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P.3.2-3.3-3.4-3.5- Reflection, Refraction, Dispersion, Color

Total questions: 28

Worksheet time: 15mins

Name
Class
Date
1.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
2.
a)
Reflection
b)
Refraction
3.
a)
Reflection
b)
Refraction
4.
Light bending as it passes through a rain drop is an example of...
a)
Refraction
b)
Reflection
5.

If you use a prism to try to disperse red light the result will be

a)

You will get white light out because of reverse dispersion

b)

You will get red light out because red light doesn't contain other colors

c)

You will get violet light out because the red light will slow down

d)

the red light will be dispersed into the colors of the rainbow

6.

Why is the spectrum of light separated into its components of color when white light is directed to a prism?

a)

Because light reflects off the prism's surface

b)

The incident white light refracts and separates into its constituent colors

c)

The white light is absorbed by the prism, separating its colors

d)

The light speeds up as it moves from air into the denser plastic material

7.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

8.
What is the difference between reflection and refraction? 
a)
Both involve light bending through a medium
b)
Reflection is light bouncing off a medium's surface and refraction is light bending through a medium
c)
Reflection is light bending through a medium's surface and refraction is light bouncing off a medium
d)
Refraction is light being absorbed in a medium and reflection is light being bent through a different medium
9.

Which of the following is example light scattering ?

( There CAN be more than 1 answer)

a)
b)
c)
d)
10.

What is this?

a)

It's a blue lion.

b)

It's a pink lion.

c)

It's a pink tiger.

d)

It's a pink bear.

11.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
12.

Among the following colors in a rainbow, which has the least energy?

a)

green

b)

orange

c)

red

d)

violet

13.

Which has the greatest energy among the colors in a rainbow?

a)

green

b)

orange

c)

red

d)

violet

14.

Red is the least bent among the seven colors because it has the ___________.

a)

lowest frequency

b)

II, III, and IV

c)

longest wavelength

d)

shortest wavelength

15.

What is called the separation of white light into different colors as it passes through prism?

a)

DOGFOUND

b)

dispersion

c)

reflection

d)

refraction

16.

Which of the following orders of visible light colors shows increasing wavelength?

a)

red, orange, yellow, green, blue, indigo, violet

b)

red, yellow, green, orange, violet, blue, indigo

c)

violet, indigo, blue, green, yellow, orange, red

d)

violet, blue, green, orange, red, indigo, yellow

17.

Does Wavelength matter when it comes to the order of the colors in a rainbow? Why, or why not?

a)

Yes, because the shorter the wavelength, the further away it is from the sun.

b)

Yes, because the shorter the wavelength, the closer it is to the sun.

c)

No, because the shorter the wavelength, the further away it is from the sun.

d)

No, because the shorter the wavelength, the closer it is to the sun.

18.
What are the 3 Primary Colors?
a)
Blue, Purple, Orange
b)
Red, Yellow, Blue
c)
Blue-Green, Green, Violet
d)
Orange, Orange, Orange
19.

The speed of light is:

a)

300,000 km/sec

b)

343 m/s

c)

3.00e10 m/s

d)

3,000,000 m/s

20.

A shirt appears yellow under normal white light conditions. What color does it appear if illuminated with cyan light?

a)

Red

b)

Green

c)

Blue

d)

Yellow

e)

Black

21.
Light travels ___________.
a)
backwards
b)
in a straight line
c)
in curves
d)
at a right angle
22.
Materials such as wood and metal do not let light travel through them. We cannot see them at all. They are said to be ______________.
a)
invisible
b)
opaque
c)
translucent
d)
transparent
23.

Which color will transmit through the filter?

a)

Red only

b)

Blue and Violet

c)

Green

d)

All colors

24.

Which color(s) does this filter transmit?

a)

No colors are transmitted.

b)

All colors but green

c)

Only green

25.

A lightyear is:

a)

How much light the Sun gives off in one year.

b)

A year in which very little happens.

c)

The time it take light to travel the distance from the Sun to the Earth.

d)

The distance light travels in one year.

26.

Which electromagnetic wave has the highest ENERGY?

a)

Sound

b)

Microwaves

c)

X Rays

d)

Gamma radiation

27.
When do you use the RGB (red, green, blue) system?
a)
Printing
b)
Painting
c)
Cell Phone screens
28.

How would a tomato look under blue light?

a)

The tomato would seem to disappear

b)

The tomato would still appear red

c)

The tomato would appear black

d)

The tomato would appear white