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Mid term 3 revision

Total questions: 62

Worksheet time: 44mins

Name
Class
Date
1.
Light is a form of ______________________
a)
energy
b)
inertia
c)
currency
d)
sound
2.

What is the absence of light?

a)

Dark.

b)

A reflection

c)

A mirror

3.

Which wavelength can humans see?

a)

Microwaves

b)

Radio waves

c)

Visible light

d)

Gamma rays

4.

The colors of our rainbow combine to form visible light we see as the color

a)
blue
b)
black
c)
white
d)
yellow
5.
We see objects and their color because they
a)
refract light
b)
absorb light
c)
transmit light
d)
reflect light
6.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
7.
What are materials that let's all light through?
a)
Transparent
b)
Translucent
c)
Opaque 
8.
What are materials that lets some light through?
a)
Transparent
b)
Translucent
c)
Opaque
9.
What are materials that doesn't let any light through?
a)
Opaque
b)
Transparent 
c)
Translucent
10.
Which portion of the electromagnetic spectrum includes the range of light that can be detected by the human eye? 
a)
ultraviolet light
b)
visible light
c)
infrared light
d)
x-rays
11.
Which of these is an example of visible light?
a)
X-rays
b)
rainbow
c)
microwaves
d)
radio waves
12.
True or False: You see most of the waves of the electromagnetic spectrum.
a)
True
b)
False
13.
What do we call this tool that separates white light into the colors of the Visible Spectrum?
a)
tuning fork
b)
prism
c)
microscope
d)
graduated cylinder
14.
Wax paper or a foggy window is an example of what type of material. 
a)
transparent
b)
translucent
c)
opaque
15.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
16.

What type of wave is the light ?

a)

Longitudinal Waves

b)

Wavelengths

c)

Transverse Waves

d)

Ocean Waves

17.

Why do we see grass as green?

a)

Green light is absorbed

b)

Green light is reflected

18.

Select all that are apart of the electromagnetic spectrum.

a)

Gamma Rays

b)

X-rays

c)

Visible Light

d)

Microwave

19.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
20.
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

21.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
22.
If you are wearing a yellow shirt, what is true of the light that strikes it?
a)
Yellow is absorbed; everything else is reflected
b)
Yellow is reflected; everything else is absorbed
c)
All colors are reflected
d)
All colors are absorbed
23.
Reflection is
a)
Light bending
b)
Light bouncing
24.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
25.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
26.
What causes the pencil to look broken when placed in water?
a)
Refraction
b)
Deflect
c)
Reflection
d)
Opaque
27.
Light travels...
a)
A. in ovals
b)
B. in circles
c)
C. in squares
d)
D. in straight lines
28.

Which one of these objects would produce its own light?

a)

flowers

b)

chairs

c)

sun

d)

books

29.

Bending of light is called what?

a)

reflection

b)

refraction

c)

absorption

30.

When light gets taken in by an object, it is

a)

absorption

b)

reflection

c)

refraction

d)

transmission

31.

When light goes from one medium (material) to another, it will bend. This is called

a)

absorption

b)

reflection

c)

refraction

d)

transmission

32.

Which part of the eye is responsible for focusing light onto the retina?

a)

iris

b)

lens

c)

sclera

d)

cornea

33.

What is the opening in the center of the eye called?

a)

sclera

b)

cornea

c)

retina

d)

pupil

34.
Lens
a)
Clear tissue that covers the eye
b)
Opening of the eye
c)
Focuses the light
d)
Regulates amount of light
35.
What is letter I?
a)
Cornea
b)
Lens
c)
Vitreous humor
d)
Optic nerve
36.
What is letter F?
a)
Retina
b)
Pupil
c)
Vitreous humor
d)
Iris
37.
This part of the eye carries the message from your eye to the part of your brain that controls vision. 
a)
cornea
b)
lens
c)
optic nerve
d)
retina
38.

This structure is the back of the eye and it sends images to the optic nerve.

a)

Cornea

b)

Lens

c)

Retina

d)

Pupil

39.

This structure is the black, center part of the eye. Light enters the eye here.

a)

Iris

b)

Optic Nerve

c)

Pupil

d)

Lens

40.

Light travels in a __________ line until it refracts off an object.

a)

Curved

b)

Straight

c)

Zig Zag

d)

purple

41.

The__________ carries nerve signals from the eye to the brain.

a)

optic eye

b)

sound waves

c)

optic nerves

d)

eyelashes

42.
A block of wood is opaque.
a)
true
b)
false
43.
What is this
a)
translucent
b)
transparent
c)
opaque
44.
A clear window is opaque
a)
true
b)
false
45.
The windows that you can easily see through is transparent.
a)
true
b)
false
46.
_____?______ materials do not allow light waves to pass through.
a)
Opaque
b)
Transparent
c)
Translucent
47.
Your grandma has plants in her kitchen. They need lots of light! What type of windows should she have installed that will be best for her indoor garden?
a)
opaque windows
b)
translucent windows
c)
transparent windows
d)
no windows, just walls
48.
_____?_____ materials allow light waves to pass through easily.
a)
Opaque
b)
Transparent
c)
Translucent
49.
The water is what
a)
opaque
b)
translucent
c)
transparent
50.

The wavelength of visible light is ......................... to ..............................

a)

380 to 780 nm

b)

200 to 900 nm

c)

350 to 670 nm

d)

550 to 930 nm

51.
What is this
a)
translucent
b)
opaque
c)
transparent
52.

The organ which help you to see is ............

a)

eye

b)

nose

c)

skin

d)

muscles

53.

The optic nerve contacts ..................... to ..........................

a)

eyes to brain

b)

brain to mouth

c)

skin to brain

54.

if the light is dim ,then the pupil will ......................

a)

become bigger

b)

become smaller

c)

stay the same

55.

The ........................ is invisible wave used by doctors to image bones inside your body.

a)

X-ray

b)

microwave

c)

infrared

d)

gamma rays

56.

Light moves in straight lines in form of rays from the source of light.

a)

True

b)

False

57.

From the invisible electromagnetic spectrum................... , ..........................and ......................

a)

Blue ,green and yellow

b)

white and black

c)

microwaves, gamma rays and infrared

d)

ultraviolet ,blue and yellow

58.

We see the apple red since .....................................

a)

Since it absorbs all and reflects only red .

b)

since it absorbs all and reflects none

c)

it reflects all

59.

When light hits a geometric prism ,light is .............................. and separates into 7 colors of rainbow.

a)

refracted

b)

reflected

c)

absorbed

60.

The white light is made of .....................................

a)

7 rainbow colors

b)

only white color

c)

black and white

61.

We wear black jackets during winter because .............................

a)

it absorbs more sunlight

b)

it reflects more sunlight

62.

The electromagnetic spectrum contains both visible and invisible light waves.

a)

True

b)

False

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