WorksheetsLight Waves Quiz
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
If you were to accidentally scratch the outermost part of your eye, which part would you damage?
a)
The cornea
b)
The lens
c)
The retina
d)
The pupil
2.
What role does your brain play in the process of seeing?
a)
It puts blurry images into focus.
b)
It turns black-and-white images into color.
c)
It flips upside-down images rightside-up.
d)
It flips backwards images over so you see them the correct way.
3.
Which of the following arguments identifies the best explanation about a concave lens being used to start a fire?
a)
A concave lens will focus the Sun's light into a point that will cause a piece of paper to catch on fire.
b)
Because the Sun's light comes from all directions, a concave lens will straighten the light onto the paper causing the paper to catch on fire.
c)
Because a concave lens diverges the light, the Sun's light will not focus on the paper and no fire will occur.
4.
Which description applies to light?
a)
Behaves like a wave and a particle
b)
Travels at different speeds through different mediums
c)
Is a form of energy
d)
All of the above
5.
What is an example of reflection?
a)
Stars twinkling on a clear night
b)
Using sunglasses to decrease the brightness of light
c)
Seeing an image of a nearby tree on a car
d)
Blackout curtains restricting the light in a room
6.
What is an effect of refraction?
a)
Light bounces off luminous objects
b)
The wavelength of light remains constant
c)
The apparent location of an object changes
d)
All of the above
7.
An apple looks red because it absorbs red light.
a)
True
b)
False
8.
Which statement about the image the person sees is FALSE?
a)
The person sees the image due to reflected rays.
b)
The image is the same size as the object.
c)
The image would appear the same in a convex mirror
d)
The image is sharp because the mirror is smooth.
9.
A convex lens could also be called a _____ lens.
a)
concave
b)
diverging
c)
converging
d)
diffusing
10.
What is the name of the line drawn perpendicular to the surface where a light ray strikes?
a)
incident ray
b)
reflected ray
c)
normal
d)
plane of reflection
11.
In a room lit only by a red light, a green shirt would appear to be ______.
a)
red
b)
green
c)
black
d)
white
12.
Blackout curtains are designed to keep light out of a space. These curtains are made using material that is
a)
transparent
b)
opaque
c)
translucent
13.
The point where light rays converge to a point is called the point.
a)
normal
b)
focal
c)
concave
d)
convex
14.
When light strikes a transparent material, most of the light is reflected
a)
True
b)
False
15.
Frosted glass is an example of which type of material?
a)
transparent
b)
translucent
c)
opaque
d)
radiant
16.
Light travels faster in air than in water.
a)
True
b)
False
17.
People tint windows dark to encourage __________.
a)
transmission
b)
absorption
c)
reflection
d)
transfusion
18.
In the figure shown, the light waves change direction as a result of _____.
a)
diffraction
b)
reflection
c)
refraction
d)
absorption
19.
When light travels from air to oil, it bends toward the normal.
a)
True
b)
False
20.
A lens that is thicker in the middle than at the edges is a
________________ lens.
a)
mirrored
b)
focal
c)
convex
d)
concave
21.
When white light shines through red glass, the glass _________.
a)
absorbs all red light
b)
absorbs all light except red light
c)
absorbs all green light
d)
reflects all light except red light
22.
When the three primary colors of light are mixed, _____ light is produced.
a)
cyan
b)
magenta
c)
yellow
d)
white
23.
Rainbows form due to _________ caused by droplets of water.
a)
reflection and refraction
b)
refraction and absorption
c)
refraction only
d)
diffusion
24.
What is NOT true about white light?
a)
White light is only composed of one color.
b)
White light can be separated into many colors.
c)
White light can be made by combining the primary colors of light.
d)
White light is reflected by white objects.
25.
The image below shows a green book being hit by red and green light. How will the book appear if the green light is turned off?
a)
It will appear to be green.
b)
It will appear to be red.
c)
It will appear to be yellow.
d)
It will appear to be black.
26.
What produced the light represented by ray 2?
a)
It was absorbed by the drop.
b)
It was reflected from the drop.
c)
It was refracted by the drop.
d)
It was transmitted by the drop.
27.
Which has more energy?
a)
radio/tv waves
b)
infrared
28.
What is the difference between frequency and wavelength?
a)
The shorter wavelength, the less the frequency.
b)
The longer the wavelength, the greater the frequency.
c)
The longer the wavelength, the less the frequency.
29.
Which EM waves have the longest wavelength?
a)
radio
b)
x-rays
c)
ultraviolet
d)
gamma rays
30.
What helps us to see color?
a)
rods
b)
lens
c)
cones
d)
pupil
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