Problem #1
Indicate how many significant figures there are in each of the following measured values.
Answer:
Problem #2
Calculate the answers to the appropriate number of significant figures.
Calculate the answers to the appropriate number of significant figures
Problem #4
Solve the following problems and report answers with appropriate number of significant digits.
(a) 6.201 cm + 7.4 cm + 0.68 cm +12.0 cm
(b) 1.6 km + 1.62 m +1200 cm
(c) 8.264 g - 7.8 g
(d) 10.4168 m - 6.0 m
(e) 12.00 m+15.001 kg
(f) 1.31 cm x 2.3 cm
(g) 5.7621 m x 6.201 m
(h) 20.2 cm : 7.41 s
(i) 40.002 g : 13.000005 g
Answer:
(a) 6.201 cm + 7.4 cm + 0.68 cm +12.0 cm = 26.281 cm = 26.3 cm
(b) 1.6 km + 1.62 m +1200 cm = 1203.22 m = 1.2 x 103 or 1.20 x 103 or 1203 m
(c) 8.264 g - 7.8 g = 0,464 g = 0.5 g
(d) 10.4168 m - 6.0 m = 4.4168 m = 4.4 m
(e) 12.00 m + 15.001 kg = can’t add m and kg
(f) 1.31 cm x 2.3 cm = 3.013 cm2 = 3.0 cm2
(g) 5.7621 m x 6.201 m = 35.7326 m2 = 35.73 m2
(h) 20.2 cm : 7.41 s = 2.72604 cm/s = 2.73 cm/s
(i) 40.002 g : 13.000005 g = 3.07707574 = 3.0771
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