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