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- 1. Multiple Choice
Which wave in the diagram has the greatest wavelength?
1
2
3
4
- 2. Multiple Choice
which material does sound travel the fastest?
solid
liquid
gases
- 3. Multiple ChoiceAn ornament of mass 40.0 g is attached to a vertical ideal spring with a force constant (spring constant) of 20.0 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch?0.00200 m0.0196 m0.0816 m0.800 m
- 4. Multiple ChoiceAn object attached to an ideal spring executes simple harmonic motion. If you want to double its total energy, you coulddouble the amplitude of vibrationdouble the force constant (spring constant) of the springdouble both the amplitude and force constant (spring constant).double the mass
- 5. Multiple ChoiceAn object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a maximum?at either A or Bmidway between A and Bone-third of the way between A and Bone-fourth of the way between A and B
- 6. Multiple Choice
A person is standing still and listening to a siren sounding an alarm. The frequency of the sound is 500 Hz. The person begins running toward the sound at a rate of 20 m/s. The frequency of the sound the person hears will
decrease
remain the same
increase
change by 20 Hz.
- 7. Multiple Choice
The speed of a sound wave...
depends on amplitude
depends on the medium
depends on wavelength
none of the above
- 8. Multiple Choice
A(n) _____ is a good mathematical model for representing transverse waves.
tangent curve
exponential curve
parabolic curve
sine curve
- 9. Multiple Choice
The lowest pitch the average human can hear is about 20.0 Hz. If sound with this frequency travels through air about 300 m/s, What is its wavelength?
15
6000 m
15 m
6000
- 10. Multiple Choice
A student holds two vibrating objects. Object A is vibrating faster than object B. Which statement is true?
A is louder than B
B is louder than A
A will have a higher pitch than B
B will have a higher pitch than A
- 11. Multiple ChoiceAn object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its elastic potential energy is a maximum?at either A or Bmidway between A and Bone-third of the way between A and Bone-fourth of the way between A and B
- 12. Multiple ChoiceAn ideal spring with a constant of 200 N/m is acted upon by a 500 N force directed in the positive direction. What is the magnitude and direction of the displacement?0.4 m-0.4 m2.5 m-2.5 m
- 13. Multiple Choice
An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a maximum?
at either A or B
midway between A and B
one-third of the way between A and B
one-fourth of the way between A and B
- 14. Multiple ChoiceThis spring has a constant of 80 N/m. What is the magnitude of the force being applied? The dotted green line represents the spring's equilibrium position and the green vector is displacement.20 N80 N160 N320 N
- 15. Multiple ChoiceA pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.2 sec12 sec8 sec10 sec
- 16. Multiple ChoiceA pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet. What is the gravity of the Unknown Planet?9.83.41.7Greater than 9.8
- 17. Multiple ChoiceWhich position shows the spring with maximum gravitational potential energy?ABCD
- 18. Multiple Choice
An object attached to one end of a spring makes 20 complete vibrations in 10s. Its period is:
0.50 s
2 s
0.5 Hz
2 Hz
- 19. Multiple ChoiceA truck with bad shock absorbers bounces up and down after hitting a bump. The truck has a mass of 1700 kg and is supported by four springs, each having a spring constant of 6200 N/m. What is the period for each spring?0.26 sec1.645 sec0.26 hz1.645 hz
- 20. Multiple Choice
What property of the wave is represented by the letter "B"?
amplitude
crest
trough
wavelength
- 21. Multiple Choice
The number of wavelengths that pass a point each per second is:
frequency
period
longitudinal
transverse wave
- 22. Multiple Choice
An ideal spring with a constant of 200 N/m is acted upon by a 500 N force directed in the positive direction. What is the magnitude and direction of the displacement?
0.4 m
-0.4 m
2.5 m
-2.5 m
- 23. Multiple Choice
What is common with all electromagnetic and mechanical waves?
They travel at the same speed
They transfer energy
They are all longitudinal waves
They are all transverse waves
- 24. Multiple Choice
A student in a band notices that a drum vibrates when another instrument emits a certain frequency note. This phenomenon illustrates
reflection
refraction
resonance
doppler effect
- 25. Multiple Choice
Sound is an example of a
transverse wave
longitudinal wave
focal wave
electromagnetic wave
- Answer choicesTagsAnswer choicesTags