FORMULA SHEET (Physics)

Question 1

Wave speed v = fλ

Answer 1

v - wavespeed (m/s)
f - frequency (Hz)
λ - wavelength (m)

Question 2

Speed of transverse wave on string v = √(T/μ)

Answer 2

v - wavespeed (m/s)
t - tension (N)
μ - Linear Density (kg/m)

Question 3

Refractive Index n = c/v = sin i/ sin r

Answer 3

n = refractive index
c = speed of light
v = phase velocity of light

Question 4

Critical angle sinC = 1/n

Answer 4

C = critical angle
N = refractive index

Question 5

Inverse square I = k/r²

Answer 5

I = Intensity
R = distance
K = constant