Name: _Answer Key___
Ch. 20: 1 & 2 Questions
For multiple choice questions, highlight or bold the answer choice that you think is correct. For fill
in the blank questions, type your answer in the blank.
Consider the diagram below in order to answer questions #1-2.
1. The wavelength of the wave in the diagram above is given by letter __A_.
2. The amplitude of the wave in the diagram above is given by letter __D__.
3. Indicate the interval which represents one full wavelength.
a.
b.
c.
d.
a to c
b to d
a to g
c to g
4. A tennis coach paces back and forth along the sideline 10 times in 2 minutes. The frequency of her
pacing is ________.
a. 5.0 Hz
b. 0.20 Hz
c. 0.12 Hz
d. 0.083 Hz
5. Stan and Anna are conducting a slinky experiment. They are studying the possible effect of
several variables upon the speed of a wave in a slinky. Their data table is shown below. Fill in
the blanks in the table.
Medium
Wavelength
Frequency
Speed
Zinc, 1-in. dia. Coils
1.75 m
2.0 Hz
_3.5 m/s___
Zinc, 1-in. dia. Coils
_0.9 m_
3.9 Hz
3.51 m/s
Copper, 1-in. dia. coils
1.19 m
_2.1 Hz__
2.499 m/s
Copper, 1-in. dia. coils
0.60 m
4.2 Hz
__2.52__
Zinc, 3-in. dia. Coils
0.95 m
_2.2_
2.09 m/s
Zinc, 3-in. dia. Coils
_1.82
1.2 Hz
2.184 m/s
6. As the wavelength of a wave in a medium increases, its frequency will _____.
a. decrease
b. increase
c. remain the same
7. The speed of a wave depends upon ...
a.
b.
c.
d.
the properties of the medium through which the wave travels
the wavelength of the wave.
the frequency of the wave.
both the wavelength and the frequency of the wave.
8. Dawn and Aram have stretched a slinky between them and begin experimenting with waves. As the
frequency of the waves is doubled,
a.
b.
c.
d.
the wavelength is halved and the speed remains constant
the wavelength remains constant and the speed is doubled
both the wavelength and the speed are halved.
both the wavelength and the speed remain constant.
9. Is the following diagram showing a longitudinal wave or a transverse wave? Label A, B and C.
A
B
C
Answer:
(Transverse or Longitudinal) ___Longitudinal Wave____________________________
A represents ___compression_____________________________
B represents ___rarefaction_______________________________________
C represents _____wavelength___________________________________