Equation for Electrical Power, current and resistance?

Answer 18

Electrical Power = current² x resistance

P = I² x R

Question 19

Equation for spring force?

Answer 19

Force exerted on a spring = spring constant x extension

Question 20

Equation for Weight?

Answer 20

Weight = mass x gravitational field strength

W = m x g (9.8)