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Light and Optics

Total questions: 47

Worksheet time: 29mins

Name
Class
Date
1.
Which window is opaque?
a)
Window 1
b)
Window 2
c)
Window 3
d)
None
2.

_____ is a lens that is thicker in the middle .

a)

prism

b)

convex lens

c)

concave lens

d)

mirror

3.
______ is a lens that is thicker on its edges and makes an object appear smaller?
a)
mirror
b)
convex lens
c)
concave lens
d)
prism
4.
Surface A is which type of material? 
a)
transparent
b)
translucent
c)
opaque
5.
Frosted glass is an example of a  _______ material. 
a)
transparent
b)
translucent
c)
opaque
6.
Which part of the eye controls the size of the pupil?
a)
pupil
b)
iris
c)
retina
d)
cornea
7.

Which part of the eye allows light in?

a)

Optic nerve

b)

retina

c)

pupil

d)

eyelashes

8.

What is the nerve that leads from the eye to the brain?

a)

Optic nerve

b)

Auditory Nerve

c)

Facial Nerve

d)

Cranial Nerve

9.
The colored part of the eye is called the ___.
a)
lens
b)
pupil
c)
iris
d)
cornea
10.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
11.
Which of the following electromagnetic waves is given off as heat? 
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
12.
Sunblock provides an opaque layer that prevents ______ from reaching your skin
a)
Infrared Waves 
b)
Microwaves 
c)
Ultraviolet Rays
d)
X Rays 
13.
Select the correct order of waves on the EM 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
14.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
15.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
16.

An image that forms where light seems to come from

a)

virtual image

b)

real image

c)

diffuse reflection

d)

regular reflection

17.

A mirror with a reflective surface on the inside of the curve is a

a)

concave mirror

b)

convex mirror

c)

plane mirror

d)

flat mirror

18.
Convex mirrors produce
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
19.
What type of waves are light waves
a)
longitudinal
b)
compression
c)
mechanical
d)
electromagnetic
20.
What color of visible light is bent most when it refracts?
a)
violet
b)
blue
c)
orange
d)
red
21.

Which of the following statements is true?

a)

Short wavelength means high energy.

b)

Short wavelength means low energy.

c)

Short wavelength means high amplitude.

d)

Short wavelength means low amplitude.

22.
When a wave bounces off of a surface, it is
a)
reflecting
b)
refracting
c)
diffracting
d)
all of the above
23.
A plane mirror gives you a 
a)
real image
b)
virtual image
c)
magnified image
d)
inverted image
24.
Where might you find a concave mirror?
a)
car headlights
b)
the corner of a convenience store
c)
inside a microscope
d)
in your eyeball
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 concave lens?

a)

car headlights

b)

the corner of a convenience store

c)

the peephole in your front door

d)

in your eyeball

27.
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
28.
Images that come from the crossing of light waves are
a)
real
b)
virtual
c)
imaginary
d)
magnified
29.
This type of wave can go through skin cells, but they don't go any deeper.
a)
Microwaves
b)
Ultraviolet Waves
c)
X-rays
d)
Gamma Rays
30.
This type of wave can go through soft tissue, but they don't go through dense muscle, teeth, or bones.
a)
Microwaves
b)
Ultraviolet Waves
c)
X-rays
d)
Gamma Rays
31.
This type of wave can pass through up to 6" of lead or 6' of concrete.
a)
Microwaves
b)
Ultraviolet Waves
c)
X-rays
d)
Gamma Rays
32.
This type of wave is used as cancer treatment.
a)
Radio waves
b)
Microwaves
c)
X-rays
d)
Gamma Rays
33.
Which color of visible light has the lowest frequency?
a)
red
b)
orange
c)
yellow
d)
blue
34.
The part of the eye that is covered with rods and cones is the
a)
cornea
b)
iris
c)
vitreous humour
d)
retina
35.
These cells sense color.
a)
rods
b)
cones
c)
irises
d)
humours
36.
These cells sense brightness.
a)
rods
b)
cones
c)
epithelial
d)
humours
37.

If a radio station modifies its wavelength to send a signal, the station is

a)

AM

b)

FM

c)

LM

d)

XM

38.

If a radio station modifies its wave height to send a signal, the station is

a)

AM

b)

FM

c)

HM

d)

XM

39.

The part of the eye that bends light the most is the

a)

iris

b)

pupil

c)

cornea

d)

lens

40.

The primary colors of light are

a)

red, green, indigo

b)

red, green, blue

c)

black, white, yellow

d)

magenta, cyan, yellow

41.

The primary colors of pigment in printing are

a)

red, green, indigo

b)

red, green, blue

c)

black, white, yellow

d)

magenta, cyan, yellow

42.

Mixing all the primary colors of light in equal amounts results in _________ light.

a)

Black

b)

White

c)

Yellow

d)

Indigo

43.

Mixing all the primary colors of pigment in equal amounts results in _________ pigment.

a)

Black

b)

White

c)

Yellow

d)

Indigo

44.

What does vitreous fluid do?

a)

Keep the eyeball the right shape and pressure

b)

Adjust the size of the pupil based on available light

c)

Process the color and intensity of light

d)

Carry the electrical signal of the image to the brain

45.

Which of these scientists believe light was made of particles?

a)

Robert Hooke

b)

Christian Huygens

c)

Thomas Young

d)

Isaac Newton

46.

A cataract is

a)

is a clouded lens.

b)

a deformed cornea

c)

the leading cause of adult blindness

d)

none of the above

47.

The job of a lens is

a)

reflection.

b)

refraction.

c)

diffraction.

d)

to tell the number of proton in an atom.

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