# Edexcel GCSE Physics Equations

This document contains all equations needed for Edexcel GCSE Physics

- Created by: arun
- Created on: 19-06-11 12:32

First 338 words of the document:

January 2011

Arun Nair 11C5Equations for IGCSE PhysicsSunday 9th

Topic / Notes Word Formula Letter Formula Units

Topic 1 Solids, Density = mass volume D = mv Density p

Liquids and Gases Mass grams (g)

)

Volume centimetres cubed (cm3

Pressure = Force area P = F a Pressure Pascal (Pa)

Force Newton (N)

Area centimetres squared (cm2 )

Pressure Difference = height x density x g P = h x p x g Pressure Difference Pascal (Pa)

Height meters (m)

Density rho ( p)

Gravitational field strength g

Boyle's Law Pressure 1 x Volume 1 = Pressure 2 x P1V1 = P2V2 Pressure Pascal (Pa)

Volume 2 Volume centimetres cubed (cm3 )

Topic 2 Energy Efficiency = Useful energy output Total E = U / T All in Joules (J)

Energy output

Work done = Force x Distance Moved W =F x D Work Done = Joules (J)

Force = Newton (N)

Distance Moved = (m)

Gravitational Potential Energy = mass x g x GPE = mgh GPE Joules (J)

height Mass grams (g)

Gravitational Field Strength g

Height meters (m)

Kinetic Energy = ½ x mass x speed squared

KE = ½ mv2 KE Joules (J)

Mass grams (g)

Speed minutes per second (m/s)

Power = Work Done Time taken P = W t Power Watts (W)

Work done Joules (J)

Time Taken seconds (s)

Topic 3 Forces and Average Speed = Distance Moved Time S = D t Average Speed minutes per second

Motion Taken (m/s or ms1 )

Distance Moved meters (m)

Time Taken seconds (s)

Acceleration = change in velocity time A = (v u) t Acceleration minutes per second

taken squared (ms2 )

Change in Velocity minutes per

second (m/s or ms1 )

Time taken Seconds (s)

Force = Mass x Acceleration F = ma Force Newton (N)

Mass grams (g)

Acceleration minutes per second

squared (ms2 )

Weight = Mass x g Weight Newton (N)

Mass grams (g)

Gravitational Field Strength g

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