Chapter 01
Introduction
M
Multiple Choice Questions
1. A student of physics watching the Star Wars films knows that according to the laws of
ED
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
C
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.
O
Section: 01.02 Talking Physics
N
2. In everyday language, speed and velocity are synonyms, but in physics
N
A. velocity has only magnitude.
B. speed has only direction.
C. velocity has magnitude and direction.
O
D. speed has magnitude and direction.
E. velocity has only direction.
IS
Section: 01.02 Talking Physics
SE
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.
U
R
Section: 01.02 Talking Physics
1-1
, 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.
M
D. the symbols are only abstract.
E. the symbols are only imaginary.
ED
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?
C
A. 2.54 103 cm
B. 2.54 10-3 cm
C. 7.37 10-3 cm
O
D. 3.92 10-3 cm
N
Section: 01.03 The Use of Mathematics
N
6. The diameter of a circle is doubled. By what factor is the area changed?
A. 2
B. 2
O
C. 4
D. 4
E. 1
IS
Section: 01.03 The Use of Mathematics
SE
7. The radius of a circle is increased by 5%. The percentage increase of the circumference is
A. 5%.
B. 10%.
C. 12%.
U
D. 16%.
R
Section: 01.03 The Use of Mathematics
1-2
, 8. The radius of a circle is increased by 5%. The percentage increase of the area is
A. 5%.
B. 10%.
C. 12%.
M
D. 16%.
ED
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
C. 9
D. 12
O
Section: 01.03 The Use of Mathematics
N
10. What is the percentage increase in size when ordering a 14 inch rather than a 12 inch
pizza?
N
A. 16%
B. 26%
C. 36%
O
D. 46%
IS
Section: 01.03 The Use of Mathematics
11. By what factor larger is a 12 inch pizza than a 10 inch pizza?
SE
A. 1.2
B. 1.1
C. 1.4
D. 1.6
U
Section: 01.03 The Use of Mathematics
R
1-3
, 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
M
C. 2.00
D. 2.24
ED
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?
C
A. 16%
B. 8.1%
C. 7.7%
O
D. 12%
N
Section: 01.03 The Use of Mathematics
N
14. The volume of a sphere is 8.00 m3. The radius of the sphere is
A. 1.24 m.
B. 2.00 m.
O
C. 2.65 m.
D. 3.00 m.
IS
Section: 01.03 The Use of Mathematics
SE
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.
U
Section: 01.03 The Use of Mathematics
R
1-4