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Vocabulary
General
Waves
Sound
Light
100
The number of vibrations per second. Think about the number of times a wave is present.
What is frequency?
100
Sound travels slowest through what medium?
What is air?
100
The top of a wave is called the what?

What is the crest?

100
When you are at the foot of a cliff and shout out, you hear your voice repeat back. What is happening?
What is an echo?
100
Describe what happens (using our vocabulary words) when white light hits a prism.
The prism refracts the light. Each color bends in a slightly different way to create a rainbow.
200
The loudness or softness of sound
What is volume?
200
What is the order of the colors on the visible light spectrum?
What is Red, Orange, Yellow, Green, Blue, and Violet?
200
The bottom of the wave is called the what?
What is the trough?
200
What state of matter does sound travel the fastest through?
What is a solid?
200
Give one example each of translucent, transparent, and opaque materials
answers will vary
300
Explain the difference between reflection and refraction.
Reflection is the bouncing of light off an object and refraction is the bending of light as it moves from one material to another.
300
What color on the visible spectrum has the longest wavelength? Think about the order of the colors. If the electromagnetic spectrum has two extremes, apply that knowledge to the visible spectrum.

What is red light?

300

A vibration that our ears can understand.

What is a sound wave?

300

The length between two parts of a wave.

What is a wavelength?
300
Describe what you notice when a straw is in a glass of water? Use your vocabulary words.
As light travels through a liquid, the object (straw) gets refracted in our eyes and appears to be bent.
400
Explain the difference between pitch and volume.
Pitch is how high or low a sound is and volume is how loud or soft a sound is.
400
What tool is used to refract light?
What is a prism?
400

The distance from one crest to the next crest or from one trough to the next trough.

What is a wavelength?

400
All sounds are made from these (They enter our ear and we hear the sound).
What are vibrations?
400
Describe the three things that can happen when light hits an object.
It is reflected, absorbed, or refracted.
500
What is the difference between translucent, transparent, and opaque?
Transparent materials allow most of the light to pass through, translucent materials allow some of the light to pass through, and opaque materials do not allow any of the light to pass through.
500

Explain why Vanta Black is used on objects that should not reflect light.

Answers may vary.

500

A range of light waves organized by frequency and wavelength.

Hint: Infrared and Radio waves are located on this.

What is the Electromagnetic spectrum?

500
The highness or lowness of sound.
What is pitch?
500
What causes the color you see when you look at an opaque object?
The color that you see is the color reflected by the object to your eye. The object absorbs all other colors.