Physics IGCSE equations Flashcards by rachele airaghi | Brainscape

Q

RESULTANT FORCE

A

CHANGE IN MOMENTUM/TIME

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Q

ENERGY TRANSFERRED

A

MASS X SPECIFIC HEAT X TEMPERATURE CHANGE

CAPACITY

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Q

POWER THROUGH A TRANSFORMER

A

V1XI1=V2XI2

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Q

FORCE

A

MASS X ACCELERATION

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Q

EFFICIENCY

A

USEFUL ENERGY OUTPUT/TOTAL ENERGY INPUT

USEFUL WORK DONE/TOTAL ENERGY INPUT

USEFUL POWER OUTPUT/TOTAL POWER INPUT

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Q

WAVE EQUATION

A

FREQUENCY X WAVELENGTH

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Q

USEFUL POWER OUTPUT

A

FORCE X SPEED

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Q

MOMENT OF A FORCE ABOUT A POINT

A

FORCE X PERPENDICULAR DISTANCE FROM

THE POINT

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Q

DENSITY

A

MASS/VOLUME

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Q

PRESSURE

A

FORCE/AREA

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Q

VOLUME

A

MASS/DENSITY

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Q

RESISTANCE

A

P.D. ACROSS CONDUCTOR/CURRENT

THROUGH CONDUCTOR

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Q

ACCELERATION

A

CHANGE IN VELOCITY/TIME

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Q

SNELL’S LAW

A

SIN i/SIN r =IS CONSTANT

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Q

LOAD

A

SPRING CONSTANT X EXTENSION

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Q

KELVIN TEMPERATURE

A

CELSIUS TEMPERATURE + 273

Q

MASS

A

VOLUME X DENSITY

Q

COMBINES RESISTANCE

A

RESISTANCES MULTIPLES/RESISTANCES ADDED

Rp = R1XR2/R1+R2

Q

WAVE SPEED

A

FREQUENCY X WAVELENGTH

Q

AVERAGE SPEED

A

DISTANCE MOVED/TIME TAKEN

Q

PRESSURE IN A LIQUID

A

DENSITY X g X HEIGHT

Q

ENERGY TRANSFORMED

A

POWER X TIME

P.D. X CURRENT X TIME

Q

CURRENT

A

CHARGE/TIME TAKEN

Q

OUTPUT VOLTAGE/INPUT VOLTAGE =

A

TURNS ON OUTPUT COIL/TURNS ON INPUT COIL

Q

BOYLE’S LAW

COMPRESSING GASSES

A

P1XV1=P2XV2 (AT CONSTANT TEMPERATURE)

Q

REFRACTIVE INDEX

A

SPEED OF LIGHT IN/SPEED OF LIGHT IN

MEDIUM VACUUM

Q

RESULTANT FORCE

A

MASS X ACCELERATION

Q

WORK DONE

A

FORCE X DISTANCE MOVED IN THE DIRECTION OF

THE FORCE

Q

KINETIC ENERGY

A

1/2 X MASS X VELOCITY^2

Q

MOMENTUM

A

MASS X VELOCITY

Q

SIN C =

A

1/r

Q

WEIGHT

A

MASS X g (g = 10N)

Q

POWER

A

WORK DONE /TIME TAKEN

ENERGY TRANSFORMED/TIME TAKEN

P.D. X CURRENT

Q

CHARGE

A

CURRENT X TIME

Q

GRAVITATIONAL POTENTIAL ENERGY

A

MASS X g X HEIGHT

Q

RESISTIVITY

A

Rho X 1/4

Rho X (LENGTH/AREA)

1/R = 1/R1 + 1/R2

R = R1 + R2

(RESISTANCE A X AREA A)/LENGTH A
= (RESISTANCE B X AREA B)/LENGTH B