1.1.5 Weights, Measures & Conversion Flashcards by Alex Hooker | Brainscape

Q

What are S I units?

A

International system of units.

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Q

What is the SI measure for length?

A

Metre.

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Q

What is the SI measure for mass?

A

KG.

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Q

What is the SI measure for electric current?

A

Ampere.

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Q

What is the SI measure for thermodynamic?

A

Kelvin.

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Q

What is the SI measure for plain angles?

A

Radians.

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Q

What is the SI measure for luminous intensity?

A

Candela.

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Q

What is the prefix of measurement that is 10³?

A

Kilo.

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Q

What is the prefix of measurement that is 10‾³?

A

Milli.

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Q

What is the prefix of measurement that is 10‾⁶?

A

Micro.

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Q

What is the prefix of measurement that is 10‾⁹?

A

Nano.

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Q

What is the prefix of measurement that is 10‾¹²?

A

Pico.

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Q

What is the SI measure for velocity?

A

M/S.

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Q

What is the SI measure for acceleration?

A

M/S².

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Q

What is the SI measure for angular velocity?

A

Rad/s.

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Q

What is the SI measure for frequency?

A

Hertz (Hz=1/s).

Q

What is the SI measure for density?

A

kg/m³.

Q

What is the SI measure for momentum?

A

kg m/s.

Q

What is the SI measure for force?

A

Newtons. (Kgm/s²)

Q

What is the SI measure for energy?

A

Joule.

Q

What is the SI measure for power?

A

Watt.

Q

What is the SI measure for pressure?

A

N/M² (pascals).

Q

Which one is correct, Nm or N m?

A

N m as you should always leave a space between the multipliers.

Q

How do you convert from inches to mm?

A

x25.4

Q

How do you convert from m to inches?

A

x39.37

Q

How do you convert from pounds to kilos?

A

x0.45

Q

How do you convert from imp galls to litres?

A

x4.5

Q

How do you convert from bar to psi?

A

x14.5

Q

How do you convert from lbf to N?

A

x4.45

Q

What is a knot = in m/s, kmh and mph

A

5148 m/s
85 kmh
15 mph.

Q

What is the equation for relative density?

A

Density of a substance divided by Density of water (at the same temp.