Sound Waves Quiz

The velocity of sound in steels is 500.0ms-1. If the wave lenght of the sound is 0.2 m, calculate its frequency.

• 100Hz

• 250Hz

• 1000Hz

• 2500H

The distance between two (2) successive compression of a sound wave is its

• pitch

• frequency

• wavelenght

• amplitude

For any systems to produce sound, it must

• posses potential energy.

• be vibrating.

• both kinectic and potential energies.

• possesn kinetic energy.

The quantity of musical note depends on the

• pitch of the note.

• intensity of the note.

• overtones present.

• loudness of the note.

The external ear consist of the pinna and the

• ampullae.

• oval window.

• Eustachain tube.

• auditory canal.

Which structure in the ear contains sound receptor cells?

• Semi-circular canal

• Tympranum

• cochlea

• Ear canal

Which of the following statement is correct?

• The flute is an example of a percussion instrument.

• Sound travels faster in liquid than in solids.

• The loudness of a note is measuerd in decibels.

• The same note played on different instrument can be distinguish because of thier quality.

A wave of freqency 1000 Hz has a wavelenght of 5.0 cm. Calculate the velocity of the wave.

• 2.0 ms -1

• 5.0ms -1

• 50.0 ms -1

• 200 ms-1

Which of the following phenomena is due to Doppler effect?

• The sound of an approachimg vehicle increases in intensity

• A vibrating tuning fork produces a loud note in a column of air

• A sonometern wire vibrates vigorously to throw off a paper rider

• A man whistling in large hall hears a reptition of the sound he produces.

The wave generated by a ratio station transmitting at frequency of 100 MHZ has wave lenght of 3m.Calculate the velocity of the wave.

• 1.5 x 10^-7

• 3.3 x 10^-7 ms-1

• 1.5 x 10^6

• 3.0 x 10^8 ms^-1