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- 1. Multiple ChoiceA disturbance that travels through a medium as a longitudinal wavesoundwavelengthpitchfrequency
- 2. Multiple ChoiceMaterial (matter) through which a wave travelsmediumDoppler Effectsoundpitch
- 3. Multiple ChoiceWhen the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passespitchfrequencyDoppler Effectmedium - 4. Multiple Choice
When the car moves away from you, its horn seems...Low pitchedHigh pitchedNormal - 5. Multiple ChoiceBased on the Doppler effect, what can you tell about the motion of this object?It is moving left.It is moving right quickly.It is standing still.It is moving up slowly.
- 6. Multiple ChoiceBased on the Doppler effect, what can you tell about this object's motion?It's velocity is to the North.It's velocity is to the South.It's velocity is to the West.It's velocity is to the East.
- 7. Multiple ChoiceTrue or False: The Doppler effect occurs when an observer moves towards a wave source.TrueFalse
- 8. Multiple ChoiceTrue or False: The Doppler effect occurs when an observer moves away from a wave source.TrueFalse
- 9. Multiple ChoiceThis is what you get when soundwaves are reflected, or bounce back, off of a hard surface.AmplitudePitchVolumeEcho
- 10. Multiple ChoiceSound travels through solids.TrueFalse
- 11. Multiple Choice1. Sound can’t travel through liquids.TrueFalse
- 12. Multiple Choice1. Sound travels through gas.TrueFalse
- 13. Multiple ChoiceSound is caused by?forcevibrationsinstruments
- 14. Multiple ChoiceWhat is frequency?the number of vibrations per secondhow high or low a sound isthe loudness or softness of a soundthe back and forth movement of matter
- 15. Multiple ChoiceWhat is vibration?how loud a sound isthe back and forth movement of matterhow high or low a sound isthe loudness or softness of a sound
- 16. Multiple ChoiceA pendulum takes 2 seconds to complete one cycle. What is its period?1/2 sec2 sec4 sec1 sec
- 17. Multiple ChoiceA pendulum takes 20 seconds to complete one cycle. What is its period?1/20 sec10 sec20 sec5 sec
- 18. Multiple ChoiceA pendulum has a period of 2 seconds. What is its frequency?2 Hertz1/2 Hertz4 Hertz1/4 Hertz
- 19. Multiple ChoiceMeasuring the length from the middle (equilibrium) of the pendulum to the highest point of the swing, it is found to be 15 cm. What is the amplitude?30 cm1/15 cm15 cm1/30 cm
- 20. Multiple Choice
Waves transfer
energy only
matter only
energy and matter
nothing
- 21. Multiple Choice
What unit is used to describe frequency of waves?
decibel
meters
hertz
Newtons
- 22. Multiple Choice
What is the unit for wavelengths?
Hertz
meters
meters per second
meters per second sqaured
- 23. Multiple Choice
Part of a standing wave that does not move
node
antinode
crest
trough
- 24. Multiple Choice
occurs when an object vibrates at or near a certain frequency causes a second object to vibrate
Echo
Reflection
Refraction
Resonance
- 25. Multiple Choice
4. Why do we hear thunder after we see a flash of lightning , usually some time later?
Sound travels at a speed of 300,000,000 m/s. while light travels at a speed of 330 m/s.
Sound travels at a speed of 330 m/s while light travels at a speed of 3,000,000 m/s.
Sound travels at a speed of 330 m/s while light travels at a speed of 300,000,000 m/s.
Because imagine dragons thunder, feel the thunder.
- Answer choicesTagsAnswer choicesTags