Physics IGCSE Revision - Mega Lecture

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Physics IGCSE Mocks

Revision

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Volume and Density

Mass

Density =

Volume

m

¦Ñ(rho) =

V

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Volume and Density

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How to find the volume of an irregular solid?

? You need to fill up a measuring cylinder with

water and measure till where it is filled.

? Then lower the irregular solid into the

measuring cylinder and measure how much

the water has risen.

? Subtracting the two values that you have will

give you the volume of the substance.

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Speed

Speed

=

Distance

Time

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Velocity

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v-u

a=

t

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Negative

acceleration is

called deceleration

or retardation

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=

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Average

Acceleration

Change in

velocity

Time

Taken

v= final velocity

u=initial velocity

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