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Worksheets

Digital and Analog Communication

Total questions: 30

Worksheet time: 29mins

Name
Class
Date
1.

The Law of Reflection says that the angle of incidence is ___________________________ the angle of reflection.

a)

equal to

b)

more than

c)

less than

2.

The Law of Refraction says that as the angle of incidence increases, the difference between the angle of incidence and the angle of refraction _________________________.

a)

decreases

b)

increases

c)

stays the same

3.

If an angle of incidence is 15 degrees, what is the angle of reflection?

a)

30

b)

25

c)

15

d)

50

4.

If the angle of incidence is 34 degrees, what is the angle of reflection?

a)

86

b)

34

c)

15

d)

50

5.

If the angle of incidence is 76 degrees, what is the angle of reflection?

a)

15

b)

50

c)

34

d)

76

6.

If the angle of incidence is 10, which is most likely the angle of refraction: 9, 76, or 90?

a)

9

b)

76

c)

90

7.

If the angle of incidence is 80, which is most likely the angle of refraction: 15, 50, or 76?

a)

15

b)

50

c)

76

8.

A wave is reflected by the material it hits when it ______________________ back.

a)

bends

b)

bounces

c)

rotates

9.

A wave is refracted when it goes between two materials causing it to ______________.

a)

rotate

b)

bend

c)

reflect

10.

What is happening in this image?

a)

Reflection

b)

Refraction

c)

Total Internal Reflection

11.

What is happening in this image?

a)

Refraction

b)

Reflection

12.

What happens when a wave stops refracting at a certain angle and only reflects?

a)

Reflection

b)

Refraction

c)

Total Internal Reflection

d)

Total Internal Refraction

13.

What material uses total internal reflection to send waves through cables?

a)

Copper Fibers

b)

Optic Fibers

c)

Aluminum Fibers

d)

Optical Illusions

14.

waves with limited values that are computerized and easier to work with

a)

digital

b)

analog

15.

continuous waves with more exact values that are real life and harder to work with

a)

digital

b)

analog

16.

clock with numbers only, regular light switch, volume control buttons, etc.

a)

digital examples

b)

analog examples

17.

clock with hands, dimmer light switch, volume control nob, etc.

a)

digital examples

b)

analog examples

18.

What kind of wave is shown in the image?

a)

digital

b)

analog

19.

What kind of wave is shown in this image?

a)

Digital

b)

Analog

20.

What should be increased to make information being sent through digital waves flow more continuously?

a)

Sampling

b)

Amplitude

c)

Wavelength

21.

Which letter is this: 01100

a)

J

b)

L

c)

F

d)

M

22.

Which letter is this: 10000

a)

M

b)

P

c)

C

d)

J

23.

Which letter is this: 00111

a)

N

b)

C

c)

G

d)

F

24.

Which letter is this: 11010

a)

G

b)

P

c)

R

d)

Z

25.

Which letter is this: 00001

a)

I

b)

E

c)

A

d)

O

26.

Which letter is this: 01000

a)

J

b)

H

c)

M

d)

P

27.

Which letter is this: 00101

a)

A

b)

E

c)

I

d)

O

28.

Which letter is this: 10010

a)

S

b)

R

c)

A

d)

C

29.

Which letter is this: 00110

a)

Q

b)

B

c)

F

d)

R

30.

Which letter is this: 10100

a)

M

b)

W

c)

T

d)

G