Other
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1. |
Figure 1
Write the letters A to N is the box below. Beside
each letter, write the word or phrase that corresponds to the labels
in Figure 1.
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2. |
Write
the letters (a) to (h) in the box below. Beside each letter, write the
word or phrase that best completes the blank(s).
a. The type of vibration experienced by
a simple pendulum is called ____________________, which means that the
motion of the pendulum is ____________________ to the rest axis.
b. When a crest meets a trough of equal size, the
result is a(n) ____________________. This type of interference is called
____________________.
c. A compression travelling outward from
a tuning fork is followed by a(n) ____________________.
d.
During sound interference, a node is produced when ____________________.
e.
The unit of sound intensity level is named after ____________________.
f.
The bending of light as it passes from one material into another is
called ____________________. The reason this bending occurs is ____________________.
g.
The set of colours visible to the human eye is called the ____________________.
The colours, in order of highest to lowest wavelength, are ____________________.
h.
The visible spectrum is part of a larger set of waves called the ____________________.
Two examples of waves whose frequencies exceed the frequency of visible
light are ____________________.
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3. |
Write
the letters (a) to (h) in the box below. Beside each letter, write the
letter from A to O that corresponds to each of the terms listed below.
a.
antinode
b. compression
c.
audible range of a bat
d. normal
e.
critical angle
f. hologram
g.
diffraction
h. transmitted first voice message using radio
waves
A part of a longitudinal
wave
B part of a transverse wave
C
position of maximum amplitude in a standing wave
D position of minimum
amplitude in a standing wave
E 20 Hz to 20 kHz
F 1000 Hz to 120 kHz
G
another word for plane
H another word for perpendicular
I
maximum angle of incidence in air
J angle beyond which light reflects inside a medium
K bending of light as it travels from one medium
into another
L bending of light as it passes through a narrow
opening
M a three-dimensional laser image
N
Marconi
O Fessenden
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Modified True/False
Indicate
whether the statement is true or false. If false, change the identified
word or phrase to make the statement true.
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4. |
As
the length of a simple pendulum increases, the frequency of vibration
decreases. ____________________
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5. |
As
the amplitude of the pulse on a coiled spring increases, the speed of
a pulse along the coil increases. ____________________
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6. |
The
amount of diffraction of waves through an opening increases as the frequency
of the waves increases. ____________________
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7. |
In
a two-source interference pattern, the distance between the nodal lines
increases as the wavelength of the waves increases. ____________________
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8. |
A
rarefaction is the part of a transverse wave where the particles
are close together. ____________________
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9. |
All
sound is produced by vibrating objects. ____________________
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10. |
The
prefix ultra means “lower than.” ____________________
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11. |
Diffraction is a wave property exhibited by both sound and light.
____________________
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12. |
The
speed of EM radiation is constant at 3.00 ´ 108 m/s in all media.
____________________
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13. |
An
incident ray aimed along the normal to a mirror reflects back onto
itself. ____________________
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14. |
If
the angle of incidence in air is 44° and the angle of refraction in a medium is 22°,
the index of refraction of the medium is 2.0. ____________________
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15. |
Alexander Graham Bell designed the original technology to
send radio signals across the Atlantic Ocean. ____________________
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Multiple Choice
Identify
the letter of the choice that best completes the statement.
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16. |
When
a crest travelling in one direction on a rope meets a crest travelling
in the opposite direction, the result is
a. |
a
standing wave |
c. |
a
loop |
b. |
constructive
diffraction |
d. |
constructive
interference |
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17. |
If
the frequency of a source of waves in a medium changes from f
to 2f, the wavelength of the waves
a. |
changes
from l
to 2l |
b. |
changes from l to l/2 |
c. |
changes from l to l/4 |
d. |
remains the same because the speed in the
medium is constant |
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18. |
If
the fundamental frequency of a standing wave is 100.0 Hz, the frequency
of the second harmonic is
a. |
200.0
Hz |
c. |
400.0
Hz |
b. |
300.0
Hz |
d. |
none
of these |
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19. |
Figure 2
In
Figure 2, where the critical angle is 45°,
a. |
ray A undergoes total internal reflection,
and ray B emerges into the air |
b. |
ray B undergoes total internal reflection,
and ray A emerges into the air |
c. |
both rays undergo total internal reflection |
d. |
both rays undergo partial reflection in
the medium and partial emergence in the air |
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20. |
The
parabolic reflectors that receive radio waves from distant stars and
galaxies are much larger than TV satellite dishes because the radio
waves have
a. |
high frequencies |
c. |
long wavelength |
b. |
high
energies |
d. |
high
speed |
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21. |
Visible light is not used to transmit signals to and from TV communications
satellites because
a. |
it
does not allow viewing at night |
b. |
it requires huge, land-based satellite dishes
because of its long wavelengths |
c. |
it cannot travel through clouds and other
obstructions |
d. |
it cannot travel in the vacuum of space |
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22. |
The
phenomenon that explains how holograms are made is
a. |
total
internal reflection |
c. |
interference |
b. |
diffraction |
d. |
refraction |
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