Measurement Flashcards

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1
Q

What is the SI unit and symbol for mass

A

Kilogram. kg

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2
Q

What is the SI unit and symbol for Time

A

Second. s

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3
Q

What is the SI unit and symbol for electric current

A

Ampere. A

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4
Q

What is the SI unit and symbol for temperature

A

Kelvin. K

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5
Q

What is the SI unit and symbol for luminous Intensity

A

Candela. Cd

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6
Q

What is the SI unit and symbol for amount of a substance

A

mole. mol

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7
Q

What is meant by a derived unit of symbol

A

The unit of symbol is derived from using composites of base units

Also called Composite symbols

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8
Q

What is the name of unit and the derived unit symbol for :

Area

A

Square meter. m^2

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9
Q

What is the name of unit and the derived unit symbol for :

Volume

A

Cubic metre. m^3

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10
Q

What is the name of unit and the derived unit symbol for :

Frequency

A

Hertz. Hz. s^-1

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11
Q

What is the name of unit and the derived unit symbol for :

Density

A

Kilogram per cubic metre. kgm^3

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12
Q

What is the name of unit and the derived unit symbol for :

Velocity

A

metres per second. ms^-1

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13
Q

What is the name of unit and the derived unit symbol for :

Acceleration

A

Metre per square second. ms^-2

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14
Q

What is the name of unit and the derived unit symbol for :

Force

A

Newton. N. kg m s^-2

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15
Q

What is the name of unit and the derived unit symbol for :

Pressure

A

Pascal. Pa. N m^-2

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16
Q

What is the name of unit and the derived unit symbol for :

Energy. Work. Heat

A

Joule. J. Nm

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17
Q

What is the name of unit and the derived unit symbol for :

Power

A

Watt. W. Js^-1

18
Q

What is the name of unit and the derived unit symbol for :

Quantity of electricity

A

Couloms. C. As

19
Q

What is the name of unit and the derived unit symbol for :

Potential difference

A

Volt. V. W A^-1

20
Q

What is the name of unit and the derived unit symbol for :

Electric resistance

A

Ohm. V A^-1

21
Q

What is the name of unit and the derived unit symbol for :

Heat capacity

A

Joule per Kelvin. J K^-1

22
Q

What is the name of unit and the derived unit symbol for :

Specific heat capacity

A

Joule per kilogram per Kelvin

J kg^-1 K^-1

23
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^12

A

tera. T

24
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^9

A

giga. G

25
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^6

A

mega. M

26
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^2

A

hecto. h

27
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

X 10

A

deca. da

28
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10 ^-12

A

pico. p

29
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^-9

A

nano. n

30
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^-6

A

micro. u

31
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^-3

A

milli. m

32
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^-2

A

centi. c

33
Q

A prefix of kilo, means that the answer is multiplied by 10^3

What is the prefix and it’s symbol for:

10^-1

A

deci. d

34
Q

Convert 3 cm^3 to m^3

A
3 x  (10^-2)^-3
3 x 10^-6 m3
35
Q

A cube with sides 3 cm each

Work out the volume of the cuve in m^3

A

3 x 3 x 3 x (10^-2)3

9 x 10^-6

36
Q

Convert 1m^2 to dm^2

A

1m = 10 dm
1 m^2 = 10^2 dm^2
= 100 dm^2

37
Q

Define significant figures

A

The significant figures of a number are those digits that carry meaning contributing to its precision

38
Q

What is the SI unit and symbol for length

A

Meter. m

39
Q

What is meant by “scientific notation”

A

It is a method used to express and work with very large or small numbers

40
Q

Def analogue meters

A

Are meters that display their readings