C. vacuum
4. Which of the following statement is true about amplitude?
a. The less energy c wave carries, the greater its amplitude.
b. The more energy a wave carries, the lesser its amplitude.
c. The more energy a wave carries, the greater its amplitude.
d. All of the above.
5. Which of the following electromagnetic spectrum can be seen by our naked eye?
a ultra-violet rays b. visible light
c. radio frequency
d. x-rays
6. Sound waves are
a. transverse
b. longitudinal
c. motion
d. wave
7. Mechanical waves transport energy from one place to another through
a. medium
b. space
d. wave
8. Which produces sound waves?
I. a body vibrating in water
Il. a body at rest in air
III. a vibrating body surrounded by nothing
b. ll only
c. Ill only
a. I only
9. The louder the sound wave, the
b. softer
a greater
10. Which will you do to produce a high pitch note in a guitar?
c. pluck a longer string
a. loosen the string
b. tighten the string
d. 1, 11, and ill
the energy of the sound wave.
c. lower
d. normal
d. pluck the string with bigger siz​