THIRD SET OF QUESTIONS
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SET 3: Question 1 of 12
How many µm are there in 70 mm?
Type in all zeros, eg 0.00000673
µm
70 mm is the same length as 70000 µm.
1 mm = 10-3m
1 µm = 10-6m
Thus:
1 millimetre is 10-3 times ie 103 times larger than a micrometre.
10-6
70 mm = 70 x 1000 µm = 70000 µm
No, that is not the correct answer.
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SET 3: Question 2 of 12
How many nm are there in 2 mm?
Type in all zeros, eg 0.00000673
2 mm is the same length as 2000000 nm.
1 mm = 10-3m
1 nm = 10-9m
Thus:
1 millimetre is 10-3 times ie 106 times larger than a nanometre.
10-9
2 mm = 2 x 1000000 nm = 2000000 nm
No, that is not the correct answer.
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SET 3: Question 3 of 12
How many Angstroms are there in 4 mm?
Type in all zeros, eg 0.00000673
4 mm is the same length as 40000000 Å.
1 mm = 10-3m
1 Å = 10-10m
Thus:
1 millimetre is 10-3 times ie 107 times larger than an Angstrom.
10-10
4 mm = 4 x 10000000 Å= 40000000 Å
No, that is not the correct answer.
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SET 3: Question 4 of 12
How many mm are there in 760 µm?
Type in all zeros, eg 0.00000673
There are 0.76 mm in 760 µm.
1 mm = 10-3m
1 µm = 10-6m
Thus:
1 micrometre is 10-3 times ie 103 times smaller than a millimetre.
10-6
760 µm = 760 / 1000 mm = 0.76 mm
No, that is not the correct answer.
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SET 3: Question 5 of 12
How many mm are there in 20 nm?
Type in all zeros, eg 0.00000673
There are 0.00002 mm in 20 nm.
1 mm = 10-3m
1 nm = 10-5m
Thus
1 nanometre is 10-3 times ie 10-6times smaller than a millimetre.
10-9
20 nm = 20/1000000 mm = 0.00002 mm
No, that is not the correct answer.
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SET 3: Question 6 of 12
How many mm are there in 2500 Å?
Type in all zeros, eg 0.00000673
There are 0.00025 mm in 2500 Å
1 mm = 10-3m
1 Å = 10-10m
Thus:
1 Angstrom is 10-3 times ie 107 times smaller than a millimetre.
10-10
2500 Å= 2500 / 10000000 mm = 0.00025 mm
No, that is not the correct answer.
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SET 3: Question 7 of 12
How many nm are there in 5 µm?
Type in all zeros, eg 0.00000673
There are 5000 nm in 5 µm.
1 µm = 10-6m
1 nm = 10-9m
Thus:
1 micrometre is 10-6 times ie 103 times larger than a nanometre.
10-9
5 µm = 5 x 1000 nm = 5000 nm
No, that is not the correct answer.
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SET 3: Question 8 of 12
How many Å are there in 0.4 µm?
Type in all zeros, eg 0.00000673
There are 4000 Å in 0.4 µm
1 µm = 10-6m
1 Å = 10-10m
Thus:
1 micrometre is 10-6 times ie 104 times larger than an Angstrom.
10-10
0.4 µm = 0.4 x 10000 Å = 4000 Å
No, that is not the correct answer.
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SET 3: Question 9 of 12
How many µm are there in 7000 nm?
Type in all zeros, eg 0.00000673
There are 7 µm in 7000 nm.
1 µm = 10-6m
1 nm = 10-9m
Thus:
1 nanometre is 10-6 times ie 103 times smaller than a micrometre.
10-10
7000 nm = 7000 / 1000 µm = 7µm;
No, that is not the correct answer.
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SET 3: Question 10 of 12
How many µm are there in 500 Å?
Type in all zeros, eg 0.00000673
There are 0.05 µm in 500 A.
1 µm = 10-6m
1 Å = 10-10m
Thus:
1 Angstrom is 10-6 times ie 104 times smaller than a micrometre..
10-10
500 Å = 500 / 10000 µm = 0.05 µm
No, that is not the correct answer.
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SET 3: Question 11 of 12
How many Å are there in 7.5 nm?
Type in all zeros, eg 0.00000673
There are 75 Å in 7.5 nm.
1 nm = 10-9m
1 Å = 10-10m
Thus:
1 nanometre is 10-2 times ie 10 times larger than an Angstrom.
10-10
7.5 nm = 7.5 x 10 Å = 75 Å
No, that is not the correct answer.
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SET 3: Question 12 of 12
How many nm are there in 8 Å?
Type in all zeros, eg 0.00000673
There are 0.8 nm in 8 Å,
1 nm = 10-9m
1 Å = 10-10m
Thus:
1 Angstrom is 10-9 times ie 10 times smaller than a nanometre.
10-10
8 Å = 8 / 10 nm = 0.8 nm
No, that is not the correct answer.
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