Daniel Brener
Mind Map by , created over 6 years ago

IGCSE IGCSE Physics Mind Map on Formulas, created by Daniel Brener on 04/11/2013.

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Daniel Brener
Created by Daniel Brener over 6 years ago
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Formulas
1 Electricity
1.1 Voltage = Current x Resistance
1.1.1 V=IR
1.2 Charge = Current x Time
1.2.1 Q=It
1.3 Electrical Energy = Charge x Volts
1.3.1 P = IV
2 Energy
2.1 Work Done = Force * Distance Moved in the direction of the force
2.1.1 WD = FxD
2.1.2 Work Done = Energy Transfered
2.2 Efficency
2.2.1 Efficency = Useful Energy Output/Total Energy Input
2.2.1.1 To make a %age just multiply by 100
2.3 Power = (Energy Transfered/Time taken) x 100
2.3.1 Power = Work Done/Time
2.3.1.1 Unit for power: Watts
2.4 Energy Increase = mgh
2.5 GPE = mgh
2.6 KE = 1/2 x m(v)squared
2.7 Electrical Energy = Charge x Volts
3 SI Units
3.1 Meters/M
3.2 Joules/J
3.3 Newtons/N
3.4 Seconds/S
3.5 m/s
3.6 Watts/W
4 Force
4.1 Force = mass x area
4.1.1 F = ma
4.2 Weight in Newtons = mass x gravity
5 Notes
5.1 Always take gravity to be 10 unless otherwise given
5.1.1 Gravity can also sometimes be given as 9.81

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