For
COLLEGE PHYSICS
Explore and Apply
S ECOND E DITION
By
Eugenia Etkina
Matthew Blackman
Gorazd Planinsic
Alan Van Heuvelen
,College Physics: Explore and Apply, 2e (Etkina, Planinsic, and Van Heuvelen)
Chapter 1 Introduction
1.1 Conceptual Questions
1) In the product A, B, and C, the quantity A has 5 significant figures, B has 2 significant figures,
and C has 3 significant figures. How many significant figures does the product have?
A) 10
B) 5
C) 4
D) 3
E) 2
Answer: E
2) In the quotient , the quantity A has 5 significant figures, B has 2 significant figures, and C
has 3 significant figures. How many significant figures does the quotient have?
A) 2
B) 3
C) 4
D) 0
E) 1
Answer: A
3) How many significant figures are in the number 0.0037010?
A) eight
B) seven
C) six
D) five
E) four
Answer: D
4) How many significant figures are in the number 0.010?
A) four
B) three
C) two
D) one
Answer: C
5) How many significant figures are in the number 120.070?
A) three
B) four
C) five
D) six
Answer: D
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,6) The number of significant figures in 10001 is
A) two
B) three
C) five
D) six
Answer: C
7) The number of significant figures in 0.01500 is
A) two
B) three
C) four
D) five
Answer: C
8) The number of significant figures in 0.040 is
A) one
B) two
C) three
D) four
Answer: B
9) Which of the following numbers has 4 significant figures; which has 5 significant figures?
A) 3001
B) 0.00370
C) 4774.00
D) 29.290
Answer: (A) has 4 significant figures; (D) has 5 significant figures
10) In a parallel universe, the quantity π has the value 3.14049. Express π in that universe to
(A) four significant figures
(B) five significant figures
Answer: (A) 3.140; (B) 3.1405
11) A reasonable estimate for the mass of a typical female college student is
A) 300 kg
B) 200 kg
C) 150 kg
D) 50 kg
E) 20 kg
Answer: D
12) A reasonable estimate for the height of an ordinary adult male is
A) 50 cm
B) 70 cm
C) 200 cm
D) 300 cm
Answer: C
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, 13) A reasonable estimate for the mass of a typical new-born baby is
A) 1 kg
B) 3 kg
C) 10 kg
D) 20 kg
Answer: B
14) A reasonable estimate for the height of the walls of a room in an ordinary American home is
A) 10 m
B) 8 m
C) 2.5 m
D) 1.5 m
Answer: C
15) A reasonable estimate for the duration of a typical physics lecture is
A) 600 s
B) 1000 s
C) 3500 s
D) 10,000 s
Answer: C
16) A reasonable estimate for the mass of an ordinary passenger car is
A) 100 kg
B) 1000 kg
C) 5000 kg
D) 10,000 kg
Answer: B
1.2 Problems
1) What is the product of 12.56 and 2.12 expressed to the correct number of significant figures?
A) 27
B) 26.6
C) 26.23
D) 26.627
Answer: B
2) What is the quotient of 2.43 ÷ 4.561 expressed to the correct number of significant figures?
A) 5.3278 × 10-1
B) 5.328 × 10-1
C) 5.33 × 10-1
D) 5.3 × 10-1
Answer: C
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