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WorksheetsSound Energy
Total questions: 25
Worksheet time: 28mins
What causes an echo?
sound waves bouncing off large, hard surfaces
sound waves bouncing off carpet
sound waves bouncing off trees and bushes
you repeating yourself
What is the approximate range of hearing of a healthy human ear?
2.0 Hz to 2.0 kHz
2.0 Hz to 20 kHz
20 Hz to 2.0 kHz
20 Hz to 20 kHz
A singer sings two notes. The first note is louder and lower in pitch than the second note.
Which statement about the two notes is correct?
The first note has a larger amplitude and a larger frequency than the second note.
The first note has a larger amplitude and a smaller frequency than the second note.
The first note has a smaller amplitude and a larger frequency than the second note.
The first note has a smaller amplitude and a smaller frequency than the second note.
Sound wave P has a greater amplitude and a larger wavelength in air than sound wave Q.
How do the loudness and pitch of P compare with the loudness and pitch of Q?
P is louder and higher in pitch than Q.
P is louder and lower in pitch than Q.
P is quieter and higher in pitch than Q.
P is quieter and lower in pitch than Q.
The frequency of a musical note is increased.
A student hearing the sound detects an increase in which property?
loudness of the sound
pitch of the sound
speed of the sound wave
wavelength of the sound wave
Sounds are produced by vibrating objects. A certain object vibrates but a person nearby cannot hear any sound.
Which statement could explain why nothing is heard?
The amplitude of the sound waves is too large.
The frequency of the vibration is too high.
The sound waves are transverse.
The speed of the sound waves is too high.
Tick ALL the transverse wave
visible light
radio waves
sound waves
gamma rays
microwaves
Which part of the human ear normalizes the pressure between the middle ear and the surroundings?
eardrum
ear canal
Eustachian tube
auditory nerve
cochlea
Inside a cinema the sound is loud. This sound will be absorbed by the carpets and draperies to prevent echo. This statement is an energy transformation; sound energy is converted into (a) .
Calculate the speed of sound in the air if the temperature is 10oC
(JUST TYPE THE VALUE - DO NOT INCLUDE THE UNIT)
(a)
The average speed of the sound in water is 1500 m/s. Calculate the length of the wave if the sound frequency is 5000 Hz. (Express your answer using 3 significant figures)
(a)
A man shouted towards a nearby mountain and after 2.4 s his echo is heard.
If the speed of sound in the air is 340 m/s, what is the distance between the man and the mountain where the sound is reflected?
(a)
The section of the sound wave where the particles are close together is called (a)
Which of the following will increase the loudness of the bass drum?
make the drum's skin smaller
make the drum's skin bigger
strike the drum's skin harder
make the drum's skin thicker
