# Physics Wave

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• Topic: Wave, Resonance, Standing wave
• Pages : 23 (5042 words )
• Published : May 22, 2011

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Chapter 11 Vibrations and Waves

Conceptual Questions

1) The time for one cycle of a periodic process is called the A) amplitude.
B) wavelength.
C) frequency.
D) period.

2) For a periodic process, the number of cycles per unit time is called the
A) amplitude.
B) wavelength.
C) frequency.
D) period.

3) For vibrational motion, the maximum displacement from the equilibrium point is called the
A) amplitude.
B) wavelength.
C) frequency.
D) period.

4) A mass on a spring undergoes SHM. When the mass is at its maximum displacement from equilibrium, its instantaneous velocity
A) is maximum.
B) is less than maximum, but not zero.
C) is zero.
D) cannot be determined from the information given.

5) A mass on a spring undergoes SHM. When the mass passes through the equilibrium position, its instantaneous velocity
A) is maximum.
B) is less than maximum, but not zero.
C) is zero.
D) cannot be determined from the information given.

6) A mass on a spring undergoes SHM. When the mass is at maximum displacement from equilibrium, its instantaneous acceleration
A) is a maximum.
B) is less than maximum, but not zero.
C) is zero.
D) cannot be determined from the information given

7) A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a minimum?
A) at either A or B
B) midway between A and B
C) one-fourth of the way between A and B
D) none of the above

8) A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a maximum?
A) at either A or B
B) midway between A and B
C) one-fourth of the way between A and B
D) none of the above

9) A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its potential energy is a minimum?
A) at either A or B
B) midway between A and B
C) one-fourth of the way between A and B
D) none of the above

10) A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its potential energy is a maximum?
A) at either A or B
B) midway between A and B
C) one-fourth of the way between A and B
D) none of the above

11) Doubling only the amplitude of a vibrating mass-and-spring system produces what effect on the system's mechanical energy?
A) increases the energy by a factor of two
B) increases the energy by a factor of three
C) increases the energy by a factor of four
D) produces no change

12) Doubling only the mass of a vibrating mass-and-spring system produces what effect on the system's mechanical energy?
A) increases the energy by a factor of two
B) increases the energy by a factor of three
C) increases the energy by a factor of four
D) produces no change

13) Doubling only the spring constant of a vibrating mass-and-spring system produces what effect on the system's mechanical energy?
A) increases the energy by a factor of two
B) increases the energy by a factor of three
C) increases he energy by a factor of four
D) produces no change

14) A mass oscillates on the end of a spring, both on Earth and on the Moon. Where is the period the greatest?
A) Earth
B) the Moon
C) same on both Earth and the Moon
D) cannot be determined from the information given

15) Increasing the spring constant k of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's mass m.)
A) The frequency increases.
B) The frequency...