Characteristics of Sound
Physics ⇒ Waves and Sound
Characteristics of Sound starts at 7 and continues till grade 12.
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See sample questions for grade 12
Define the term 'timbre' in relation to sound.
Describe how the human ear distinguishes between different pitches of sound.
Describe the difference between noise and musical sound.
Explain why sound cannot travel through outer space.
Explain why the sound of thunder is heard after the flash of lightning is seen.
If the amplitude of a sound wave increases, what happens to its loudness?
If the frequency of a sound wave is doubled, what happens to its wavelength (assuming speed of sound is constant)?
A person hears a sound 2 seconds after seeing a flash of lightning. If the speed of sound in air is 340 m/s, how far away did the lightning strike?
Which of the following best describes infrasonic sound? (1) Sound with frequency below 20 Hz (2) Sound with frequency above 20,000 Hz (3) Sound with frequency between 20 Hz and 20,000 Hz (4) Sound that cannot travel through liquids
Which of the following best describes ultrasonic sound? (1) Sound with frequency below 20 Hz (2) Sound with frequency above 20,000 Hz (3) Sound with frequency between 20 Hz and 20,000 Hz (4) Sound that cannot travel through solids
Which of the following factors does NOT affect the speed of sound in a medium? (1) Temperature (2) Density (3) Pressure (4) Color of the medium
Which of the following is NOT a characteristic of sound? (1) Pitch (2) Loudness (3) Timbre (4) Color
The frequency of a sound wave determines its ________.
The human ear can typically hear sounds in the frequency range of ________ Hz to ________ Hz.
The phenomenon of hearing the same sound after it is reflected from a distant surface is called ________.
The unit of frequency is ________.
True or False: Sound can travel through a vacuum.
True or False: The intensity of sound decreases as the distance from the source increases.
True or False: The pitch of a sound depends on its amplitude.
True or False: The speed of sound is greater in solids than in gases.
