Equations Flashcards by Steven Woodhouse

Q

Mass, acceleration, resultant force:

A

Force = mass X acceleration

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Q

Kinetic energy

A

1/2 mv^2

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Q

Displacement, force, work done

A

Work done = force X displacement

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Q

GPE

A

GPE = mass X height X g

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Q

Power, time, energy:

A

Power = energy / time

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Q

Momentum

A

Mass X velocity

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Q

Hooke’s law

A

F = k x extension

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Q

Stress

A

Force / area

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Q

Strain

A

Extension / original length

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Q

Wave speed

A

Frequency X wavelength

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Q

What is intensity proportional to?

A

Amplitude ^2

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Q

Diffraction grating

A

d X sin theta = n X wavelength

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Q

Charge, time, current

A

Charge = current X time

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Q

Voltage, charge, work done

A

Voltage = work done / charge

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Q

Resistance, current^2, power

A

Power = current^2 X resistance

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Q

Resistance, area, resistivity, length

A

Resistance = resistivity X area / length

Q

Change in momentum

A

Force X time

Q

Energy, charge, voltage

A

Energy = charge X voltage