Conversions and measurement Flashcards
What is the base measurement for time?
Seconds
s
What is mass?
The amount of matter in an object
What is volume?
The amount of space an object takes up
What is density?
Mass per unit volume
The distance between particles in an object
What is the base measurement for length?
Meters
What is the base measurement for electric current?
Ampere
A
What is the base measurement for temperature?
Kelvin
K
What is the base measurement for light intensity?
Candela
cd
What is the base measurement for the amount of matter in a substance?
Mole
mol
What is the base measurement for mass?
Kilogram
kg
What is the prefix for /1000?
Kilo
10^3
What is the prefix for /100 000?
Mega
10^6
What is the prefix for /100 000 000?
Giga
10^9
What is the prefix for x1000?
milli
10^-3
What is the prefix for x100 000?
micro
10^-6
What is the prefix for x100 000 000?
nano
10^-9
What is the prefix for da?
deka
What is the prefix for h?
hecto
What is the prefix for k?
kilo
What is the prefix for d?
deci
What is the prefix for c?
centi
What is the prefix for m?
milli
What is the prefix for μ?
micro
What is the prefix for n?
nano
What is the prefix for M?
Mega
What is the prefix for G?
Giga
What is metric measurement based on?
The number ten
What are derived units?
They are values that do not have base units, they can only measured by calculations.
What are the derived units?
Volume
Density
Speed
What is the measurement for volume?
Length x width x height
m^3
What is the measurement for density?
Mass / volume
g/cm^3
What is the measurement for speed?
Distance/time
km/h
What is scientific notation?
It is a way of writing very large and very small numbers
How do you write scientific notation?
Write the number as a decimal with a single digit before the comma
Write x10
The exponent will be however many places the comma jumped
If you have a really small decimal number to start with, your exponent will negative
How do you convert measurements?
If you are converting from a small unit to a bigger unit, divide.
If you are converting from a big unit to a small unit, multiply.
What is 0K in °C?
-273,15