Physics Igcse Flashcards by Amelie Atala Piccini

Q

Speed

A

Distance/time

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Q

Acceleration

A

Change in velocity/time taken

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Q

Weight

A

Mass x gravitational field strength (10)

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Q

Density

A

Mass/volume

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Q

Extension

A

Force/ spring constant

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Q

Moment

A

Force x distance to pivot

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Q

Pressure

A

Force/area

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Q

Work

A

Force x distance
= energy transferred

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Q

Gravitational potential energy

A

Mass x gravitational field strength (10) x height

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Q

Kinetic energy

A

1/2 x mass x velocity ^2

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Q

Power

A

Energy transferred/ time taken

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Q

Efficiency

A

Useful energy output/ total energy input x 100%

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Q

Efficiency

A

Useful power output/ total power input x 100%

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Q

Wave speed

A

Frequency x wavelength

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Q

Angle of incidence

A

Angle of reflection

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Q

Refractive index

A

Wave speed in a vacuum/ wave speed in medium

Q

Refractive index

A

Sin(angle of incidence)/ sin (angle of refraction)

Q

Current

A

Charge/time

Q

Current

A

Potential difference /resistance

Q

Resistance

A

1/resistance 1 + 1/resistance 2 + 1/resistance 3

Q

Power

A

Current x potential difference

Q

Energy transferred

A

Current x potential difference x time