Chapter 01 - Introduction 1-1 Chapter 01 Introduction Multiple Choice Questions 1. A student of physics watching the Star Wars films knows that according to the laws of physics A. the Rebel heroes can see the flash of an explosion in space. B. the Rebel heroes can hear the sound of an explosion in space. C. the Rebel heroes can hear each other over their radios in space. D. the Rebel heroes can see the flash of an explosion in space and the Rebel heroes can hear each other over their radios in space. E. the Rebel heroes can see the flash of an explosion in space and the Rebel heroes can hear the sound of an explosion in space. Section: 01.02 Talking Physics 2. In everyday language, speed and velocity are synonyms, but in physics A. velocity has only magnitude. B. speed has only direction. C. velocity has magnitude and direction. D. speed has magnitude and direction. E. velocity has only direction. Section: 01.02 Talking Physics 3. In everyday language, power and force are similar, but in physics A. force has only magnitude. B. power has only direction. C. force has magnitude and direction. D. power has magnitude and direction. E. None of these answers are correct. Section: 01.02 Talking Physics
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Chapter 01 - Introduction
1-1
Chapter 01
Introduction
Multiple Choice Questions
1. A student of physics watching the Star Wars films knows that according to the laws of
physics
A. the Rebel heroes can see the flash of an explosion in space.
B. the Rebel heroes can hear the sound of an explosion in space.
C. the Rebel heroes can hear each other over their radios in space.
D. the Rebel heroes can see the flash of an explosion in space and the Rebel heroes can hear
each other over their radios in space.
E. the Rebel heroes can see the flash of an explosion in space and the Rebel heroes can hear
the sound of an explosion in space.
Section: 01.02 Talking Physics
2. In everyday language, speed and velocity are synonyms, but in physics
A. velocity has only magnitude.
B. speed has only direction.
C. velocity has magnitude and direction.
D. speed has magnitude and direction.
E. velocity has only direction.
Section: 01.02 Talking Physics
3. In everyday language, power and force are similar, but in physics
A. force has only magnitude.
B. power has only direction.
C. force has magnitude and direction.
D. power has magnitude and direction.
E. None of these answers are correct.
Section: 01.02 Talking Physics
Chapter 01 - Introduction
1-2
4. Algebraic symbols in physics equations represent physical quantities, therefore
A. the symbols represent numbers only.
B. the symbols represent numbers and units.
C. the symbols consist of units only.
D. the symbols are only abstract.
E. the symbols are only imaginary.
Section: 01.02 Talking Physics
5. The last page of a book is numbered 814 and the book is 3.00 cm thick. What is the average
thickness of each page?
A. 2.54 103 cm
B. 2.54 10-3
cm
C. 7.37 10-3
cm
D. 3.92 10-3
cm
Section: 01.03 The Use of Mathematics
6. The diameter of a circle is doubled. By what factor is the area changed?
A. 2
B. 2
C. 4
D. 4
E. 1
Section: 01.03 The Use of Mathematics
7. The radius of a circle is increased by 5%. The percentage increase of the circumference is
A. 5%.
B. 10%.
C. 12%.
D. 16%.
Section: 01.03 The Use of Mathematics
Chapter 01 - Introduction
1-3
8. The radius of a circle is increased by 5%. The percentage increase of the area is
A. 5%.
B. 10%.
C. 12%.
D. 16%.
Section: 01.03 The Use of Mathematics
9. The radius of a circle is tripled. By what factor is the area changed?
A. 3
B. 6
C. 9
D. 12
Section: 01.03 The Use of Mathematics
10. What is the percentage increase in size when ordering a 14 inch rather than a 12 inch
pizza?
A. 16%
B. 26%
C. 36%
D. 46%
Section: 01.03 The Use of Mathematics
11. By what factor larger is a 12 inch pizza than a 10 inch pizza?
A. 1.2
B. 1.1
C. 1.4
D. 1.6
Section: 01.03 The Use of Mathematics
Chapter 01 - Introduction
1-4
12. If the surface area of a sphere is increased by a factor of 3, by what factor does the radius
of the sphere change?
A. 1.14
B. 1.73
C. 2.00
D. 2.24
Section: 01.03 The Use of Mathematics
13. If the surface area of a sphere is increased by 16%, by what percentage has the radius
been changed?
A. 16%
B. 8.1%
C. 7.7%
D. 12%
Section: 01.03 The Use of Mathematics
14. The volume of a sphere is 8.00 m3. The radius of the sphere is
A. 1.24 m.
B. 2.00 m.
C. 2.65 m.
D. 3.00 m.
Section: 01.03 The Use of Mathematics
15. The radius of a sphere is 2.00 m. The surface area of the sphere is
A. 36.7 m2.
B. 50.3 m2.
C. 72.5 m2.
D. 75.0 m2.
Section: 01.03 The Use of Mathematics
Chapter 01 - Introduction
1-5
16. By what factor does the volume of a cube increase if the length of the edges are doubled?
A. 2
B. 4
C. 6
D. 8
Section: 01.03 The Use of Mathematics
17. By what factor does the volume of a cube increase if the lengths of the edges are tripled?
A. 6
B. 9
C. 3
D. 27
Section: 01.03 The Use of Mathematics
18. The side of a cube is decreased by 6%. The percentage decrease of the volume of the cube
is
A. 6%.
B. 9%.
C. 12%.
D. 17%.
Section: 01.03 The Use of Mathematics
19. If the length of a box is reduced by one-third and the width and height are doubled, by
what factor has the volume changed?
A. 4/3
B. 2/3
C. 3/4
D. 3/2
Section: 01.03 The Use of Mathematics
Chapter 01 - Introduction
1-6
20. The side of a cube is increased by 5%. The percentage increase of the surface area of the
cube is
A. 5%.
B. 10%.
C. 12%.
D. 16%.
E. 18%.
Section: 01.03 The Use of Mathematics
21. The price of gasoline goes up 6% on Monday night and then goes down 7% today. What
is the net percentage change in the price of gasoline from Monday?
A. 1.0%
B. 2.0%
C. 1.4%
D. -1.0%
Section: 01.03 The Use of Mathematics
22. 1.0 kilometer equals ___________ nanometers.
A. 1.0 10+12
B. 1.0 10+6
C. 1.0 10+4
D. 1.0 10-3
Section: 01.04 Scientific Notation and Significant Figures