Conversions and Order of magnitude Flashcards
1
Q
How many centimeters (cm) are in a meter?
A
“centi” = 1 / 100th
A hundred
100cm = 1m
2
Q
How many millimeters (mm) are in a meter?
A
“milli” = 1 / 1,000th
A thousand
1,000mm = 1m
3
Q
How many micrometers (μm) are in a meter?
A
“micro” = 1 / 1,000,000th
A million
1,000,000μm = 1m
4
Q
How many nanometers (nm) are in a meter?
A
“nano” = 1 / 1,000,000,000th
A billion
1,000,000,000nm = 1m
5
Q
How does the order of magnitude work?
A
Every order of magnitude is 10x greater than the one before.
10x = 1 order of magnitude 100x = 2 orders of magnitude
6
Q
How to calculate the order of magnitude?
A
Count the zeros
Bigger number divided by smaller number
One zero = 1 order of magnitude
Two zeros = 2 orders of magnitude
