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Waves
Test Description: Standard 7
Instructions: Answer all questions to get your test result.
1) For refraction to occur the wave must
A
change direction
B
reflect
C
change speeds
D
enter new medium at new angle
2) The property that determines how much a wave will diffract when encounter an obstacle is
A
wavelength
B
time
C
period
D
frequency
3) When two waves collide and the resulting wave is larger the interference is
A
reflective
B
destructive
C
diffractive
D
constructive
4) A sound wave is an example of a
A
longitudinal wave
B
surface wave
C
transverse wave
D
standing wave
5) In which medium does sound travel fastest
A
water
B
air
C
metal
D
does not matter
6) The way a siren sounds as it approaches and passes you is due to the
A
frequency
B
doppler effect
C
rarefraction
D
pitch
7) Light refracts when it
A
hits your eye
B
changes speed
C
ends
8) The wave with shortest wave legnth in the electromagnetic spectrum are
A
radio
B
visable light
C
gamma
D
microwave
9) The wave with longest wave legnth in the electromagnetic spectrum are
A
microwave
B
visable light
C
xray
D
radio
10) The bending of light when it passes from one medium into another is
A
reflection
B
refraction
C
diffraction
D
isolation
*select an answer for all questions
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