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8J - Light - Review

Total questions: 46

Worksheet time: 31mins

Name
Class
Date
1.
Can travel through matter (gas, liquid, solid) but not space. 
a)
light
b)
sound
2.
Can travel through matter (gas, liquid, solid) and empty space. 
a)
sound
b)
light
3.
When light shines through a prism it creates a ________________
a)
colors
b)
ROY G. BIV
c)
spectrum
d)
electromagnetic wave
4.
The highest point on a wave
a)
trough
b)
amplitude
c)
crest
d)
wavelength
5.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
6.
What is reflection in simple terms?
a)
Soaks up light
b)
Passes through
c)
light bounces off
7.
In a well lit room, your pupils will _____________________. 
a)
dilate
b)
shrink
c)
change color
d)
not change color
8.
Wax paper or a foggy window is an example of what type of material. 
a)
transparent
b)
translucent
c)
opaque
9.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
10.
What is a vacuum? 
a)
A space with only air in it
b)
A space with NO matter at all present
c)
A machine you use to do your chores
11.

Light refracted __________ normal when move from less dense to more dense mediums.

a)

towards

b)

away from

12.

Light refracted __________ normal when move from more dense to less dense mediums.

a)

away from

b)

towards

13.

Lights does not refracted when angle of incident is _______ to ______.

a)

equal, 90o

b)

equal, 45o

c)

not equal, 90o

d)

not equal, 45o

14.
Sound waves move faster than light waves.
a)
True
b)
False
15.
The _________ of a wave is simply the length of one complete wave cycle.
a)
amplitude
b)
wavelength
c)
trough
d)
crest
16.
The high points on waves are called...
a)
troughs
b)
crests
c)
zeniths
d)
wavelengths
17.
As the wavelength of a wave gets longer, the frequency...
a)
increases
b)
decreases
c)
is not related
d)
stays the same
18.
What is the lowest part of a wave?
a)
trough
b)
crest
c)
point of origin
d)
compression point
19.
Amplitude reflects the amount of ______________ in a wave.
a)
energy
b)
compression
c)
refraction
d)
speed
20.
Which wave has a greater frequency?
a)
A
b)
B
21.

According to laws of reflection,

a)

angle of incidence > angle of reflection

b)

angle of incidence < angle of reflection

c)

angle of incidence = angle of reflection

d)

both 1 and 2

22.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
23.

What type of reflection describes how light reflects off an uneven surface

a)

real reflection

b)

concave reflection

c)

diffuse reflection

d)

regular reflection

e)

Non of the above

24.

The picture shows which type of reflection?

a)

Specular

b)

X-ray

c)

Diffuse

d)

Normal

25.

The ray of light that strikes a mirror

a)

Reflected Ray

b)

Incidence Ray

c)

Angle of Incidence

d)

Angle of Reflection

26.

The ray that bounces off the mirror.

a)

Angle of Reflection

b)

Incidience Ray

c)

Reflected Ray

d)

Angle of Reflection

27.

The angle between the incident ray and the normal. (X on the diagram)

a)

Angle of X-Ray

b)

Angle of Reflection

c)

Angle of Incidence

d)

Angle of Normal

28.

The picture shows which type of reflection?

a)

Diffuse

b)

X-ray

c)

Normal

d)

Specular

29.

True or False: This diagram shows the correct position of the mirrors so that the light hits the target

a)

True

b)

False

30.

White light is made up of all of the colors of the rainbow

a)

True

b)

False

31.

What color of light do you get by combining red, green, and blue light?

a)

Black Light

b)

White Light

c)

Ultraviolet Light

d)

Infrared Light

32.

What color is produced when mixing cyan, yellow, and magenta inks (pigments).

a)

White

b)

Black

c)

Blue

d)

Green

33.
What are the three primary colors of light?
a)
Red, Green, Blue
b)
Green, Yellow, Blue
c)
Cyan, Magenta Yellow
d)
Cyan, Magenta, Black
34.
What are the three secondary colors of light?
a)
Red, Green, Blue
b)
Green, Yellow, Blue
c)
Cyan, Magenta, Yellow
d)
Magenta, Yellow, Black
35.

When the three primary colors mix they produce?

a)

Red, Green, Blue

b)

Black

c)

White

d)

Magenta, Yellow, Cyan

36.
A blue shirt looks blue because...
a)
it absorbs blue and reflects all the colors
b)
it reflects blue and absorbs all the other colors
c)
it absorbs cyan and reflects all the other colors
d)
it reflects cyan and absorbs all the other colors
37.

#3 Refers to the circular structure that surrounds the pupil and regulates the amount of light entering the eye.

a)

Cornea

b)

Pupil

c)

Retina

d)

Iris

38.

#1 Refers to the clear tissue that covers the front of the eye

a)

Retina

b)

Cornea

c)

Pupil

d)

Iris

39.

#7 Refers to the part of the eye that carried visual information from the eyeball to the brain

a)

lens

b)

optic nerve

c)

retina

d)

sclera

40.

# 5 refers to the layer of receptor cells at the back of the eye in which the image is focused

a)

Retina

b)

Lens

c)

Optic Nerve

d)

Lens

41.

black circle, allows light to enter the eye

a)

iris

b)

pupil

c)

optic nerve

d)

retina

42.

Which part is #4?

a)

pupil

b)

iris

c)

cornea

d)

lens

43.

5.Which diagram correctly shows a ray of light passing through a rectangular glass block?

a)
b)
c)
d)
44.

4.The diagram shows a ray of light entering a block of glass.

Which numbered angles are the angles of incidence and of refraction?

a)
b)
c)
d)
45.

6.A man sees a stone at the bottom of a pool of water.

Which path could be taken by light from the stone to the man?

a)

A

b)

B

c)

C

d)

D

46.
Light travels ___________.
a)
backwards
b)
in a straight line
c)
in curves
d)
at a right angle

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