Y9/10 Flashcards by maya dharampal | Brainscape

Q

Acceleration?

A

Final velocity-initial velocity/ time

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Q

Weight?

A

Mass*gravity

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Q

Electrical power?

A

Current*voltage

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Q

Charge?

A

Current*time

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Q

Wave speed?

A

Frequency*wavelength

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Q

Wave frequency?

A

1/time period

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Q

Angle of incident?

A

Angle of incidence=angle of reflection

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Q

Refractive index?

A

Speed of light in a vacuum/ speed of light in that material

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Q

Sin C? (Sine critical angle)

A

1/refractive index

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Q

Efficiency?

A

Useful energy output/total energy input

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Q

Work done?

A

Force* distance moved

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Q

Power?

A

Work done/ time taken

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Q

KE?

A

0.5mv^2

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Q

GPE?

A

Mgh

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Q

KE gained?

A

GPE lost

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Q

Density?

A

Mass/volume

Q

Pressure?

A

Force/area

Q

Pressure difference? (In fluids)

A

Heightdensitygravity

Q

Speed?

A

Distance/ time