8th Grade Chapter 4: Question Preview (ID: 27386)

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Sound waves can only travel through matter.
a) true b) false c) d)
The area of a sound wave where the particles are close together is called
a) compression b) rarefaction c) frequency d) amplitude
The distance betweeen one point on a wave and the nearest point just like it is called
a) frequency b) wavelength c) amplitude d) pitch
The speed of sound waves is affected by
a) the type of material it's traveling through b) the temperature of the air c) the object making the sound d) both a and b
Sound waves travel faster in cold air than in warm air.
a) true b) false c) d)
The middle ear is made up of all of these except
a) ear drum b) hammer c) cochlea d) stirrup
What part of the ear amplifies sound?
a) outer ear b) middle ear c) inner ear d) all of the above
The outer ear
a) collects sound waves b) amplifies sound c) transmits nerve signals to the brain d) is only useful for getting in the way of the curling iron
A sound wave with a higher frequency has a lower pitch.
a) true b) false c) d)
When your vocal chords vibrate, it produces sound that makes up your voice.
a) true b) false c) d)
Loudness is measured by the
a) amplitude scale b) frequency scale c) Richter scale d) decibel scale
The more energy a sound wave has, the higher the
a) amplitude b) frequency c) wavelength d) pitch
A way that we can use sound waves is
a) echolocation b) sonar c) ultrasounds d) all of the above
Light is a type of wave called ___ waves.
a) longitudinal b) electromagnetic c) electric d) radiation
Light can travel through a vacuum.
a) true b) false c) d)
Light waves travel through matter slower than in a vacuum.
a) true b) false c) d)
The entire range of electromagnetic wave is called the
a) rainbow b) visible light spectrum c) radioactive spectrum d) electromagnetic spectrum
Light travels only to either side of a source.
a) true b) false c) d)
If something doesn't emit light, how do we see it?
a) all things emit light b) we can't see it c) light waves reflect off of it d) our eyes have permanent night vision
When interactions with a material convert light energy into other forms, we say it's been
a) absorbed b) transmitted c) reflected d) refracted
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