1
what are the base units
length
mass
temp
time
Amount
Electric current
Luminous intensity
Uses units to convert to new units
Conversion factors- equivalencies used to change the unit
what is dimensional analysis
Based on multiples of 10
Established in France in 1795
International system of unit
what are si units
10
whats 5+5
what volume
amount of space something takes up
Ration that compares the mass of an object to its volume
Unit is mass/volume unit
density=mass/volume
what is density
Mega- 1000000
Giga -1000000000
Micro- 1/1000000
Nano -1/1000000000
Pico -1/1000000000000
what are some more of the prefixes
December 25th
when is Christmas
what is temperature
The measure of the average kinetic energy
Accuracy- how close you are to the real measurement
Precision- how close the set of measurements are close to each other
what is ht difference between accuracy and precision
A useful tool when too big or too small
Mx10n
what is the scientific notation
16
how old do you have to be to drive a car
what are the temperature conversions
C to F
c(9/5)+32
F to C
5/9(f-32)
C to K
C + 273
Amount of error divided by the accepted value times 100
Error- the difference between the accepted value
Use absolute value
what is percent error
heck no
is the earth flat
Capacity to do work or produce heat
what is energy
All non-zero digits do count
24=2
3.56=3
Leading 0 don't count
0.0025=2
Captive 0s do count
1502=4
1.008=4
what are significant figures
Combinations of the base units
what is a derived unit
France
where did the si units start