Measurement Flashcards
What is the SI unit and symbol for mass
Kilogram. kg
What is the SI unit and symbol for Time
Second. s
What is the SI unit and symbol for electric current
Ampere. A
What is the SI unit and symbol for temperature
Kelvin. K
What is the SI unit and symbol for luminous Intensity
Candela. Cd
What is the SI unit and symbol for amount of a substance
mole. mol
What is meant by a derived unit of symbol
The unit of symbol is derived from using composites of base units
Also called Composite symbols
What is the name of unit and the derived unit symbol for :
Area
Square meter. m^2
What is the name of unit and the derived unit symbol for :
Volume
Cubic metre. m^3
What is the name of unit and the derived unit symbol for :
Frequency
Hertz. Hz. s^-1
What is the name of unit and the derived unit symbol for :
Density
Kilogram per cubic metre. kgm^3
What is the name of unit and the derived unit symbol for :
Velocity
metres per second. ms^-1
What is the name of unit and the derived unit symbol for :
Acceleration
Metre per square second. ms^-2
What is the name of unit and the derived unit symbol for :
Force
Newton. N. kg m s^-2
What is the name of unit and the derived unit symbol for :
Pressure
Pascal. Pa. N m^-2
What is the name of unit and the derived unit symbol for :
Energy. Work. Heat
Joule. J. Nm
What is the name of unit and the derived unit symbol for :
Power
Watt. W. Js^-1
What is the name of unit and the derived unit symbol for :
Quantity of electricity
Couloms. C. As
What is the name of unit and the derived unit symbol for :
Potential difference
Volt. V. W A^-1
What is the name of unit and the derived unit symbol for :
Electric resistance
Ohm. V A^-1
What is the name of unit and the derived unit symbol for :
Heat capacity
Joule per Kelvin. J K^-1
What is the name of unit and the derived unit symbol for :
Specific heat capacity
Joule per kilogram per Kelvin
J kg^-1 K^-1
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^12
tera. T
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^9
giga. G
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^6
mega. M
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^2
hecto. h
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
X 10
deca. da
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10 ^-12
pico. p
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^-9
nano. n
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^-6
micro. u
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^-3
milli. m
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^-2
centi. c
A prefix of kilo, means that the answer is multiplied by 10^3
What is the prefix and it’s symbol for:
10^-1
deci. d
Convert 3 cm^3 to m^3
3 x (10^-2)^-3 3 x 10^-6 m3
A cube with sides 3 cm each
Work out the volume of the cuve in m^3
3 x 3 x 3 x (10^-2)3
9 x 10^-6
Convert 1m^2 to dm^2
1m = 10 dm
1 m^2 = 10^2 dm^2
= 100 dm^2
Define significant figures
The significant figures of a number are those digits that carry meaning contributing to its precision
What is the SI unit and symbol for length
Meter. m
What is meant by “scientific notation”
It is a method used to express and work with very large or small numbers
Def analogue meters
Are meters that display their readings
