Assessment
Choose the letter of the best answer. Write the chosen letter on your notebook.

1. What do you call the periodic disturbance that moves away from a source and
carries energy with it?
A. Air B. Vibration C. wave D. electricity

2. Mechanical waves transport energy from one place to another through
A. Alternately vibrating particles of the medium
B. Particles traveling with the wave
C. Vibrating particles and traveling particles
D. None of the above

3. In a transverse wave, the individual particles of the medium
A. move in circles
B. move in ellipses
C. move parallel to the direction of travel
D. move perpendicular to the direction of travel

4. Energy from the sun reaches the earth through?
A. ultraviolet waves
B. infrared waves

5. How do we know that waves carry energy?
A. Waves can produce another substance.
C. mechanical waves
D. electromagnetic waves
B. Waves can transform an object to another.
C. Waves can set other objects at rest.
D. Waves can set other objects into motion.

6. What happens when waves pass by?
A. Particles do not move.
B. Particles are in vertical position.
C. Particles are in horizontal position.
D. Particles vibrate alternately to transport the energy of the wave.

For items 7-9, refer to the diagram of the wave below

7. Which point is the crest?
A. Point A
B. Point B

8. Which point is the through?
A. Point A C. Point C
B. Point B D. Point D

9. Indicate the interval that represents a half wavelength.
A. A to E
B. B to F
C. A to B
D. C to E


Consider the diagram below to answer questions 10-13

10.The wavelength of the wave is identified by letter .
11.The amplitude of the wave in the diagram above is given by letter .
12.What is the frequency of the wave if it travels for 15 seconds?
A. 0.2 Hz C. 0.8 Hz
B. 0.4 Hz

13.What is the period of the given wave?
A. 3 second C. 5 seconds
B. 4 seconds D. 6 seconds

14.The higher the frequency of a wave,
A. the lower its speed
B. the shorter its wavelength 0.6 Hz
C. the greater its amplitude
D. the longer its period

15.Suppose you observed an anchored boat to rise and fall once every 4.0
seconds as waves whose crests are 25 meters apart pass by it. What is the
speed of the waves?
A. 0.25 m/s
B. 4.00 m/s
C. 6.3 m/s
D. impossible to find from the information given