Waves Question Preview (ID: 3990)
Standard 7.
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A mechanical wave and electromagentic wave are the same
a) false
b) true
c)
d)
A mechanical wave moves a medium from one place to another.
a) false
b) true
c)
d)
Transverse waves have
a) crests and troughs
b) compressions and rarefractions
c) crests and rarefractions
d) troughs and compressions
Longitudinal waves have
a) compressions and rarefractions
b) crests and troughs
c) crests and rarefractions
d) troughs and compressions
The legnth of times it takes one complete wavelength to pass a fixed point is
a) period
b) cycle
c) wavelength
d) scope
When the frequency increases the wavelength
a) decreases
b) increases
c) stays the same
d) has no effect
When the period increases the wavelength
a) decreases
b) increases
c) stays the same
d) has no effect
To find amplitude measure
a) From crest to rest
b)
c) from crest to crest
d) from crest to trough
Speed equals wavelegnth times frequency gives you the speed of what
a) wave
b) period
c) frequency
d) hertz
A series of compressions and rarefractions describes what type of wave?
a) longitudinal
b) transverse
c) crest
d) trough
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