Year 2 - All Mandatory Equations

Question 1

Thermal - Molecule number

Answer 1

N = mole number x Avogadro’s Number

Question 2

Thermal - Mole Number

Answer 2

n = molar mass / molecular mass

Question 3

Thermal - Gas Law constant

Answer 3

pV/T = constant

Question 4

Gravitational Fields - Gravitational Potential Energy

Answer 4

-(G(m1)(m2)) / r

Question 5

Gravitational Fields - Orbit time of a sateillite

Answer 5

T^2 = (4Pi^2)(r^3) / (G)(M)

Question 6

Gravitational Fields - speed of sateillite

Answer 6

v^2 = (G)(M) / r

Question 7

Gravitational Fields - Escape Velocity

Answer 7

v^2 = 2(G)(M) / r

Question 8

Magnetic Fields - radius of charged particle in mag field

Answer 8

r = mv / BQ

Question 9

Magnetic Fields - time period of charged particle in mag field

Answer 9

T = 2(Pi)m / BQ

Question 10

Nuclear Physics - distance of closest approach

Answer 10

Kinetic energy = (k)(Q1)(Q2) / r

Question 11

Nuclear Physics - radius of nucleus through diffraction

Answer 11

sinx = (1.22 x wavelength) / 2R

Question 12

Nuclear Physics - Activity over time

Answer 12

A = initial activity x e^(- wavelength x time)