Name: __________________________________________
Objectives
Chapter 17 Concepts Sheet
Reviewing Concepts—Section 17.1: Mechanical Waves
•
Describe how mechanical waves are produced.
•
List the three main types of mechanical waves.
•
For each type of wave, compare the vibration of the medium to the direction of the
wave.
•
Name one example of each type of wave.
Reviewing Concepts—Section 17.2: Properties of Mechanical Waves
•
How is wavelength related to frequency if the wave is traveling at a constant speed?
•
How is energy related to the amplitude of a wave?
•
Describe two ways to measure the wavelength of wave.
•
If you double the frequency of a wave, what will happen to its wavelength if the speed
does not change?
Reviewing Concepts—Section 17.3: Behavior of Waves
Objectives
•
How is a wave changed by reflection?
•
What determines how much a wave diffracts when it encounters an opening or
obstacle?
•
List and describe the types of interference
•
At what wavelengths can a standing wave form in a cord?
Reviewing Concepts—Section 17.4: Sound and Hearing
• What is the Doppler Effect?
• List and briefly describe the 5 properties used to explain the behavior of sound waves
Wave Properties Worksheet
Worksheet 17A
(modified from http://www.crsd.org/cms/lib5/PA01000188/Centricity/Domain/795/wave_practice_wkst.pdf and from Paul Ondeck’s
worksheets)
1. The illustration below shows a series of transverse waves. Label each part in the space
provided.
a. __________________________
b. __________________________
c. __________________________
d. __________________________
e. __________________________
f. __________________________
g. __________________________
2. The illustration below shows a series of longitudinal waves. Label each part in the
space provided.
a. __________________________
b. __________________________
c. __________________________
3. Below are a number of series of waves. Underneath each diagram write the numbers
of waves in the series
a. Which of the above has the biggest amplitude? __________________
b. Which of the above has the shortest wavelength? ________________
c. Which of the above has the longest wavelength? ________________
4. Which wave shown below has more energy? How can you tell?
5. Which wave shown below has a higher frequency? How can you tell?
Wave Math Worksheet
1. A person standing on a boat counts 6 waves hitting the side of the boat in 30 seconds.
What is the frequency of the waves?
2. A student doing a science experiment has a “wave generator” set to produce 20
waves in 4 seconds. What is the frequency of the wave generator?
3. A wave has a wavelength of 6cm and a frequency of 7 Hz. What is the speed of the
wave?
4. What is the period of the wave in #3 above?
5. A surface wave has a period of 0.5 s and a wavelength of 0.75m. What is the speed of
the wave?
6. What is the frequency of the wave in #5 above?
7. What is the period of a wave in a spring if it has a wavelemngth of 120mm and a wave
speed of 0.37 m/s?
8. What is the frequency of the wave in #7 above?
9. What is the wavelength of a wave that has a speed of 3km/s and a frequency of 8 Hz?
10. What is the period of the wave in #9 above?
11. What is the speed, in m/s, of a wave on a cord if it has a wavelength of 4 m and a
period of 0.5 s?
12. What is the period of a wave traveling 5 m/s if its wavelength is 20 m?
13. Calculate the frequency, in Hz, of a wave in a string traveling 1.25 m/s, with a
wavelength of 0.50 m.