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WorksheetsWaves and Optics
Total questions: 75
Worksheet time: 3hrs 4mins
Name
Class
Date
1.
All electromagnetic waves have the same...
a)
frequency
b)
speed
c)
wavelength
d)
energy
2.
electromagnetic waves with the longest wavelengths are
a)
gamma rays
b)
x-rays
c)
infrared waves
d)
radio waves
3.
which of the following does NOT belong in the electromagnetic spectrum:
a)
X-ray
b)
sound wave
c)
ultra violet rays
d)
microwaves
4.
In visible light, which color has the longest wavelength?
a)
Red
b)
Violet
c)
Yellow
d)
Green
5.
Electromagnetic waves________________travel through space.
a)
Never
b)
Cannot
c)
Can
d)
Wish they could
6.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude
7.
The acronym (letters) used to remember visible light is____________
a)
KTPERRY
b)
ROYGBIV
c)
DOGPOUND
d)
ROMERO
8.
_____________________light is the only type of EM wave detected by the human eye.
a)
Red
b)
Gamma
c)
Microwave
d)
Visible
9.
The orange line is measuring the _________________________.
a)
wavelength
b)
amplitude
c)
crest
d)
trough
10.
_______ carry the greatest amount of energy.
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
11.
The higher the frequency the ______ the energy.
a)
higher
b)
lower
c)
neither, stays the same
12.
Select the correct order of waves on the Electromagnetic Spectrum
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
13.
Which of the following occurs as a light wave bends when it passes from one medium into another?
a)
constructive interference
b)
refraction
c)
destructive interference
d)
reflection
14.
Solve this problem using the equation:
c = λf Calculate the wavelength of light that has a frequency of 5.2 x 1012/s. The speed of light is 3.00 x 108 m/s.
c = λf Calculate the wavelength of light that has a frequency of 5.2 x 1012/s. The speed of light is 3.00 x 108 m/s.
a)
5.8 x 10 -5 m
b)
5.8 x 10 -7 m
c)
5.19 x 10 14 m
d)
1.56 x 10 23 m
15.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
16.
Solve this problems using the equation:
C = λf
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?
C = λf
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?
a)
6.59 x 10-28 m
b)
1.01 x 10-6 m
c)
3.32 x 10-3 m
d)
302 m
17.
An argon ion laser emits light at 488 nm. What is the frequency of this radiation? (1m = 1.0 x 109 nm)
a)
6.15 x 105 Hz
b)
6.15 x 1014 Hz
c)
3.00 x 1020 Hz
d)
2.05 x 106 Hz
18.
A converging lens has a focal length of 30 cm. A 5 cm tall candle is placed at a distance of 10 cm in front of the lens. Determine the image distance.
a)
- 45 cm
b)
-30 cm
c)
-15 cm
d)
6 cm
19.
A real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
20.
Which of the following items would work well in space?
a)
A. flashlight
b)
B. radio
c)
C. guitar
d)
D. drum set
21.
The law of reflection says that the angle of incidence is always ______ the angle of reflection
a)
greater than
b)
less than
c)
equal to
22.
Speed of light in a vacuum is
a)
represented by the symbol "c"
b)
3.00 X108 m/s
c)
is constant
d)
all answers are correct
23.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
24.
A mirror with a surface that curves inward like the inside of a bowl
a)
concave mirror
b)
convex mirror
c)
plane mirror
d)
flat mirror
25.
Where might you find a convex mirror?
a)
car headlights
b)
the corner of a convenience store
c)
inside a microscope
d)
in your eyeball
26.
Where might you find a convex lens?
a)
car headlights
b)
the corner of a convenience store
c)
inside a microscope
d)
in your eyeball
27.
If an object is inside of the focal length, then the image formed is __________
a)
virtual, inverted
b)
virtual, upright
c)
real, inverted
d)
real, upright
28.
If an object is outside of the focal length, then the image formed is __________
a)
virtual, inverted
b)
virtual, upright
c)
real, inverted
d)
real, upright
29.
Diffraction is
a)
The distortion of a wave by passing through an object
b)
The reflection of a wave from a mirror
c)
The bending of a wave around a barrier
d)
The slowing down of a wave when entering a new medium
30.
If the distance of the image from the lens (di) is positive. The image is considered....
a)
Real
b)
Virtual
31.
In the thin lens equation, do represents
a)
Distance of the object from the lens
b)
Distance of the image from the lens
32.
What type of image is generated?
a)
No Image
b)
Real
c)
Virtual
d)
Vague
33.
Where will the image form?
a)
Greater than 2f
b)
On 2f
c)
Between 2f and f
d)
Behind the mirror
34.
What is the angle of reflection if the incident angle is 35o?
a)
55o
b)
25o
c)
350
d)
90o
35.
What is common with all electromagnetic and mechanical waves?
a)
They travel at the same speed
b)
They transfer energy
c)
They are all longitudinal waves
d)
They are all transverse waves
36.
If an object is located 15 cm from the lens and the focal point is also at 15 cm, what kind of image is formed?
a)
Real
b)
Virtual
c)
No image
37.
What happens to the speed of a light ray when it enters a more dense material?
a)
It slows down
b)
It speeds up
c)
It stays the same
38.
If Jean is standing 3 feet from a plane mirror, how far is Jean's image located?
a)
1 foot
b)
3 feet
c)
6 feet
d)
9 feet
39.
What are the properties of the image of a plane mirror?
a)
Real, Enlarged
b)
Virtual, Enlarged
c)
Real, Same Size
d)
Virtual Same Size
40.
An image is located at 5 cm from the lens and the focal length is 3 cm. Where is the object located?
a)
3/15 cm
b)
2/15 cm
c)
5 cm
d)
7.5 cm
41.
The energy of a water wave is most closely related to its
a)
frequency
b)
period
c)
wavelength
d)
amplitude
42.
A student in a band notices that a drum vibrates when another instrument emits a certain frequency note. This phenomenon illustrates
a)
reflection
b)
refraction
c)
resonance
d)
doppler effect
43.
Sound is an example of a
a)
transverse wave
b)
longitudinal wave
c)
focal wave
d)
electromagnetic wave
44.
An image that forms at a location from which the light rays appear to come but do not actually come
a)
real
b)
virtual
c)
critical
d)
focal
45.
What is the velocity of light in alcohol (n = 1.36)?
a)
2.2 x 108 m/s
b)
3 x 108 m/s
c)
4.08 x 108 m/s
d)
1.36 x 108 m/s
46.
What is happening in this picture?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
47.
What is happening in this picture?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
48.
What is happening in this picture?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
49.
The bending of light as it enters a new medium.
a)
Absorption
b)
Diffraction
c)
Reflection
d)
Refraction
50.
______________________ occurs when waves combine to create a wave with a LOWER amplitude.
a)
Diffraction
b)
Constructive interference
c)
Destructive interference
d)
Refraction
51.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
52.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
53.
Unlike mechanical waves, EM waves can travel through
a)
a vacuum
b)
water
c)
the ground
d)
air
54.
Determine the wavelength of this wave?
a)
1m
b)
2m
c)
3m
d)
4m
55.
The measure of cycles per second is called the ____________.
a)
period
b)
frequency
c)
wavelength
d)
velocity
56.
The amount of time for one wave cycle to occur is called the ____________.
a)
wavelength
b)
trough
c)
period
d)
frequency
57.
What is the approximate speed of sound in normal air?
a)
34 m/s
b)
340 m/s
c)
30,000 m/s
d)
300 million m/s
58.
Concave mirrors can create virtual and real images.
a)
True
b)
False
59.
Convex mirrors can create real images.
a)
True
b)
False
60.
If a candle is placed at 2f in front of a converging lens, the image
a)
will appear at f on the opposite side of the lens
b)
the image will appear at 2f on the opposite side of the lens
c)
the image will appear between f and 2f on the opposite side of the lens
d)
the image will not appear
61.
Convex lenses can produce...
a)
Real, erect images
b)
Virtual, inverted images
c)
Real, inverted images
d)
no images form
62.
Which is the angle of refraction?
a)
Angle 1
b)
Angle 2
63.
Which is the angle of incident?
a)
Angle 1
b)
Angle 2
64.
An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is
a)
virtual.inverted
b)
virtual,upright
c)
real,inverted
d)
real,upright
65.
What is the index of refraction of a refractive liquid if the angle of incidence in the air is 35 degrees and the angle of refraction is 14 degrees?
a)
1.33
b)
2.21
c)
2.37
d)
1.72
66.
Light has the highest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
67.
Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
68.
According to Willebord Snell, light passing from air to glass will cause the light to
a)
maintain its original speed
b)
accelerate while it is in glass
c)
increase its speed
d)
reduce its speed
69.
The image appears when
a)
all 3 rays cross
b)
at point F behind the lens
c)
at point 2F behind the lens
70.
What type of image does this lens form?
a)
Virtual image
b)
Real Image
c)
No Image
71.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
72.
This is an example of a __________ mirror.
a)
Concave
b)
Convex
c)
Plane
d)
Magnifying
73.
Which type of lens is a magnifying glass?
a)
convex
b)
concave
c)
plane
d)
optical
74.
______ is a lens that is thicker on its edges, diverges light and makes ______________ images
a)
A plane lens / virtual
b)
A convex lens / real
c)
A concave lens / virtual
d)
A prism / real
75.
Which of the following allows fiber optic cables to transmit data?
a)
total bending of light
b)
total dispersion of light
c)
total internal combustion
d)
total internal reflection
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