physic formulas Flashcards by hi poo

Q

Centripetal force

A

F=Mass×velovity²÷radius (N)

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Q

Force formula

A

Force=Mass×acceleration (N)

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Q

Impulse formula

A

I= F(n)×T(S)= ▲p= M(KG)(V-U) (Kg m/s)

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Q

Work done formula

A

W=Force×distance (j)

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Q

Charles’ law

A

V1÷T1=V2÷T2

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Q

U

A

Initial velocity (ms/1)

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Q

V

A

Final velocity (m/s)

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Q

Gravitational potential energy

A

Ep=Mgh(kg)(m) (J)

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Q

Efficiency

A

Useful energy output ÷ total energy input ×100 (%)

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Q

Combined gas law

A

P1×V1÷T1=P2×T2÷T2

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Q

Gradient formula

A

Rise/run

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Q

Heat capacity formula

A

C=mass×specific heat capacity (J)

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Q

Gay Lussac’s law

A

P1÷T1=P2÷T2

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Q

Change in momentum formula

A

▲P= MV - MU = M(V-U) (kg m/s)

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Q

Displacement formula

A

S=UT+1÷2AT² (m)

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Q

Thermal energy added or removed formula

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A

Q=mass×specific heat capacity×▲temperature (J)

Q

S

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A

Displacement (m)

Q

Thermal energy added formula latent heat

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A

Q=mass×specifc latent heat (J)

Q

Moment formula

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A

Moment=Force×distance (Nm)

Q

Power

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A

P= work done/time taken= Energy transferred/ time taken (W)

Q

Boyle’s law

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A

P1×V1=P2×V2

Q

T

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A

Time (min)

Q

a

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A

Acceleration (m/s/s)

Q

Weight formula

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A

Weight=mass×gravitaional field strength (N)

Conservation of momentum

Pb=Pa

Displacement formula

S=((U+V)÷2)T (M)

Final velocity formula acceleration formula

V=U+AT (m/s) A=(v-u)/T (m/s/s)

Kinetic energy formula

Ek=½mv² (J)

Momentum Formula

P=MV(Kg m/s)