1.1.5 Weights, Measures & Conversion Flashcards by Alex Hooker

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?

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A

Hertz (Hz=1/s).

Q

What is the SI measure for density?

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A

kg/m³.

Q

What is the SI measure for momentum?

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A

kg m/s.

Q

What is the SI measure for force?

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A

Newtons. (Kgm/s²)

Q

What is the SI measure for energy?

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A

Joule.

Q

What is the SI measure for power?

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A

Watt.

Q

What is the SI measure for pressure?

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A

N/M² (pascals).

Q

Which one is correct, Nm or N m?

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A

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

Q

How do you convert from inches to mm?

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A

x25.4

How do you convert from m to inches?

x39.37

How do you convert from pounds to kilos?

x0.45

How do you convert from imp galls to litres?

x4.5

How do you convert from bar to psi?

x14.5

How do you convert from lbf to N?

x4.45

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

0. 5148 m/s 1. 85 kmh 1. 15 mph.

What is the equation for relative density?

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