gonzales (pag757) – Postlab 1 – Lyon – (52635)
1
This
printout
should
have
15
questions.
Multiplechoice questions may continue on
the next column or page – find all choices
before answering.
This postlab 1 assignment is due by your
next lecture at 8AM. The questions cover ex
periment 1.
001
(part 1 of 2) 10.0 points
Can a measurement be precise but inaccu
rate?
1.
No, precision and accuracy are the same
thing
2.
Yes; accuracy is a tradeoff for precision
3.
Yes, if the values are close together but
not near the true value
correct
4.
No, if the data is precise it must also be
accurate
Explanation:
002
(part 2 of 2) 10.0 points
Can a measurement be accurate but impre
cise?
1.
Yes, if the values are scattered, but aver
age to the true value
correct
2.
No, if the data is accurate it must also be
precise
3.
Yes; precision is a tradeoff for accuracy
4.
No, precision and accuracy are the same
thing
Explanation:
003
(part 1 of 4) 10.0 points
Determine the number of significant digits in
5
.
12
×
10

6
.
Correct answer: 3.
Explanation:
When a number is written in scientific no
tation, all the digits in the coefficient are sig
nificant.
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 Spring '10
 Lyon
 Numerical digit, Decimal, 1 kg, 1 m, 1.8 kg

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