Sound is caused by:
transverse waves
longitudinal vibrations
heat
air
Elephants can make sounds of high intensity. These sounds will be:
quiet
high pitched
soft
loud
The tweeting sound made by a small bird has a pitch that is:
high
low
If a piece of metal is vibrating at 2 cycles per second, it:
makes one complete backward and forward movement each second
makes two complete backward and forwards movements each second.
makes four complete backward and forwards movements each second.
takes two seconds for it to make one complete backward and forward movement.
The piece of equipment that is used to show sounds as waves is called:
an oscilloscope.
a microphone.
an amplitude.
a trace.
Frequency:
is the height of the waves.
is the number of waves passing a point each second.
is measured in metres.
affects how loud a sound is.
A loud sound is produced by waves with:
a high pitch.
a high frequency.
a large amplitude.
a small amplitude
Which statement is not true?
Light and sound can both be used to send information.
Sound travels at the same speed as light.
Light travels faster than sound.
Some animals use light and sound to communicate.
Starting with the slowest, which of the following is the correct order for the speeds of sound travelling through materials?
solid, gas, liquid
gas, vacuum, liquid, solid
solid, gas, vacuum
gas, liquid, solid
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.
Sound and light energy travel from one place to another as waves. When this happens we say that the energy is:
transpired.
transferred.
transported.
transcommunicated.
The ear changes sound energy into:
light energy.
electrical energy.
noise energy.
heat energy.
Which part of the ear changes sound energy into another form of energy?
the cochlea
the eardrum
the auditory nerve
the small middle ear bones
Which of the following statements about animals is NOT true?
Dogs can hear whistles that we cannot hear.
Dolphins and whales use high-pitched clicks to communicate.
All animals have the same range of hearing.
Bats use their hearing to hunt prey and avoid objects.
Which of the following statements is true?
An echo is caused when sound waves are absorbed by a material.
An echo is caused when sound waves are reflected.
Materials that are good reflectors of sound are called sound insulators.
Materials that are good at absorbing sound are called insulators.
Which of the following is used to measure the loudness of a sound?
a noiseometer
a decibelometer
a sound meter
a voltmeter
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.
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.
Quiet sounds can harm the ears.
The sound near to disco speakers can be louder than a road drill.
The eardrum can be damaged by personal stereos.
A noisy factory can permanently damage the ears.
Sound is less likely to get out of a room which has:
a wooden floor.
black walls.
soft curtains and a carpet.
spotlights.
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