Equation Symbols and Units Flashcards by N Cooke

Q

What is the unit for energy?

A

Joules, J

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Q

What is the unit usually used for mass?

A

kilograms, kg

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Q

What is the unit for specific heat capacity?

A

J/kg°C

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Q

What is the unit for efficiency?

A

% or it doesn’t have one

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Q

What is power measured in?

A

Watts, W

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Q

What is time usually measured in?

A

seconds, s

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Q

Which unit do electricity suppliers use for energy?

A

kWh

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Q

What is the unit for speed?

A

m/s

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Q

What is the symbol for speed?

A

v

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Q

What is the symbol for frequency?

A

f

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Q

What is frequency measured in?

A

Hertz, Hz

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Q

What is the symbol for wavelength?

A

λ

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Q

What is wavelength measured in?

A

metres, m

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Q

What is the unit for force?

A

Newtons, N

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Q

What is the unit for acceleration?

A

Metres per second squared, m/s²

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Q

What is the symbol for acceleration?

A

a

Q

What is the unit for velocity?

A

m/s

Q

What is the unit for weight?

A

Newtons, N

Q

What is the unit for gravitational field strength?

A

N/kg

Q

What is the symbol for spring constant?

A

k

Q

What is the unit for spring constant?

A

N/m

Q

What is the unit for work done?

A

Joules, J

Q

What is the gravitational field strength on earth?

A

10N/kg

Q

What is the symbol for momentum?

A

p

What is the unit for momentum?

kg m/s

What is the symbol for current?

I

What is the unit for current?

Amps

What is the symbol for charge?

Q

What is the unit for charge?

Coulombs, C

What is the unit for potential difference?

Volts, V

What is the unit for resistance?

Ohms, Ω