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- 1. Multiple Choice
Hearing your brother's music playing from down the hall is an example of what type of wave interaction?
reflection
interference
absorption
diffraction
- 2. Multiple Choice
You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the ECHO?
sound waves reflecting off smooth, flat surfaces throughout the house
sound waves moving around the large rooms
sound waves moving slowly through air
sound waves refracting around corners in the empty rooms
- 3. Multiple ChoiceIf distance C on the diagram increased, what would happen to the pitch?The pitch would be louder.The pitch would be softer.The pitch would be higher.The pitch would be lower.
- 4. Multiple Choice
If the distance represented by the letter A were increased, how would it change the way the sound was heard?
The sound would be higher.
The sound would be lower.
The sound would be softer.
The sound would be louder.
- 5. Multiple Choice
______ is how high or low a sound is; depends on the frequency.
pitch
frequency
sound
medium
- 6. Multiple Choice
A soft, low pitch sound would have which of the following....
low frequency
high amplitude
high frequency
high amplitude
low frequency
low wavelength
low frequency
low amplitude
- 7. Multiple Choice
A reflected sound wave is know as a/an ___________.
frequency
pitch
echo
rarefaction
- 8. Multiple Choice
Whistle has ______ pitch and Drum has _______ pitch.
low, high
low,low
high,low
high,high
- 9. Multiple Choice
What best describes the doppler effect?
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
When sound changes pitch in one time.
When sound produces echo.
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
- 10. Multiple ChoiceWhen the car moves AWAY from you, its horn seems...Low pitchedHigh pitchedNormal
- 11. Multiple ChoiceWhen an ambulance move TOWARD you it sounds ________ pitched.highlowmedium
- 12. Multiple Choice
When does sound refract?
When it travels in a vacuum.
When it moves through cold air.
When it travels in only one medium.
When it moves from one medium to another.
- 13. Multiple Choice
see image: The image best illustrates sound......
Reflection
Diffraction
Absorption
Interference
- 14. Multiple Choice
Which of the following an example of SOUND DIFFRACTION?
Sound travelling around corners.
Sound being muffled by sound proof panels.
Sound heard by earphones.
- 15. Multiple Choice
see image: The animation best illustrates sound __________.
Reflection
Diffraction
Interference
Absorption
- 16. Multiple Choice
The phases of matter sound can travel through (check all that apply)
solid only
liquid only
gas only
solid, liquid, and gas
- 17. Multiple Choice
This part of the ear vibrates in response to being hit by sound waves first.
ear canal
ear drum
cochlea
- 18. Multiple Choice
True or False: Sound waves are faster than light.
False
True
- 19. Multiple Choice
It is a good sound absorber.
marble tile
concrete wall
soft board
aluminium sheet
- 20. Multiple Choice
Sound RESONANCE occurs when the sound frequencies are _______________,.
the same.
different.
changing.
- 21. Multiple Choice
see image: A sound of 140 Decibel is __________ to our ears.
pleasant
painful
safe
normal
- 22. Multiple Choice
An ULTRASOUND used in medical procedure is another type of _____________.
Chemical echolocation
Light echolocation
Magnetic echolocation
Electrical echolocation
- 23. Multiple Choice
See image: The image best illustrates that sound waves can __________.
be reflected
be absorbed
be refracted
all of the choices
- 24. Multiple Choice
see image: The following are Sound Waves Interactions EXCEPT
Reflection
Absorption
Interference
Infrasonic
Diffraction
- 25. Multiple Choice
How do we take good care of our ears?
Use earplugs or earmuffs for loud music
Keep your ears dry
Don’t listen to your personal music player at very high volume
All of these
- Answer choicesTagsAnswer choicesTags