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WorksheetsReview 1 - Sound and Hearing
Total questions: 20
Worksheet time: 10mins
Which of the following is the unit for measuring loudness of sounds?
Decibel
Volt
Joule
Meter
How are sounds made?
Sounds are made when objects vibrate.
Sounds are made when objects in vacuum room.
Sounds are made when objects stay still.
Sounds are made when objects stop moving.
Look at the experiment shown.
What happens to the end of the ruler if you flick the free end of the ruler?
It vibrates.
It stay still.
It become longer.
It become shorter.
Look at the experiment shown.
Aldi hits the tuning fork on the rubber object and place it at the surface of the water. What will happen to the surface of water?
The surface of water will vibrate.
The surface of water will stay still.
The surface of water will be smooth.
The surface of water will be warm.
How does sound travel best?
through a solid
through the liquid
through the air
through the vacuum
What is volume?
How high or low a sounds is
How loud or soft sound is
Reflected sound that comes back and is repeated
The movement back and forth
Why can't we hear sound in space?
because space has no living thing and therefore no sound.
because space has no air to vibrate and therefore no sound.
because space has no materials and therefore no sound.
because space has no music instrument and therefore no sound.
When we talk or singing, our ____________ vibrate and make sound.
vocal cords
tongue
head
ears
Why do we see lightning before we hear the thunder?
Lightning is an illusion.
Light travels faster than sound.
Sound travels faster than light.
Lightning vibrate vaster than sound.
What do sound waves travel slowest through?
Air
Metal
Water
Solids
How is the loudness of a sound measured?
We can measure the loudness of a sound using a sound-level meter.
We can measure the loudness of a sound using a vibrate-level meter.
We can measure the loudness of a sound using a microphone.
We can measure the loudness of a sound using a tuning fork.
How does sound travel?
Sound travels in a wave.
Sound travels in a light.
Sound travels in a straight line.
Sound travels in a vacuum.
Select more than one answer.
Ear defenders are used to protect ears from very loud sounds. Which the materials that can be used to make good ear defender?
cotton
foam
wool
silk
newspaper
Look at the picture shown.
What is the source of sound of this music instrument?
the air in the box
the wood attached on the string
the string
the wood that encloses the box
Look at the picture shown.
This is a musical instrument that makes sound by __________.
rubbing it
hitting it
plucking it
blowing it
How does astronaut communicate with the scientists in the spaceship?
using a radio
using a body language
using speaker
using smartphone
(True or False)
Small vibration produce soft sounds.
True
False
What is the level at which sound damages your ears?
more than 120 dB (decibel).
less than 120 dB (decibel).
between 10-40 dB (decibel).
between 40-80 dB (decibel).
Andy and Budi made a telephone using two cans and a string. It was a very long string. Andy spoke softly into the can. "I can hear you!' Budi said back.
How can this happen?
Sound waves travel through a vacuum.
Budi talked so loudly that Andi could hear her without the phone.
Sound waves travel through solids like the string.
Sound waves travel from high to low.
(True or False)
A sound that bounces off a surface is called an echo.
True
False
