Equation List

Question 1

Weight =

w =

Answer 1

Weight (N) = Mass (kg) x Gravitational Field (N/kg)

w = m x g

Question 2

Applied Force =

F =

Answer 2

Applied Force (N) = Spring Constant (N/m) x Extension (m)
F = k x e

Question 3

Current =

I =

Answer 3

Current (A) = Charge Flowed (C) / Time (s)

I = Q/t

Question 4

Wave Speed =

v =

Answer 4

Wave Speed (metre per second) = Frequency (hertz) x wavelength (metre)
v = f x λ

Question 5

Efficiency =

n =

Answer 5

Efficiency = (Useful Energy Output / Total Energy Input) x 100
n = E^Out / E^In

Question 6

Frequency =

f =

Answer 6

Frequency = 1 / Time period
f = 1 / t