Waves Question Preview (ID: 3991)
Standard 7.
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For refraction to occur the wave must
a) enter new medium at new angle
b) change speeds
c) change direction
d) reflect
The property that determines how much a wave will diffract when encounter an obstacle is
a) wavelength
b) frequency
c) period
d) time
When two waves collide and the resulting wave is larger the interference is
a) constructive
b) destructive
c) reflective
d) diffractive
A sound wave is an example of a
a) longitudinal wave
b) transverse wave
c) surface wave
d) standing wave
In which medium does sound travel fastest
a) metal
b) water
c) air
d) does not matter
The way a siren sounds as it approaches and passes you is due to the
a) doppler effect
b) rarefraction
c) pitch
d) frequency
Light refracts when it
a) changes speed
b) ends
c) hits your eye
d)
The wave with shortest wave legnth in the electromagnetic spectrum are
a) gamma
b) radio
c) microwave
d) visable light
The wave with longest wave legnth in the electromagnetic spectrum are
a) radio
b) visable light
c) xray
d) microwave
The bending of light when it passes from one medium into another is
a) refraction
b) reflection
c) diffraction
d) isolation
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