Term 2 Equations Flashcards by Diya N

Q

Pressure in solids and the unit

A

P=Force/Area N/M^2 or Pa

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Q

Pressure in liquids and the unit

A

P= DensityGravityHeight Pa

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Q

Atmospheric pressure at sea level

A

About 100 KPa

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Q

Kinetic energy

A

(Mass*Velocity^2)/2

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Q

Gravitational potential energy

A

MassGravityHeight or Weight*Height

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Q

Useful Efficiency

A

Efficiency= Useful energy output/ Total energy input

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Q

What is the unit of wavelength

A

Lambda

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Q

The formula for velocity in waves

A

Velocity= frequency*wavelength

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Q

The formula for frequency

A

f=1/Time

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Q

Amount of energy transferred= …?

A

Work done

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Q

Work done unit

A

J

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Q

Work done formula and unit

A

Work done= Force*Distance J

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Q

Unit of power

A

Watts W

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Q

The formula for power and the unit

A

Power= Workdone/Time taken

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Q

How many Watts is 1 Kilowatt?

A

1000 watts

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Q

Power equation 2

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A

Energy transformed/Time taken

Q

The formula for mass in the kinetic energy equation

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A

Mass= 2KE/V^2

Q

Unit of frequency

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A

Hertz