What I Know
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
C. wave
B. vibration
2. Mechanical waves transport energy from one place to another through
D. electricity
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
C. mechanical waves
B. infrared waves
D. electromagnetic waves
5. How do we know that waves carry energy?
A. Waves can produce another substance.
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.​