For each of the following uncertainties, state how many significant figures are

Question

For each of the following uncertainties, state how many significant figures are given. If this is greater than 1, round to the correct number of significant figures. Include units.

a) ± 0.877 m/s2

b) ± 2.1 V

c) ± 6 x 10-9 m

d) ± 10.01 C

e) ± 400 kg m/s2 3.

2. Write each of the following in standard format.

a) 6201 ± 300 kg

b) 97 cm ± 22 cm

c) 0.0000009215 ± 0.0000005641 m

d) between 92 V and 135 V

e) 12,645,123 m ± 52 km

4. Assume each of the following quantities is given as the final result in a measurement of the acceleration due to gravity, g. Do the quantities follow a standard format (yes or no)? If not, why not? (Note: cgs or mks units are ok.) a) g = 751 ± 30 cm/s2

b) g = 9.81

c) g = 9 ± 3 m/s2

d) g = 8.23435 m/s2

e) g = (1.01 ± 0.03) x 103 cm/s2

Explanation / Answer

Here is a slightly more understandable way of looking at Significant figures.

I think this should help you solve your questions. Let me know if you need further help.

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