Tennessee Science Grade 7

Section 3: Wave Behavior

Self-Check Quiz - English

1
Reflection occurs when a wave __________.
A)causes ripples in a pool of water
B)compresses air particles as it travels
C)strikes an object and bounces off of it
D)bends and changes speeds as it travels
2
The __________ is an imaginary line perpendicular to the surface of a medium where a wave strikes it.
A)incidence
B)diffraction grating
C)interference
D)normal
3
__________ occurs when waves bend around a barrier.
A)Reflection
B)Refraction
C)Interference
D)Diffraction
4
Why can't you see your reflection in a brick wall?
A)Light rays are reflected in only one direction from the rough surface.
B)Reflection of light from a rough surface is regular reflection.
C)No light is reflected from a brick wall.
D)Light rays are reflected in many directions from the uneven surface.
5
The bending of a light wave as it moves from one medium into another is called __________.
A)reflection
B)diffraction grating
C)interference
D)refraction
6
Which of the following is true?
A)You can hear sounds from a room you haven't entered because of the refraction of sound waves.
B)You can see into a room that is around a corner because of the extensive diffraction of light waves.
C)You can hear sounds from a room you haven't entered because of the diffraction of sound waves.
D)You can see into a room that is around a corner because of the refraction of light waves.
7
The process in which two waves overlap and form a new wave is called __________.
A)wave joining
B)refraction
C)interference
D)diffraction
8
__________ occurs when the crest of one wave overlaps the trough of another wave.
A)Constructive interference
B)Wave cancellation
C)Amplitude shift interference
D)Destructive interference
9
__________ occurs when the crest of one wave overlaps the crest of another wave.
A)Destructive interference
B)Constructive interference
C)Rarefaction
D)Diffraction
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