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Avance 2013-2014 Physics Q4 Study Guide
Section 1 CST
1. A sound wave is produced in a metal cylinder by striking one end. Which of the following occurs as
the wave travels along the cylinder?
a. its amplitude increases
b. its frequency increases
c. it transfers matter
d. it transfers energy
2. The graph below depicts the relationship between wave energy and wave amplitude.
How is the energy of the wave affected if the amplitude of the wave increases from 2 meters to 4
meters?
a. it is halved
b. it is doubled
c. it is quadrupled
d. it remains the same
3. A radio station transmits to a receiving antenna. The radio wave is a
a. sound wave
b. torsional wave
c. longitudinal wave
d. transverse wave
4.
A stretched spring attached to two fixed points is compressed on one end and released, as shown below.
Before
Release
After
Release
The resulting wave travels back and forth between the two fixed ends of the spring until it comes to a
stop. This mechanical wave is an example of a
A
transverse wave.
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Avance 2013-2014 Physics Q4 Study Guide
B longitudinal wave.
5.
6.
C
superpositioned wave.
D
refracted wave.
One end of a horizontal string is caused
to oscillate vertically while the other end is attached to a fixed object. The wave that travels along the
string is an example of
A
an electromagnetic wave.
B
a transverse wave.
C
a microwave.
D
a longitudinal wave.
A sound wave traveling through a solid material has a frequency of 500 hertz. The wavelength
of the sound wave is 2 meters. What is the speed of sound in the material?
a. 250 m/s
7.
8.
10.
c. 1000m/s
d. 250,000m/s
A tuning fork is used to produce sound waves with a frequency of 440 hertz. The waves
m
travel through the air at 344 . What is the
s
wavelength of the sound waves? A
0.15 m
B
0.39 m
C
0.78 m
D
1.28 m
A student shakes the end of a rope with a frequency of 1.5 Hz, causing waves with a wavelength of
0.8 m to travel along the rope. What is the velocity of the waves?
a. 1.0 m/s
9.
b. 500m/s
b. 1.6 m/s
c. 1.2 m/s
d. 0.53 m/s
What is the wavelength of a 264-Hz sound wave when the speed of sound is 345
A
0.77 m
B
1.31 m
C
6.09 m
D
9.11 m
Astronauts on the Moon would not be able to hear a landslide because
A
the lunar dust deadens sounds.
B
intensive sunlight destroys sound waves.
C
the magnetic field of the Moon is too weak to carry sound.
D
air molecules on the Moon are too far apart to carry sound.
m
?
s
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Avance 2013-2014 Physics Q4 Study Guide
11.
Sound waves cannot carry energy through
A water.
B
air.
C
a mirror.
D
a vacuum.
12. Where does visible light fall on the electromagnetic spectrum?
A
between x-rays and gamma rays
B
between short-wave radio and television
C
between infrared and ultraviolet
D
between microwaves and infrared
13. In a vacuum, radio waves, visible light, and x-rays all have the same
A
wavelength.
B
speed.
C
frequency.
D
energy.
Section 2 ch 16 light
14. What determines the color of light?
a. wavelength
c. surface
b. temperature
d. distance
15. Which of these colors of light has the longest wavelength?
a. black
c. green
b. violet
d. red
16. Which of these properties of light is a constant?
a. wavelength
c. frequency
b. speed in a vacuum
d. amplitude
17. The rate, in lumens, at which light is emitted from a lightbulb is the bulb’s ____.
a. luminous flux
c. frequency
b. illuminance
d. luminous intensity
18. Which best describes the relationship between distance and illuminance?
a. E r
b. E r2
1
r
1
d. E 2
r
c. E
Avance 2013-2014 Physics Q4 Study Guide
19. Very thin, white tissue paper can best be described as ____.
a. transparent
c. opaque
b. translucent
d. luminous
20. Materials that do not allow any transmission of light are described as ____.
a. transparent
c. opaque
b. translucent
d. luminous
21. The mixing of primary colors of light to produce other colors is a(n) ____ process.
a. refractive
c. subtractive
b. diffractive
d. additive
22. Combining the primary colors—red, blue, and green—forms ____ light.
a. no
c. shifted
b. white
d. reflected
23. Polarized light consists of waves ____ with a specific pattern.
a. fixed
c. oscillating
b. traveling
d. combining
Section 3 Refraction
24. Compared to its speed in air, the speed of light in glass is ____ .
a. the same
c. slower
b. faster
d. not measurable
25. Which of the following has the highest index of refraction?
a. a vacuum
c. diamond
b. air
d. float glass
26. For most practical purposes, the index of refraction of air is ____ .
a. 0
c. infinite
b. 1.00
d. equal to that of the other medium involved
27. The wavelength of light in a given material equals ____ .
a. the speed of light in the material times frequency
b. frequency times the period
c. the speed of light in the material divided by frequency
d. frequency divided by the speed of light in the material
28. Which expression equals the index of refraction of a given medium?
c
a.
c. c  vmedium
vmedium
b.
vmedium
c
d. vmedium  c
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Avance 2013-2014 Physics Q4 Study Guide
29. Refraction occurs when ____ .
a. light travels through the boundary of two media that have different indices of refraction
b. light strikes the boundary of two media that have the same indices of refraction
c. the angle of incidence equals zero
d. the angle of reflection equals zero
30. When light travels from one medium into a medium with a lower index of refraction, ____ .
a. the speed of light increases
b. the angle of refraction is smaller than the angle of incidence
c. the refracted light bends toward the normal
d. the angle of incidence equals the angle of refraction
31. The index of refraction of the transparent mineral beryl is approximately 1.6. Transparent quartz has an index
of 1.54. Diamond has an index of 2.42. Based on these facts, which statement is true? Assume light travels from
air into each substance.
a. All three minerals bend light to the same extent.
b. Quartz bends light more than beryl does.
c. Beryl bends light more than quartz does.
d. Both beryl and quartz bend light more than diamond does.
32. The image formed of an object when the object is more than twice the focal length from a convex lens is
____ .
a. real and smaller than the object
c. virtual and smaller than the object
b. real and larger than the object
d. virtual and larger than the object
Section 4 Electrostatics
33. An electroscope has an excess of 3.9108 electrons. What is the charge
on the electroscope?
A
1.61011 C
B
2.41011 C
C
4.11011 C
D
6.21011 C
34. How can acquiring charge be described at a microscopic level?
A
It is a process of balancing the charge on an atom.
B
It is a process of removing electrons from the nucleus.
C
It is a process of transferring electrons.
D
It is a process of creating charge.
Avance 2013-2014 Physics Q4 Study Guide
35. A lightning bolt transfers a charge of 17 C. How many electrons does the lightning bolt transfer if it strikes the
ground?
A
1.11018 electrons
B
2.71018 electrons
C
1.11020 electrons
D
2.71020 electrons
36. Which of the following summarizes Coulomb’s results?
A
F
1
r2
B
F
qA qB
r2
C
D
F  qA qB
F  r2
37. A charge, qA, experiences an attractive force of 1.5102 N as a result of a charge, qB, located 2.4 cm away. If qB
has a charge of 5.2106 C, what is the charge of qA? (K  9.0109 Nm2/C2)
A 1.3106 C
B 1.8106 C
C 3.1106 C
D 7.7106 C
38. Spheres A and B are located 4.0102 m apart.
If sphere A has a charge of 4.0106 C and sphere B has a charge of 2.0106 C, what is the magnitude of the
force of sphere B on sphere A?
A
4.5101 N
B
1.4102 N
C
1.7102 N
D
1.8102 N
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Avance 2013-2014 Physics Q4 Study Guide
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39. If sphere B in problem 8 is moved so it is only 2.0102 m from sphere A, how does the force
between the charges change?
A
multiplied by 2
B
multiplied by 4
C
divided by 2
D
divided by 4
40. The diagram shows three charged spheres.
Sphere A has a charge of 2.0106 C, sphere B has a charge of 3.0106 C, and sphere C has a
charge of 4.0106 C. What is the magnitude of the net force on sphere A? (rAB  2.0102 m
and rAC  2.0102 m)
A
1.4102 N
B
1.6102 N
C
2.0102 N
D
2.3102 N