Dasher
Dancer
Prancer
Comet
Cupid
100
Give an example of an animal that uses sonar to locate objects.
What is bats or dolphins
100
What type of matter can electromagnetic waves travel through?
What is solids, liquids, gases and vacuum
100
What type of matter can sound travel through?
What is solid, liquid and gas.
100
What part of your body vibrates when you produce sound?
What is vocal cords.
100
What type of matter does sound travel the fastest through?
What is solid.
200
__________ is the human perception of the energy a wave carries.
What is Loudness.
200
To produce sound, an object must be ____________.
What is vibrating.
200
What is the name of the line drawn perpendicular to the surface where a light ray strikes?
What is normal.
200
The speed of sound in wood is _______ the speed of sound water.
What is faster/greater than.
200
Why can you see a book?
What is because light reflects off the book into your eyes.
300
A burning candle converts ________ energy into __________ energy.
What is chemical, light
300
On the decibel scale, normal conversation is ___________.
What is 50 dB
300
The sun converts ____________ energy into _________energy.
What is nuclear, light
300
Which body part vibrates when humans speak or sing?
What is vocal cords.
300
What type of mechanical wave is sound?
What is longitudinal.
400
Name one part of the electromagnetic spectrum.
What is gamma rays, x rays, microwaves, radio waves, visible light, UV, infared
400
What type of radiation do cell phones use?
What is microwaves.
400
What does light do when it changes speed as it goes threw different mediums?
What is refracts.
400
What does light travel the fastest through?
What is a vacuum.
400
A system of using reflection of underwater sound is ___________.
What is sonar.
500
A sound wave is a series of _______________ and ______________.
What is compressions and rarefactions.
500
The law of reflection states the the angle of ____________ is equal to the angle of _______________.
What is incidence and reflection.
500
_______________ is a measure of how many wavelengths pass a certain point each second.
What is Frequency.
500
As the amplitude of sound increases, the loudness _____________.
What is increases.
500
As the frequency of a sound wave ____________, the pitch becomes lower.
What is decreases.
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