Name: _________________________________________Period:___________Date:_______________
APY1 SHM and Waves Review_2015
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. The graph represents the simple harmonic motion of a mass on a spring.
Which arrow indicates the amplitude of the motion?
a. A
b. B
c. C
d. D
____
2. Trevor places a mass on a spring. When he releases it, the mass and spring
move in simple harmonic motion. How could Trevor increase the amplitude of the motion?
a. He could use a longer spring.
c. He could use a stiffer spring.
b. He could use a smaller mass.
d. He could pull the mass down farther.
____
3. Yung hangs a mass from a rod, sets the pendulum in simple harmonic motion, and determines the period of the
pendulum. How could Yung decrease the period of the pendulum?
a. He could use a longer rod.
c. He could use a larger mass.
b. He could use a shorter rod.
d. He could use a smaller mass.
____
4. As a pendulum moves closer to the equilibrium position, how do the velocity, acceleration, and force change?
a. The velocity decreases, the acceleration decreases, and the net force decreases.
b. The velocity increases, the acceleration decreases, and the net force decreases.
c. The velocity increases, the acceleration increases, and the net force decreases.
d. The velocity decreases, the acceleration increases, and the net force increases.
____
5. A cord of fixed length and uniform density, when held between two fixed points under tension T, vibrates with a
fundamental frequency f. If the tension is doubled, the fundamental frequency is (1984 b 40)
a. 2f
b.
c. f
d.
e.
f
f
2f
2
2
____
6. Two wave pulses. each of wavelength i., are traveling toward
each other along a rope as shown above. When both pulses are
in the region between points X and Y. which are a distance i.
apart. the shape of the rope (1988 b 28)
a.
b.
c.
d.
Use the information below to answer the next two questions
A standing wave of frequency 5 hertz is set up on a string 2 meters long
with nodes at both ends and in the center, as shown above.
____
____
7. The speed at which waves propagate on the string is (1993 b 27)
a.
0.4 m/s
b. 2.5 m/s
c. 5 m/s
d.
10 m/s
e.
20 m/s
8. The fundamental frequency of vibration of the string is (1993 b 28)
a. I Hz
b. 2.5 Hz
c. 5 Hz
d. 7.5 Hz
e.
10 Hz
Name: _________________________________________Period:___________Date:_______________
____
____
9. In the Doppler effect for sound waves, factors that affect the frequency that the observer hears include which of the
following? (1993 b 58)
I. The speed of the source
II. The speed of the observer
III. The loudness of the sound
a. I only
b. III only
c. I and II only
d. II and III only e. I, II, and III
10. The figure above shows two wave pulses that are
approaching each other. Which of the following best
shows the shape of the resultant pulse when the centers
of the pulses, points P and Q. coincide? (1993 b 59)
a.
____
b.
c.
d.
11.
A small vibrating object on the surface of a ripple tank is the source of waves of
frequency 20 Hz and speed 60 cm/s. If the source S is moving to the right, as
shown above, with speed 20 cm/s, at which of the labeled points will the frequency
measured by a stationary observer be greatest? (1998 b 49)
a. A
c. C
b. B
d. D
Free Response
1. A block of mass M is resting on a horizontal, frictionless table and is attached as shown above to a relaxed spring of spring constant k. A second
block of mass 2M and initial speed vo collides with and sticks to the first
block Develop expressions for the following quantities in terms of M, k,
and vo
a.
v, the speed of the blocks immediately after impact
b.
x, the maximum distance the spring is compressed
c.
T, the period of the subsequent simple harmonic motion
Name: _________________________________________Period:___________Date:_______________
2. The wave below is formed on a string
Name: _________________________________________Period:___________Date:_______________
APY1 SHM and Waves Review_2015
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
B
D
B
B
B
B
D
B
C
A
C
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
1