Units of measurement Flashcards

1
Q

What is a quantity?

A

Anything that can be measured

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2
Q

What is a unit?

A

Used as a standard for measurement of the same kind of quantity that is defined by convention or by law (whatever that means)

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3
Q

What are the 2 types of quantities?

A

Base or fundamental- cannot be made up of any other quantity( there are 5 of them that correspond with S.I units)
Derived- composed of 1 or more base quantities together or sometimes other derived quantities. (there’s like infinite as Hank said- area, volume, force etc.)

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4
Q

Length (l) in S.I unit is?

A

Metre (m)

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5
Q

Time (t) in S.I unit is?

A

second (s)

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6
Q

Mass (m) in S.I unit is?

A

Kilogram (kg)

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7
Q

Temperature (T- capital t) in S.I units is?

A

Kelvin (K- capital k)

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8
Q

Electric Current (I- capital i) in S.I unit is?

A

Ampere (A- capital a)

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9
Q

What is the numerical value for Mega (M)

A

10 to the power of 6

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10
Q

What is the numerical value for Kilo (K)

A

10 to the power of 3

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11
Q

What is the numerical value for Centi (C)

A

10 to the power of -2

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12
Q

What is the numerical value for Milli (m- only common letter)

A

10 to the power of -3

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13
Q

What is the numerical value for Micro (M)

A

10 to the power of -6

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