Light
Light travels in _____.
waves / wavelengths
How fast does sound travel?
750 miles per hour
Sunlight has "no light", but it does give off ____ _____. This light is acutally all the colors of the rainbow.
white light
To hear sound, air must ______.
vibrate
What is the greatest source of light for Earth?
What is the speed at which light travels?
186,000 miles per second (mps)
What are the 3 mediums sound travels through.
solids, liquids, and gases
Sound and light are both forms of ______ that travel in _____.
energy that travel in waves
What body part creates the sound that allows us to hear talking?
vocal cords
The sun gives off 2 forms of energy. What are they?
heat and light
Who invented the lightbulb?
How loud or quiet a sound is, is controlled by ____.
volume
When light hits a smooth, shiny surface like a mirror it _______.
reflects / creates a reflection
Vocal cords are located in the _____.
larnyx
How many times can light travel around Earth in 1 second?
7 times in 1 second
The shortest wavelength is _____.
The longest wavelength is _____.
Violet is the shortest.
Red is the longest.
What 2 inventors invented the telephone?
Alexander Graham Bell and Thomas Watson
Light and sound travel at ______ speeds.
different
Every single person has a distinct ______.
voice
How long does it take sound to travel around Earth?
33 hours
White light is _____.
made of all the colors of the rainbow
how HIGH or LOW a sound is
pitch
What types of lenses bend light inward or outward?
concave and convex
The volume of your voice depends on how much _____ comes out of your ______.
air comes out of your lungs
How long does it take light to reach Earth from the sun?
8 minutes