Sound 1
Light 1
Sound 2
Light 2
Short Answer
100
In order for sound to occur, an object and matter must ____________________. (question #2)
vibrate
100
________________ is a form of energy that you can sometimes see. (question # 13)
light
100
An ______________ is a sound wave reflected back to its source. (question #1)
echo
100
The band of colors you see in a rainbow is know as the ____________________. (question #15)
visible spectrum
100
Explain why you see lightening before you hear the thunder. (question #12)
Light travels faster than sound.
200
Sound waves are __________________ when they bounce back from an object. (question # 7)
reflected
200
Evidence tells scientists that light is made up of bundles of energy called _________________. (question # 14)
photons
200
The loudness or softness of a sound is its _______________. (question #3)
volume
200
An _________________ is a copy or likeness of an object. (question #17)
image
200
What is the defintion of a lens? (question # 23)
A curved piece of clear material that refracts light waves.
300
Sound is only produced when it travels through ____________________. (question # 8)
matter
300
A ________________ can separate white light into the colors of the visible spectrum. (question # 16)
prism
300
One ______________ measures one back and forth movement of a vibration. (question #4)
cycle
300
A mirror with a flat, smooth surface is called a _____________________. (question #18)
plane mirror
300
What is the definition of a concave lens? (question #24)
A lens that is thin in the middle and thick at the edges.
400
What does the number of vibrations per second of a sound wave determine? (question #9)
frequency
400
The ________________ is the point where reflected light rays from a concave mirror come together in front of the mirror. (question #20)
focal point
400
A __________________ is produced by vibrations and carries sound. (question #5)
sound wave
400
A ___________________ has a reflecting surface that curves inward at the middle. (question #19)
concave mirror
400
What is the definition of a convex lens? (question #25)
A lens that is thick in the middle and thin at the edges.
500
Which use of sound waves depends on the fact that sound waves are reflected? Sonar, ultrasound, or both? (question #10)
both
500
The bending of a light wave as it moves from one material to another is called _________________. (question #22)
refraction
500
_________________ is how high or low sound is, determined by frequency.(question #6)
pitch
500
A ___________________ has a reflecting surface that curves outward like the outside of a spoon. (question #21)
convex mirror
500
Sounds about 135 ______________ can damage ears. (question #11)
decibels
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