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Light Yr 8

Total questions: 36

Worksheet time: 19mins

Name
Class
Date
1.
A cut piece of clear glass or plastic in the form of a triangle or other geometric shape.
a)
Person
b)
Prison
c)
Prism
d)
Preacher
2.
When light strikes an object with a rough surface, photons bounce off at random angles.
a)
Occer
b)
Scope
c)
Scattering
d)
Scattegories
3.
A region that contains few or no particles
a)
Vacuum
b)
Velocity
c)
Velcro
d)
Volcano
4.
Allows little to no light through.
a)
Transparent
b)
Translucent
c)
Opal
d)
Opaque
5.
Curve Out
a)
Converse
b)
Concave
c)
Convex
d)
Convection
6.
The bending of waves as they pass from one substance into another.
a)
Reaction
b)
Reflection
c)
Refraction
d)
Repost
7.
Band of color in a rainbow, or from a light passing through a prism.
a)
Spectrum
b)
Space
c)
Prism
d)
Refraction
8.
The term for any wave that hits a surface and bounces off
a)
Transparent
b)
Translucent
c)
Refraction
d)
Reflection
9.
Blurs light as it passes through
a)
Transparent
b)
Translucent
c)
Opaque
d)
Refraction
10.
Allows most light through
a)
eflection
b)
Refraction
c)
Translucent
d)
Transparent
11.
A substance through which light travels.
a)
Wavelength
b)
Opaque
c)
Frequency
d)
Medium
12.
Light is a kind of.....
a)
reflection
b)
energy
c)
heat
d)
matter
13.
If a black and white car were in the parking lot all day. Compare the temperatures of the two cars.
a)
The black car would be cooler.
b)
The white car would be hotter.
c)
The black car would be hotter.
d)
They would be the same
14.
According to the Law of reflection, a light ray striking a mirror
a)
continues moving through the mirror in the same direction
b)
moves into the mirror at a slightly different angle
c)
bounces off the mirror toward the direction it came from
d)
bounces off the mirror at the same angle it hits.
15.
The fact the two angles are the same is an example of....
a)
Refraction
b)
Angle of Incidence
c)
Law of reflection
d)
Magnification
16.

The sunset is red due to ......

a)

Reflection

b)

Water particles

c)

Refraction

d)

Aliens

17.
Why does an apple appear red?
a)
All colors are absorbed & none are reflected
b)
All colors are absorbed except for blue, which is reflected
c)
All colors are reflected and none are absorbed
d)
All colors are absorbed except for red, which is reflected
18.
How does light travel
a)
It curves around corners
b)
Really slow
c)
In a straight line
d)
In circles
19.
Objects that reflect ALL colors will appear _____?
a)
Black
b)
White
c)
Gray
d)
Multi-colored
20.
Objects that ABSORB all colors of light will appear _______.
a)
white
b)
black
c)
multi-colored
d)
gray
21.
This diagram best represents 
a)
reflection
b)
refraction
c)
absorption
d)
diffusion
22.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
23.
What is C?
a)
Angle of incidence
b)
Angle of reflection
c)
Incident ray
d)
Reflected ray
24.
What is E?
a)
Angle of incidence
b)
Angle of reflection
c)
Normal
d)
Reflect ray
25.

Which part is #2?

a)

iris

b)

cornea

c)

retina

d)

lens

26.

Which part is #3?

a)

sclera

b)

cornea

c)

retina

d)

lens

27.

Which part is #4?

a)

pupil

b)

iris

c)

cornea

d)

lens

28.

Which part is #5?

a)

pupil

b)

iris

c)

cornea

d)

lens

29.

Which part is #6?

a)

sclera

b)

cornea

c)

retina

d)

lens

30.

Which part is #7?

a)

sclera

b)

optic nerve

c)

cornea

d)

retina

31.

What does the optic nerve do?

a)

transmit impulses from retina to brain

b)

helps the eye focus

c)

receives light and sends it to brain

d)

transmits light rays to retina

32.

What does the retina do?

a)

transmit impulses from retina to brain

b)

helps the eye focus

c)

receives light and sends it to brain

d)

transmits light rays to retina

33.

What does the cornea do?

a)

transmit impulses from retina to brain

b)

helps the eye focus

c)

receives light and sends it to brain

d)

transmits light rays to retina

34.

What does the pupil do?

a)

protects the eye

b)

helps the eye focus

c)

allows light to enter eye

d)

regulates how much light enters the eye

35.

What does the lens do?

a)

transmits light rays to retina

b)

helps the eye focus

c)

allows light to enter eye

d)

regulates how much light enters the eye

36.

What does the iris do?

a)

transmits light rays to retina

b)

helps the eye focus

c)

allows light to enter eye

d)

regulates how much light enters the eye

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