Size Units Flashcards
1
Q
Units of distance are based on…
A
the metre
2
Q
The distances we are interested in are the…
A
metre, centimetre, millimetre, micrometre, and nanometre
3
Q
10mm =
A
1cm
4
Q
100cm =
A
1m
5
Q
Metre’s prefix
A
m
6
Q
Centimetre’s prefix
A
cm
7
Q
Millimetre’s prefix
A
mm
8
Q
Micrometre’s prefix
A
μm
9
Q
Nanometre’s prefix
A
nm
10
Q
Insects and small plants are often measured in…
A
millimetres
11
Q
How are cells and bacteria usually measured?
A
In micrometres
12
Q
How are tiny particles such as molecules and viruses measured?
A
In nanometres
13
Q
To go between units, we multiply and divide by…
A
Factors
14
Q
1m =
A
100cm
15
Q
100cm =
A
1000mm
16
Q
1m x 1000 =
A
1000mm
17
Q
How many μm are in 1 millimetre?
A
1000μm
18
Q
1 metre = how many μm?
A
1,000,000μm
19
Q
How many μm are there in 0.04m?
A
40,000μm because 0.04 = 4/100 = 4cm = 40mm = 40,000μm
