WavesChapter Problems
Wave speed, frequency and wavelength
Class work
- A fisherman noticed that a float makes 30 oscillations in 15 seconds. The distance between two consecutive crests is 2 m. What is the period and frequency of the wave? What is the wave speed?
- What is the wave speed if the period is 4.0 seconds and the wavelength is 1.8 m?
- What is the period of a wave traveling with a speed of 1.6 m/s and the wavelength is 0.50 m?
- What is the wavelength of a wave traveling with a speed of 3.0 m/s and the period of 6.0 s?
- A fisherman noticed that a wave strikes the boat side every 5 seconds. The distance between two consecutive crests is 1.5 m. What is the period and frequency of the wave? What is the wave speed?
- What is the wave speed if the period is 7.0 seconds and the wavelength is 2.1 m?
- What is the period of a wave traveling with a speed of 20 m/s and the wavelength is 4.0 m?
- What is the wavelength of a wave traveling with a speed of 6.0 m/s and the period of 3.0 s?
- 1. What is the speed of a wave with a frequency of 357 Hz and a wavelength of 0.37 m?
- 2. What is the frequency of a wave with a period of 6 s?
- 3. What is the velocity of a wave with a period of 3 s and a wavelength of 4.6 m?
- 4. What is the speed of a sound wave traveling through air at 16oC?
- 5. What is the wavelength of a wave with a velocity of 290 m/s and a frequency of 356 Hz?
- 6. A ship receives the echo of its fog horn from an iceberg 5 s after it is sounded. If the air temperature is 5oC, How far away is the iceberg?
Wave Graphs
Class work
- A “snapshot” of a wave is given above. The frequency of oscillations is 240 Hz.
- What is the amplitude of the wave?
- What is the wavelength of the wave?
- What is the wave speed?
- What is the wave period?
- A “snapshot” of a wave is given above. The frequency of oscillations is 120 Hz.
- What is the amplitude of the wave?
- What is the wavelength of the wave?
- What is the wave speed?
- What is the wave period?
Homework
- A “snapshot” of a wave is given above. The frequency of oscillations is 160 Hz.
- What is the amplitude of the wave?
- What is the wavelength of the wave?
- What is the wave speed?
- What is the wave period?
- A “snapshot” of a wave is given above. The frequency of oscillations is 100 Hz.
- What is the amplitude of the wave?
- What is the wavelength of the wave?
- What is the wave speed?
- What is the wave period?
1. 132 m/s; 2.0.167 Hz; 3.1.53 m/s; 4.341.1 m/s; 5.0.81 m; 6. 836 m
Waves
Chapter Problems
- 4 m/s, 2 Hz, .5 s
- .45 m/s
- .3125 s
- 18 m
- .3 m/s, .2 Hz, 5 s
- .3 m/s
- .133 s
- 18 m
- 5 m/s
- 98000 N
- 4 m/s, 5 Hz
- 6.13 m/s
- 230400 N
- 4.08 m/s, 10.2 Hz
- 330 Hz, 660 Hz, 990 Hz, 1320 Hz
- 60 Hz, 120 Hz, 180 Hz, 240 Hz
- 2 m, 30 Hz, 60 Hz, 90 Hz
- 450 Hz, 900 Hz, 1350 Hz, 1800 Hz
- 50 Hz, 100 Hz, 150 Hz, 200 Hz
- .2 m, 200 Hz, 400 Hz, 600 Hz
- a. 10 cm
b. 65 cm
c. 156 m/s
d. .0041 s
- a. 3 m
b. 7 m
c. 840 m/s
d..00833 s
- a. 1 m
b. 1.5 m
c. 240 m/s
d. .00625 s
- a. 4 m
b. 3 m
c. 300 m/s
d. .01 s
General Problems
- a. 1 m
b. 9.89 m/s
c. 9.89 Hz
d. more loops
- a. 1 m
b. 19.79 m/s
c. 19.79 m/s
d. more loops
- a. 2.4 m
b. 1.2 m
c. destructive
d. constructive
e. partially destructive
- a. .8 m
b. .4 m
c. destructive
d. constructive
e. destructive