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Lesson 10 Reading Two—Diffraction

Total questions: 34

Worksheet time: 19mins

Name
Class
Date
1.

What does it mean to refract?

a)

bounce off

b)

to bend

c)

curve outward

d)

reflect

2.

What happens when light hits a mirror?

a)

it makes a color

b)

it reflects

c)

it makes a rainbow

d)

it passes through

3.
a)
Diffraction
b)
Interference
4.
This image represents what kind of wave behavior?
a)
Diffraction
b)
Reflection
c)
Refraction
d)
Resonance
5.

You have expanded their understanding of light and how it helps people see by investigating phenomena involving color.

a)

true

b)

false

6.

When light shines on an object, it is reflected, absorbed, or transmitted through the __________, depending on the object’s material and the frequency (color) of the light.

a)

odor

b)

object

c)

opal

d)

octopus

7.

A wave model of light is useful for explaining brightness, color, and the frequency dependent bending of ________ at a surface between media.

a)

sound

b)

light

c)

lips

d)

legos

8.

Plant leaves look green because they scatter red light.

a)

true

b)

false

9.

Colored objects scatter only certain colors of _________ and absorb the rest.

a)

sound

b)

light

c)

lips

10.

Objects absorb some colors of light and _____________ others.

a)

see

b)

scatter

c)

score

d)

study

11.

When I see a rainbow, I am seeing reflected __________.

a)

light

b)

sound

12.

A diffraction grating is a series of equally spaced, microscopic, parallel dark lines with a ________________ area

between them.

a)

transferred

b)

transparent

c)

opaque

13.

When ___________ reaches a diffraction grating, it is absorbed at the dark lines and transmitted at the transparent areas.

a)

sound

b)

light

c)

odor

14.

Light spreads out forward in all directions.

a)

true

b)

false

15.

The diffracted ___________ travels forward and spreads out until it reached a screen.

a)

sound

b)

light

c)

time

16.

The light coming from the diffraction grating is set up so that except for a few spots, the various colors of ____________ cancel themselves out almost every place on the screen.

a)

sound

b)

light

c)

time

d)

odor

17.

Different colors of _____________ will remain intact at different places on the screen.

a)

time

b)

light

c)

space

d)

odor

18.

What is equal to the angle of incidence?

a)

Total light measured.

b)

Angle of reflection

c)

Amount of light transmitted

d)

Amount of light absorbed

19.

What angle does the light from the flashlight create?

a)

Angle of incidence

b)

Angle of reflection

c)

Right angle

d)

No angle is created

20.

Bouncing light will scatter when

a)

it is bounced off a smooth surface.

b)

it is transmitted through glass.

c)

it is bounced off a rough surface.

d)

it is turned on and off quickly.

21.

Transmission means

a)

lights is stopped at the surface of an object.

b)

lights goes through an object.

c)

light bounces off an object.

d)

light is changed to heat.

22.

What is the evidence that an object absorbs light?

a)

It turns black.

b)

It transmits the light.

c)

It reflects the image.

d)

It gets hotter.

23.

Sunglasses

a)

transmit and reflect light.

b)

transmit and scatter light.

c)

absorb and transmit light.

d)

only absorb light.

24.

Unpolished wood

a)

transmits and reflects light.

b)

transmits and scatters light.

c)

reflects light.

d)

scatters light.

25.

A piece of paper

a)

transmits and reflects light.

b)

scatters light.

c)

transmits and scatters light.

d)

reflects light.

26.

If the flashlight is placed on the 2 on the angles sheet, which spot will most likely have the highest reading from the light sensor?

a)

1

b)

2

c)

3

d)

4

e)

5

27.

Why do you feel hotter in dark color clothing than light color clothing?

a)

Light color clothing absorbs more light.

b)

Light color clothing transmits more light.

c)

Dark color clothing absorbs more light.

d)

Dark color clothing transmits more light.

28.
Light is a KIND of ENERGY.
a)
True
b)
False
29.
All light has a SOURCE, or something it comes from. 
a)
True
b)
False
30.
Which are the two type of light sources?
a)
Artificial and Natural
b)
Natural and Invented
c)
Artificial and Not Artificial
d)
All of them
31.
Which of these are examples of NATURAL sources of light?
a)
Sun 
b)
Stars
c)
Lightning
d)
ALL of them
32.
Which of these is our MAIN (most important) source of light?
a)
Lightbulbs
b)
The Sun
c)
Fire
d)
All of them
33.
How does light travel/move?
a)
In ONE direction, VERY fast
b)
In ALL directions, VERY fast
34.
_______ is when light hits and object and it BOUNCES off.
a)
Reflection
b)
Refraction