6010

Physics Waves And Oscillations Level: Misc Level

What frequency should a radio station have if its waves are to have a wavelength of 200 nm?




5890

Physics Waves And Oscillations Level: Misc Level

A sound wave, traveling at 320 m/s, is emitted by the foghorn of a tugboat .An echo is heard 3.29 s later. How far is the reflecting object?Answer in units of m.




5852

Physics Waves And Oscillations Level: Misc Level

Double the frequency of sound and you also double its a.wavelength b. speed c. amplitude d. all of these e. non of these




5851

Physics Waves And Oscillations Level: Misc Level

Unlike a transverse wave, a longitudinal wave has a. no amplitude b. no frequency c. no wavelength d. no speed e.....a longitudinal wave has all of these




5610

Physics Waves And Oscillations Level: Misc Level

Sound travels around 340 m/s in air. In a bat squeaks and hears the echo of its squeak return to it 6 seconds later, how far away is the insect which the bat's squeak encounters? Show calculations




5609

Physics Waves And Oscillations Level: Misc Level

No matter what the temperature of the air, the frequency produced by the tuning fork remains the same.Would the wavelength produced by the tuning fork be longer in dry air or in moist air? Explain the reason for the answer.




5605

Physics Waves And Oscillations Level: Misc Level

Dogs cool their bodies by sticking their tongues and panting, which causes saliva in their mouth and respiratory system to evaporate, The normal breathing rate of a dog is abut 30 breaths a minute.The respiratory system of a medium sized dog has a resonance frequency of about 5 Hz

A) In breaths per minute, how fast would a dog be breathing if it were to pant at the natural resonance frequency of its respiratory system?




5593

Physics Waves And Oscillations Level: Misc Level

The intensity of sound at a given point is measured to be 0.0005 w/m2. What is the decibel level of the sound?




5591

Physics Waves And Oscillations Level: Misc Level

When the Amplitude of a pendulum decreases to half it initial value, the period will have

a) halved

b) remained the same

c)doubled




5539

Physics Waves And Oscillations Level: Misc Level

In the following for SMH: represents:

Angular frequency

Amplitude of oscillation

Period of the wavefrom

Phase constant




5538

Physics Waves And Oscillations Level: Misc Level

The intensity of sound at a given point is measured to be 0.0005 W/m2. What is the decibel level of the sound?

a. 97 dB

b. 55 dB

c. 87 dB

d. 90 dB




5536

Physics Waves And Oscillations Level: Misc Level

When the amplitude of a pendulum decreases to half its initial value, the period will have:

a. Remained the same

b. Halved

c. Doubled




5535

Physics Waves And Oscillations Level: Misc Level

A pendulum of length 2 meters is taken to a moon. If this pendulum makes 10 oscillations in 32.0 seconds, what is the value of gravitional acceleration on this moon?

a. 9.86 m/s2

b. 3.86 m/s2

c. 2.54 m/s2

d. 7.71 m/s2




5529

Physics Waves And Oscillations Level: Misc Level

Which one of these instruments produces the highest pitch sound (piccolo, flute,or tuba)




5528

Physics Waves And Oscillations Level: Misc Level

A wave has a wavelength of 1/2 meter and a frequency of 680 hz. What is the velocity of this wave(320 m/s,340 m/s or 680 m/s


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