All About Waves
What term refers to the type of wave that needs a medium?
mechanical wave (like sound)
What is it called when the particles of a longitudinal wave are crowded together?
compression
What do you call the distance between two like points on a wave?
wavelength
BONUS - Worth 100 pts.
What size wavelength = more energy (shorter or longer)?
reflection
BONUS - Worth 100 pts.
Describe The Law of Reflections
What does the word perpendicular mean?
at a right angle or 90 degrees
BONUS - Worth 100 pts.
Which is an example of waves traveling perpendicularly: a rock dropped in water, sending out waves or sound waves coming from a trumpet
What do you call the disturbance that transfers energy from one place to another?
a wave
BONUS - Worth 100 pts. each
Name three things that travel in waves.
What word refers to the number of waves produced in a given amount of time?
frequency
Which frequency of waves is found when you have calm, soothing music: high or low?
low frequency
What wave interaction refers to the bending of waves around objects or through openings?
diffraction
Why does an object appear black (in color)?
the object absorbs all colors of light
BONUS - Worth 100 pts.
Why does an object appear to be white?
What word refers to the material through which a wave can move?
medium (pl. media)
BONUS- Worth 100 pts.
What are the three types of media we've discussed this unit?
What is the word for a material that light waves pass through and scatter (making objects appear blurry)?
translucent
BONUS - Worth 100 pts.
Give an example of a translucent object
Which property of waves affects loudness of a sound?
amplitude
BONUS - Worth 100 pts. each
Which property of waves affects a sound's pitch? (There are two possible answers)
What is it called when the particles of a longitudinal wave are spread apart?
rarefaction
BONUS - Worth 100 pts.
Which type of wave travels in this way (longitudinal) - sound or light?
What type of waves begin as vibrations?
sound
BONUS - Worth 100 pts.
Which wave travels faster: sound or light?
What type of wave travels in the same direction as the vibrations that produce it?
a longitudinal wave
What type of mirror makes an object appear smaller (but still upright)?
convex
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How does a convex mirror curve, outward or inward?
On a wave, what do you call the distance from the resting position to the crest?
amplitude
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What happens to volume when the amplitude of a wave increases?
Which type of interaction occurs when energy is transferred to the material it encounters?
absorption
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Describe how we see an apple as the color red?
What are the three types of mirrors?
plane, convex, and concave
BONUS - worth 200 pts.
Which type of mirror makes the image larger when an object is close to it and smaller and upside down when the object is further away
Which type of wave travels perpendicular to the direction of the source's motion?
a transverse wave
BONUS - Worth 200 pts.
What are the highest and lowest points of this type of wave called?
Define refraction. (Be specific)
Bending of waves due to a change in speed as a wave changes from one medium to another.
BONUS - Worth 100 pts.
Give an example of refraction
If you increase the wavelength, what happens to the frequency?
decreases (lower frequency)
BONUS - Worth 200 pts.
What happens to the pitch?
Choose which two of the following words describe light waves: transverse, longitudinal, mechanical, and electromagnetic
transverse and electromagnetic
Bonus - Worth 300 pts.
What colors make up white light (visible light)?
In which state of matter does sound travel the fastest and in which state of matter does sound travel the slowest?
Fastest: solid
Slowest: gas