What is Sound?
How Sound Travels
What is Light?
How Light is Reflected
Bending Light
100
The number of vibrations per second of a sound wave determine
What is frequency?
100
You only hear sound that travel through
What is Matter?
100
Small bundles of energy that make up light
What are photons?
100
being bounced off objects
What is how light is reflected?
100
Bends light by acting like the water in the container
What is Lens?
200
Sound waves are _________ when they bounce back from an object.
What is Reflected?
200
Sound travels in _________, which are produced by vibrations.
What are waves?
200
Seeing a flash of lightning before hearing the thunder is evidence that
What is light travels faster than sound?
200
You see an _________ in a mirror because light waves are reflected
What is an Image?
200
Lens that curve inward
What is Concave?
300
Sounds above ________ decibels can damage your ears.
What is 130?
300
Use of sound waves depend on the fact that sound waves are reflected
What are sonar and ultrasound?
300
Scientists agree that light has properties of both
What is waves and particles?
300
Device that produces powerful light waves that are all the same and all lined up
What is a Laser?
300
Person who can form clear images of close objects but not of distant objects
What is Nearsighted Person?
400
Units sound is measured in
What is Decibels?
400
Equals one frequency cycle per second
What is Hertz (Hz)?
400
The colors of visible spectrum
What are Red, Orange, Yellow, Green, Blue, Indigo and Violet?
400
Three types of mirrors
What is convex, concave and plane?
400
The bending of a light wave as it moves from one material to another is called
What is Refraction?
500
The strength of a sound
What is its Intensity?
500
Sound travels fastest through
What is Solids? (Sound travels slower through liquids and slowest through gases)
500
Light is described as
What is a type of electromagnetic wave, has properties of both particles and waves and travels more quickly than anything else does.
500
The point were all light rays come together at one point
What is Focal Point?
500
Items look darker when they are wet because
What is less light is coming from them.
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