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18 questions
Sound is caused by:
waves.
vibrations.
heat.
air.
Elephants can make sounds of high intensity. These sounds will be:
quiet.
high.
soft.
loud.
The tweeting sound made by a small bird has a pitch that is:
soft.
high.
low.
quiet.
Frequency:
is the amplitude of the vibrations.
is measured in metres.
is the number of vibrations each second.
affects how loud a sound is.
Sound cannot travel though empty space because:
air particles stay still.
there are no particles to vibrate.
particles pass on vibrations.
electricity sends it through the air.
Which list is in the correct order to show the speed of sound in different materials, starting with the slowest?
solids, liquids, gases
solids, gases, liquids
gases, liquids, solids
liquids, solids, gases
What do all waves transfer?
energy only
energy and matter
matter only
energy and particles
What is the amplitude of a sound wave?
its loudness
the maximum distance the particles vibrate away from their starting positions when the wave passes
the height of the vibrations
how high or low the sound is.
The ear changes sound waves into:
light.
nerves.
nerve impulses.
heat.
Which part of the ear changes sound vibrations into signals sent to the brain?
the cochlea
the eardrum
the auditory nerve
the small bones
Which of the following statements is not correct?
infrasounds are sounds with frequencies too low for humans to hear
ultrasounds are sounds that are too high for humans to hear
humans have a greater auditory range than dogs
some animals can hear higher pitched sounds than humans can
Soundproofing works when:
windows in a room are left open.
sounds pass easily through the walls.
sounds are absorbed by certain materials.
the walls in a room are painted black.
A loud sound is produced by waves with:
a high pitch.
a high frequency.
a large amplitude.
a small amplitude.
Look at these drawings of waves. Which statement is true?
Y has the highest amplitude.
Y has the longest wavelength.
X has the highest frequency.
Y has the highest frequency.
The pitch of a sound is:
how high or low it sounds.
how loud or quiet it it.
how much energy it carries.
how long the sound lasts.
Sound travels fastest in solid materials which have particles that are:
wide apart.
close together.
very hot.
able to move around freely.
Audible sound range
Infrasonic sound range
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