MULTIPLE CHOICE DIRECTIONS: Choose the letter of the correct answer. Write your answers on your notebook.

1. Molecules of solids are closest to one another compared to liquids and gases. The energy carried by sound can easily transfer thus sound travels in solids
a. the slowest
b. the fastest
c. with undetermined speed
d. with varying speed

2. Molecules of gases are farther apart, thus sound travels in gases
a. the slowest
c. with undetermined speed
b. the fastest
d. with varying speed

3. The speed of sound is different in air, steel and water. Which of the following gives the correct order of speed of sound from slowest to fastest?
a. air, steel, water
c. steel, air, water
b. air, water, steel
d. steel, water, air

4. Sound, unlike light, cannot be propagated through
a.air
b.steel
c.Vacuum
d.water

5. Which of the following arrangement of media is the speed of sound increasing? a. wood, water, air c. metal, alcohol, air b. air, oil, ice d. air, water, ice

6. Which of the following statement(s) is/are TRUE?
l. Sound travels faster in humid air than in dry air.
II. Sound travel slower in cold air than in hot air.

a. b. Il
c. both I and II
d. neither I nor ||

7. Speed of sound is dependent on the following factors EXCEPT
a. temperature
c. humidity
b. area
d. pressure

8. It is refered to as the highest point and lowest point of a wave pattern, respectively.
a. crest and trough
c. speed and vibration
b. period and frequency
d. wavelength and amplitude

9. Sound waves travel faster in water than in air because water has a greater
a. density
c. number of molecules
b. elasticity
d, volume

10. A high frequency sound has
a. low pitch
c. low energy
b. high pitch
d. a and c​