問題一覧
1
Write cultural measurement
cubits, foot, mile, span
2
10^6
micro
3
10'3
kilo
4
10^18
atto
5
Formula of distance
d = time * speed
6
10'15
peta
7
How mang quars in 1 liter
1.06
8
10'18
exa
9
New definition is the distance that light can travel in a vaccuum
meter
10
10^12
pico
11
10^2
centi
12
10'12
tera
13
A more modern , atomic reference is hoped for
kilogram
14
Exceptionally accurate,in fact redefining c, speed of light
meter
15
10^3
milli
16
10'9
giga
17
It s an experimental science
physics
18
Units of measurement
cultural
19
So accurate that it loses only 1 second in 30m years
meter
20
Ot is now tied to kr discharge
meter
21
10^15
femto
22
Originally tide of the length of the day
the second
23
Observe phenomena in nature
physics
24
10'6
mega
25
Hwow any grams in 1 pound
2.54
26
10^9
nano
27
The reference cylinder is kept in sevres, france
kilogram
28
Write the three fundamentals SI units
time, length, mass
29
How many cm in 1 inch
454