# User:Guy vandegrift/Quizbank/Archive1/College Physics/II T1study

## TrigPhysT1_151021_Study[edit]

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- This document contains either a study guide OR pairs of exams taken from the same exam bank
- If two exams have the same s-number, then v1 and v2 have the same questions, presented in different (random) order.
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**Attribution**for the quizzes identifies where the questions were obtained**Study guide**links reading materials and/or relevant equations.

### TrigPhysT1_151021_Study-v1s1[edit]

1. These two pulses will collide and produce

- ___ a) positive diffraction

- ___ b) negative interference

- ___ c) negative diffraction

- ___ d) positive interference

2. These two pulses will collide and produce

- ___ a) positive diffraction

- ___ b) negative diffraction

- ___ c) negative interference

- ___ d) positive interference

3. These two pulses will collide and produce

- ___ a) positive interference

- ___ b) positive diffraction

- ___ c) negative diffraction

- ___ d) negative interference

7. Why don't we hear beats when two different notes on a piano are played at the same time?

- ___ a) The beats happen so many times per second you can't hear them.

- ___ b) Reverberation usually stifles the beats

- ___ c) Echo usually stifles the beats

- ___ d) The note is over by the time the first beat is heard

8. A tuning fork with a frequency of 440 Hz is played simultaneously with a tuning fork of 442 Hz. How many beats are heard in 10 seconds?

- ___ a) 30

- ___ b) 50

- ___ c) 40

- ___ d) 20

- ___ e) 60

9. If you start moving towards a source of sound, the pitch becomes

- ___ a) lower

- ___ b) unchanged

- ___ c) higher

10. If a source of sound is moving towards you, the pitch becomes

- ___ a) higher

- ___ b) lower

- ___ c) unchanged

11. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

- ___ a) Rough walls make for a louder sound.

- ___ b) The difference in path lengths creates more reverberation.

- ___ c) The difference in path lengths creates more echo.

12. People don't usually perceive an echo when

- ___ a) it arrives less than a tenth of a second after the original sound

- ___ b) it arrives at a lower pitch

- ___ c) it arrives at a higher pitch

- ___ d) it takes more than a tenth of a second after the original sound to arrive

- ___ e) it arrives at exactly the same pitch

13. A dense rope is connected to a rope with less density (i.e. fewer kilograms per meter). If the rope is stretched and a wave is sent along high density rope,

- ___ a) the low density rope supports a wave with a lower frequency

- ___ b) the low density rope supports a wave with a lower speed

- ___ c) the low density rope supports a wave with a higher speed

- ___ d) the low density rope supports a wave with a higher frequency

14. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

- ___ a) the wavelength stays the same

- ___ b) the wavelength gets shorter

- ___ c) the wavelength gets longer

15. When a wave is reflected off a stationary barrier, the reflected wave

- ___ a) has lower amplitude than the incident wave

- ___ b) both of these are true

- ___ c) has higher frequency than the incident wave

16. Comparing a typical church to a professional baseball stadium, the church is likely to have

- ___ a) echo instead of reverberation

- ___ b) neither reverberation nor echo

- ___ c) reverberation instead of echo

- ___ d) both reverberation and echo

17. A 0.177 kg mass is on a spring that causes the frequency of oscillation to be 71 cycles per second. The maximum velocity is 60.9 m/s. What is the maximum force on the mass?

- ___a) 2.2 x 10
^{3}N

- ___b) 4.8 x 10
^{3}N

- ___c) 1 x 10
^{4}N

- ___d) 2.2 x 10
^{4}N

- ___e) 4.8 x 10
^{4}N

18. A spring with spring constant 5.9 kN/m is attached to a 6.5 gram mass. The maximum acelleration is 3.6 m/s^{2}. What is the maximum displacement?

- ___a) 1.25 x 10
^{-6}m

- ___b) 3.97 x 10
^{-6}m

- ___c) 1.25 x 10
^{-5}m

- ___d) 3.97 x 10
^{-5}m

- ___e) 1.25 x 10
^{-4}m

19. A spring of spring constant 8.4 kN/m causes a mass to move with a period of 2.2 ms. The maximum displacement is 2.1 mm. What is the maximum kinetic energy?

- ___a) 1.85 x 10
^{-3}J

- ___b) 5.86 x 10
^{-3}J

- ___c) 1.85 x 10
^{-2}J

- ___d) 5.86 x 10
^{-2}J

- ___e) 1.85 x 10
^{-1}J

20. A spring with spring constant 2.7 kN/m undergoes simple harmonic motion with a frequency of 3.1 kHz. The maximum force is 6.3 N. What is the total energy?

- ___a) 2.32 x 10
^{-3}J

- ___b) 7.35 x 10
^{-3}J

- ___c) 2.32 x 10
^{-2}J

- ___d) 7.35 x 10
^{-2}J

- ___e) 2.32 x 10
^{-1}J

21. The temperature is -2.3 degrees Celsius, and you are standing 0.62 km from a cliff. What is the echo time?

- ___a) 3.226 x 10
^{0}seconds

- ___b) 3.483 x 10
^{0}seconds

- ___c) 3.761 x 10
^{0}seconds

- ___d) 4.061 x 10
^{0}seconds

- ___e) 4.385 x 10
^{0}seconds

22. While standing 0.62 km from a cliff, you measure the echo time to be 3.648 seconds. What is the temperature?

- ___a) 1.47 x 10
^{1}Celsius

- ___b) 1.7 x 10
^{1}Celsius

- ___c) 1.97 x 10
^{1}Celsius

- ___d) 2.27 x 10
^{1}Celsius

- ___e) 2.62 x 10
^{1}Celsius

23. What is the speed of a transverse wave on a string if the string is 0.45 m long, clamped at both ends, and harmonic number 4 has a frequency of 996 Hz?

- ___a) 1.53 x 10
^{2}unit

- ___b) 1.85 x 10
^{2}unit

- ___c) 2.24 x 10
^{2}unit

- ___d) 2.72 x 10
^{2}unit

- ___e) 3.29 x 10
^{2}unit

#### Key to TrigPhysT1_151021_Study-v1s1[edit]

1. These two pulses will collide and produce

- - a) positive diffraction

- - b) negative interference

- - c) negative diffraction

- + d) positive interference

2. These two pulses will collide and produce

- - a) positive diffraction

- - b) negative diffraction

- + c) negative interference

- - d) positive interference

3. These two pulses will collide and produce

- + a) positive interference

- - b) positive diffraction

- - c) negative diffraction

- - d) negative interference

7. Why don't we hear beats when two different notes on a piano are played at the same time?

- + a) The beats happen so many times per second you can't hear them.

- - b) Reverberation usually stifles the beats

- - c) Echo usually stifles the beats

- - d) The note is over by the time the first beat is heard

8. A tuning fork with a frequency of 440 Hz is played simultaneously with a tuning fork of 442 Hz. How many beats are heard in 10 seconds?

- - a) 30

- - b) 50

- - c) 40

- + d) 20

- - e) 60

9. If you start moving towards a source of sound, the pitch becomes

- - a) lower

- - b) unchanged

- + c) higher

10. If a source of sound is moving towards you, the pitch becomes

- + a) higher

- - b) lower

- - c) unchanged

11. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

- - a) Rough walls make for a louder sound.

- + b) The difference in path lengths creates more reverberation.

- - c) The difference in path lengths creates more echo.

12. People don't usually perceive an echo when

- + a) it arrives less than a tenth of a second after the original sound

- - b) it arrives at a lower pitch

- - c) it arrives at a higher pitch

- - d) it takes more than a tenth of a second after the original sound to arrive

- - e) it arrives at exactly the same pitch

13. A dense rope is connected to a rope with less density (i.e. fewer kilograms per meter). If the rope is stretched and a wave is sent along high density rope,

- - a) the low density rope supports a wave with a lower frequency

- - b) the low density rope supports a wave with a lower speed

- + c) the low density rope supports a wave with a higher speed

- - d) the low density rope supports a wave with a higher frequency

14. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

- - a) the wavelength stays the same

- - b) the wavelength gets shorter

- + c) the wavelength gets longer

15. When a wave is reflected off a stationary barrier, the reflected wave

- + a) has lower amplitude than the incident wave

- - b) both of these are true

- - c) has higher frequency than the incident wave

16. Comparing a typical church to a professional baseball stadium, the church is likely to have

- - a) echo instead of reverberation

- - b) neither reverberation nor echo

- + c) reverberation instead of echo

- - d) both reverberation and echo

17. A 0.177 kg mass is on a spring that causes the frequency of oscillation to be 71 cycles per second. The maximum velocity is 60.9 m/s. What is the maximum force on the mass?

- -a) 2.2 x 10
^{3}N

- -a) 2.2 x 10

- +b) 4.8 x 10
^{3}N

- +b) 4.8 x 10

- -c) 1 x 10
^{4}N

- -c) 1 x 10

- -d) 2.2 x 10
^{4}N

- -d) 2.2 x 10

- -e) 4.8 x 10
^{4}N

- -e) 4.8 x 10

18. A spring with spring constant 5.9 kN/m is attached to a 6.5 gram mass. The maximum acelleration is 3.6 m/s^{2}. What is the maximum displacement?

- -a) 1.25 x 10
^{-6}m

- -a) 1.25 x 10

- +b) 3.97 x 10
^{-6}m

- +b) 3.97 x 10

- -c) 1.25 x 10
^{-5}m

- -c) 1.25 x 10

- -d) 3.97 x 10
^{-5}m

- -d) 3.97 x 10

- -e) 1.25 x 10
^{-4}m

- -e) 1.25 x 10

19. A spring of spring constant 8.4 kN/m causes a mass to move with a period of 2.2 ms. The maximum displacement is 2.1 mm. What is the maximum kinetic energy?

- -a) 1.85 x 10
^{-3}J

- -a) 1.85 x 10

- -b) 5.86 x 10
^{-3}J

- -b) 5.86 x 10

- +c) 1.85 x 10
^{-2}J

- +c) 1.85 x 10

- -d) 5.86 x 10
^{-2}J

- -d) 5.86 x 10

- -e) 1.85 x 10
^{-1}J

- -e) 1.85 x 10

20. A spring with spring constant 2.7 kN/m undergoes simple harmonic motion with a frequency of 3.1 kHz. The maximum force is 6.3 N. What is the total energy?

- -a) 2.32 x 10
^{-3}J

- -a) 2.32 x 10

- +b) 7.35 x 10
^{-3}J

- +b) 7.35 x 10

- -c) 2.32 x 10
^{-2}J

- -c) 2.32 x 10

- -d) 7.35 x 10
^{-2}J

- -d) 7.35 x 10

- -e) 2.32 x 10
^{-1}J

- -e) 2.32 x 10

21. The temperature is -2.3 degrees Celsius, and you are standing 0.62 km from a cliff. What is the echo time?

- -a) 3.226 x 10
^{0}seconds

- -a) 3.226 x 10

- -b) 3.483 x 10
^{0}seconds

- -b) 3.483 x 10

- +c) 3.761 x 10
^{0}seconds

- +c) 3.761 x 10

- -d) 4.061 x 10
^{0}seconds

- -d) 4.061 x 10

- -e) 4.385 x 10
^{0}seconds

- -e) 4.385 x 10

22. While standing 0.62 km from a cliff, you measure the echo time to be 3.648 seconds. What is the temperature?

- +a) 1.47 x 10
^{1}Celsius

- +a) 1.47 x 10

- -b) 1.7 x 10
^{1}Celsius

- -b) 1.7 x 10

- -c) 1.97 x 10
^{1}Celsius

- -c) 1.97 x 10

- -d) 2.27 x 10
^{1}Celsius

- -d) 2.27 x 10

- -e) 2.62 x 10
^{1}Celsius

- -e) 2.62 x 10

23. What is the speed of a transverse wave on a string if the string is 0.45 m long, clamped at both ends, and harmonic number 4 has a frequency of 996 Hz?

- -a) 1.53 x 10
^{2}unit

- -a) 1.53 x 10

- -b) 1.85 x 10
^{2}unit

- -b) 1.85 x 10

- +c) 2.24 x 10
^{2}unit

- +c) 2.24 x 10

- -d) 2.72 x 10
^{2}unit

- -d) 2.72 x 10

- -e) 3.29 x 10
^{2}unit

- -e) 3.29 x 10

- Attribution (for quiz questions) under CC-by-SA license

- http://en.wikiversity.org/wiki/How_things_work_college_course/Waves_(Physics_Classroom)
- http://en.wikiversity.org/w/index.php?title=Physics_equations/18-Electric_charge_and_field/Q:findE&oldid=1378605
- Study guide

- http://www.physicsclassroom.com/class/waves
- http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters