Waves, Light & Information. Classwork and Homework
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1 Slide 1 / 59
2 Slide 2 / 59 Waves, Light & Information Classwork and Homework
3 Slide 3 / 59 Classwork #1: What are Waves?
4 Slide 4 / 59 1 True or False: Waves are not regular patterns of motion that are caused by a disturbance. A True B False
5 Slide 5 / 59 2 How can you produce waves in a basin of water?
6 Slide 6 / 59 3 A wave moving along a rope will cause each piece of rope to move up and down.
7 Slide 7 / 59 Homework: What are Waves?
8 Slide 8 / 59 4 How do you make a transverse wave move through a rope?
9 Slide 9 / 59 5 Explain the direction that a transverse wave moves through water and the motion of the drops of water.
10 Slide 10 / 59 6 If the surface of water is calm and no disturbance is moving across the surface, this is referred to as.
11 Slide 11 / 59 Classwork #2: Describing Waves
12 Slide 12 / 59 7 In the following picture, label all the parts of the wave:
13 Slide 13 / 59 Homework: Describing Waves
14 Slide 14 / 59 8 What is the highest point a wave will reach called? A Crest B Trough
15 Slide 15 / 59 9 What is the lowest point a wave will reach called? A Crest B Trough
16 Slide 16 / The distance from the dotted line running through the middle of the wave to either the crest or trough is called the.
17 Slide 17 / The distance between two close crests of a wave is called the.
18 Slide 18 / What makes a wave periodic?
19 Slide 19 / 59 Classwork #3: Sound
20 Slide 20 / The around you is occupied by very small objects that we call particles. You can t see them because they re too small.
21 Slide 21 / A moves through the air through a series of collisions.
22 Slide 22 / Compare and contrast the motion of particles in a transverse wave and a longitudinal wave.
23 Slide 23 / True or False: Sound is an example of a transverse wave. A True B False
24 Slide 24 / 59 Homework: Sound
25 Slide 25 / True or False: Higher pitched sounds are always louder then lower pitched sounds. A True B False
26 Slide 26 / Can sound move in outer space? Support your argument with some facts you know about space and longitudinal waves.
27 Slide 27 / 59 Classwork #4: Sight
28 Slide 28 / We need in order to see.
29 Slide 29 / So far, we learned that three things could happen to light, it can either be absorbed, bent, or.
30 Slide 30 / The sun and other light sources give off of light. They will continue on in straight paths until they collide with something else.
31 Slide 31 / 59 Homework: Sight
32 Slide 32 / Why can t we see in the dark?
33 Slide 33 / True or False: We can see an object because after the light hits the object it is reflected back to our eyes. A True B False
34 Slide 34 / 59 Classwork #5: Color
35 Slide 35 / What colors do you get after passing a beam of white light through a prism?
36 Slide 36 / True or False: All of the colors are contained within a beam of white light. A True B False
37 Slide 37 / True or False: The color we see is the color that is absorbed by the object. A True B False
38 Slide 38 / 59 Homework: Color
39 Slide 39 / The color that we see is off the object; this is why we see that color instead of all the other colors.
40 Slide 40 / A box appears red because it the color red and the rest of the other colors.
41 Slide 41 / If nothing is reflected off the surface of the object what color do you see?
42 Slide 42 / 59 Classwork #6: Mirrors
43 Slide 43 / True or False: Light reflected off the surface of a mirror will go off at a different angle then the one it hit the mirror. A True B False
44 Slide 44 / If an object is located 5 meters in front of a plane mirror, how far will the image appear behind the mirror?
45 Slide 45 / 59 Homework: Mirrors
46 Slide 46 / Which path will the beam of light take after hitting the mirror or mirrors? (The colors for the paths are just meant to make it easier to see the different paths of light, we are not asking anything about color here!) A path 1 B path 2 C path 3
47 Slide 47 / 59 Classwork #7: Refraction
48 Slide 48 / Describe what you see when you place an object like a ruler or pencil into a glass of water.
49 Slide 49 / 59 Homework: Refraction
50 Slide 50 / Why does the ruler or object placed in the water appear to be bent?
51 Slide 51 / What do we call the bending of light when it happens from moving from one material into another?
52 Slide 52 / 59 Classwork #8: Digitized Information
53 Slide 53 / Information is transmitted through waves, how does a cellphone convert from one wave to another to transmit what you are saying to someone else?
54 Slide 54 / If you needed to communicate with someone right next to you and didn t have to be quiet, what would be the easiest way?
55 Slide 55 / If your friend was away on vacation in Europe, what would be the easiest means of communication?
56 Slide 56 / 59 Homework: Digitized Information
57 Slide 57 / Binary code is comprised of 0 s and 1 s to communicate information. If we wanted to form the image of an x on a 3x3 grid what would be the string of numbers we would need to input (remember, go left to right on the top row, then left to right on the middle row, then left to right on the bottom row)?
58 Slide 58 / If you are given a 3x3 grid and the string of numbers: and told that the number 1 represents a black square and the number 0 represents a white square, what image would you have made?
59 Slide 59 / Write the following message in Morse Code: Hello World
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