# Equations and Formulas of Physics

Here, I have compiled the equations of physics for Advance Subsidiary (As) and Alevel students.

**Density p= mass m/volume vMomentum = mass x velocity (mv)Force = mass x acceleration (ma)**

**F= mv-mu/t**pressure = force F/area A or h

**ρ**

**g**

**work/energy = force x distance (FD)**

**power = work done W/time taken t**

**electrical charge Q = current I x time t**

**Potential difference (p.d) = energy (work done) E/ charge Q**

**resistance = potential difference V / current I**

**Tension Ft = m(a+g)**

**Weight = mg**

**speed = distance/time**

**velocity = displacement/time**

**acceleration= change in velocity / time = v-u/t**

**S= ut + 1/2 at^2**

**v^2= u^2 + 2as**

Impulse = F x t

P.E = mgh

K.E= 1/2 mv^2

Efficiency = energy output / energy input

gravitational field strength = F/m

speed = frequency X wavelength

Intensity = power / surface area

power = 1/ focal length

magnification = image size / object size

Energy = QV

Energy of a photon = the plank constant h X frequency

Momentum of a particle = plank constant/ wavelength

Work done E = VIT

resistance = resistivity X length / cross-sectional area

P = IV

P= I^2 R

P = V^/ R

E= MC^2

Impulse = F x t

P.E = mgh

K.E= 1/2 mv^2

Efficiency = energy output / energy input

gravitational field strength = F/m

speed = frequency X wavelength

Intensity = power / surface area

power = 1/ focal length

magnification = image size / object size

Energy = QV

Energy of a photon = the plank constant h X frequency

Momentum of a particle = plank constant/ wavelength

Work done E = VIT

resistance = resistivity X length / cross-sectional area

P = IV

P= I^2 R

P = V^/ R

E= MC^2

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Liked it

On October 20, 2011 at 11:48 am

Wow!!!

On October 20, 2011 at 12:51 pm

yeah baby