Properties of Waves
Tell me what the "top" and the "bottom" of a transverse wave is called.
crest and trough
When light BOUNCES off an object it is called ___________
Reflection
A window is transparent. What does that mean?
All light is able to pass through the object.
Describe a vibration
Moving back and fourth rapidly
Light waves always travel in a ___________ line.
Striaght
The measurement of a wave from crest to crest or trough to trough is called the...
wavelength
Which color reflects the most light? What color absorbs the most light?
White; Black
Name two translucent items.
Answers will vary
What medium allows sound to travel the fastest?
Solid
There are 4 glass bottles in front of you. One full, one half full, and the other has a few drops in it. Which glass will produce the highest pitched sound?
The glass with a few drops.
Amplitude tells us...
Two answers:
The height of a wave OR how loud a wave is
If I am working outside on a hot day, what is the best color to wear? Why?
White, it reflects the suns rays the best to keep from getting overheated.
Describe what an opaque object is.
An object that does not allow light to pass through.
Sound waves need particles in matter to _________.
Vibrate
On the visible light spectrum, which color has the SHORTEST wavelength?
Violet
How do we measure a wavelength?
From crest to crest or trough to trough
I am wearing a red shirt. Name the color my shirt is reflecting AND ALL of the colors it is absorbing.
Red
Orange, yellow, green, blue, indigo, and violet
Wax paper is a type of _________ material.
translucent
Explain why we cannot hear sound in space.
There are no particles to vibrate within the air, therefore, sound cannot travel.
Describe how our brain interprets sound through our ears. (using the eardrum, brain waves, etc.)
The sound travels to our ears, vibrates our eardrum, and tiny waves are sent to our brain.
If I were to increase the frequency of a wave, what does that mean?
I am increasing the amount of waves that pass a point per second.
Explain how a prism works.
A prism will take the white light shining on it, refract it into all of the colors on the visible light spectrum (rainbow).
Describe a situation where you may need to use a transparent material.
Answers will vary.
If I were to play guitar strings with A LOT of force, what happens to the sound?
Answers will vary.
What is the name of the visible light spectrum? (you must pronounce it correctly to get all points)
the electromagnetic spectrum