Light Question Preview (ID: 35142)
Introduction To Light And The EM Spectrum.
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Which EM wave can be seen?
a) Radio waves
b) Light waves
c) X-ray waves
d) Gamma waves
Which is the fastest traveling wave?
a) Sound
b) Ocean
c) Radio
d) Light
What happens to light waves when they enter a different medium?
a) Their speed changes
b) Their size changes
c) Their frequency changes
d) Nothing happens
Which of the following involve microwaves?
a) The visible spectrum
b) Cell phones and radar
c) Television
d) Night goggles
Which type of mirror is flat?
a) Concave
b) Convex
c) Plane
d) Rounded
Which direction does light bounce off a plane mirror?
a) one direction only
b) two directions
c) all directions
d) It doesn't bounce off; it is absorbed.
Waves that move perpendicular to the direction of matter are called
a) longitudinal waves
b) transverse waves
c) sound waves
d)
The number of waves that pass a point in one second is the
a) speed
b) amplitude
c) frequency
d) wavelength
The distance from crest to crest or trough to trough is the
a) frequency
b) amplitude
c) wavelength
d) speed
Amplitude is related to
a) the length of a wave
b) the height of a wave
c) the speed of a wave
d) the distance of a wave
The distance a wave travels in one second is known as its
a) speed
b) frequency
c) amplitude
d) spectrum
Different colors of light that can be seen are known as the
a) electromagnetic spectrum
b) visible spectrum
c) a prism
d) primary colors
Light cannot pass through what kind of objects?
a) Translucent
b) Opaque
c) Transparent
d) Clear
Waves from the sun are what type of waves?
a) Sound
b) Electromagnetic
c) Mechanical
d) Longitudinal
Which EM wave had the greatest amount of energy?
a) radio
b) x-ray
c) ultraviolet
d) gamma
What are pigments?
a) opaque substances used to color other materials
b) clear, transparent materials
c) primary colors of light
d) convex mirrors
Any surface that reflects light to form an image of an object is what?
a) prism
b) mirror
c) pigment
d) light
What refracts light and produces an image?
a) mirror
b) laser
c) lens
d) spectrum
What does a prism do to light waves?
a) reflects them
b) absorbs them
c) refracts them
d) discolors them
What does the word refract mean?
a) bounce back
b) absorb
c) bend
d) twist
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