Wave Properties
Wave Behaviors
Light + Sound
Analog vs. Digital
Random
100
Which number best represents the wavelength?
1 (the length of a wave measured from crest to crest)
100
Which wave behavior does this model best represent?
Transmission (passes through)
100
What are the three flashlight colors we used to create white light?
Red, Green, Blue
100
Which signal does this model best represent?
Digital Signal
100
What are the two digits of binary code?
0 and 1
200
Which number best represents the amplitude?
2 (strength or energy of wave)
200
Which wave behavior does this model best represent?
Refraction (wave bends and changes angles as it travels through a medium)
200
Describe a real life example of the reflection of a sound wave.
An echo (sound bounces off and reflects over and over)
200
Which signal does this model best represent?
Analog signal
200
What is the order of the rainbow from longest wavelength to shortest wavelength?
Red, Orange, Yellow, Green, Blue, Indigo, Violet (7 colors)
300
Both light and sound have an amplitude. What is the common way to describe the amplitude of light?
Brightness (measured in lumens)
300
On your dry erase board, model the reflection of light.
...
300
What does it mean to amplify a sound wave?
Increase the amplitude or volume of the sound wave
300
What is the range of values for a digital signal?
Fixed range from 0 to 1
300
How many days until Winter Break begins?
8
400
On your dry erase board draw and label these two waves:
1. a high pitch sound wave
2. a low pitch sound wave
High frequency high note
Low frequency low note
400
Why should you NOT wear all black on a really sunny day in the summer? (Your explanation should also describe the specific wave behavior)
Black absorbs light and converts this trapped energy into heat making you even hotter.
400
Explain WHY sound can not travel through space.
Sound is vibrations we can feel. If there is no medium, there is no sound. Space is a vacuum meaning it is NOTHING.
400
Explain WHY analog signals are LESS RELIABLE than digital signals to encode and transmit information.
Answers vary
400
What is the date when we return from Winter Break?
January 8, 2024
500
Longitudinal wave (energy only moving left and right)
500
Explain why red light does not bend as much as violet. 
Refraction of white light bending through a glass medium and being pulled into the different colors. Violet has the most bending because it has the highest energy. Red light is the lowest energy, or slowest so it doesn't bend as much.
500
On your dry erase board draw these two waves:
1. Light wave with a short wavelength and a high amplitude
2. Light wave with a long wavelength and low amplitude
Answers vary
500
Explain WHY digital signals are more reliable than analog signals to encode and transmit information?
Answers vary
500
List the categories on the Electromagnetic Spectrum from lowest energy to highest energy. There are 7 categories.
