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Physics 9 Chapter 1 - Physical Quantities and Measurements - 25
1.
How is 1.35 rounded?
a) 1.3
b) 1.36
c) 1.44
d) 1.4
2.
How is 1.45 rounded?
a) 1.34
b) 1.4
c) 1.5
d) 1.4
3.
Amount of a substance in terms of numbers is measured in...............?
a) Kilogramme
b) Mole
c) Newton
d) Gram
4.
What are the significant figures in 1.009 m?
a) 1
b) 2
c) 3
d) 4
5.
What are the significant figures in 0.00450 kg?
a) 3
b) 5
c) 7
d) 4
6.
What are the significant figures in 1.66x10
-27
kg?
a) 27
b) 5
c) 4
d) 3
7.
What are the significant figures in 2001 s?
a) 4
b) 3
c) 1
d) 2
8.
Which of the following quantities have three significant figures?
a) 3.0066 m
b) 5.05x10
-27
kg
c) 0.00309 kg
d) 2001 s
9.
Which of the following quantities have three significant figures?
a) 2001 s
b) 301.0 s
c) 3.0066 m
d) 5.05x10^
-27
kg
10.
A chocolate wrapper is 6.7 cm long and 5.4 cm wide. Calculate its area?
a) 12.4 cm
2
b) 37 cm
2
c) 12.1 cm
2
d) 36 cm^
2
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