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The sun rising every morning. Its' light traveled about 93,000,00 miles through a vacuum in order to be seen.
If you accept that the space between the Earth and the Moon is lacking in atmosphere, that is, its a pretty good vacuum, then the simple fact that you can see the Moon (and Sun and Stars) is enough proof for me.
What else can I help you with?
Describe two ways in which waves travel and give an example of each?
One way waves travel is through a medium, such as water waves traveling through the ocean. Another way is through electromagnetic radiation, with a common example being light waves traveling through space.
What is the frequency of light in fused quartz if the wavelength in vacuum is 500nm?
Divide the speed of light in a vacuum (in meters/second) by the wavelength (which you must convert to meters); that will give you the frequency in hertz. The frequency will be the same for different substances.
Can you also give an example of something that accelerates while traveling at constant velocity?
Yes, an object traveling in a circular path at a constant speed is accelerating because its direction is constantly changing. An example would be a car moving along a curved road at a constant speed.
What is an object that does not give out light called?
An object that does not give out light is called a non-luminous object. This means that the object does not emit its own light but rather reflects light from another source. An example of a non-luminous object is a table.
What object doesn't give out light?
Anything that you can't see in a dark room. Like my shoes, for example.
Describe two ways in which waves travel and give an example of each?
One way waves travel is through a medium, such as water waves traveling through the ocean. Another way is through electromagnetic radiation, with a common example being light waves traveling through space.
Can you give me example of light energy?
light in a microwave, infrared light, and gamma rays.
Is vacuum the only medium for light to travel?
No. Light also travels through air, water and glass, to give just a few examples.
What is the frequency of light in fused quartz if the wavelength in vacuum is 500nm?
Divide the speed of light in a vacuum (in meters/second) by the wavelength (which you must convert to meters); that will give you the frequency in hertz. The frequency will be the same for different substances.
Give example of light energy that is not produced by electricity?
Gas light, kerosene lantern.
Can you give an example of a sentence using the word 'demonstrate'?
You'll have to demonstrate the vacuum cleaner before I'll consider buying it.
Give an example of a chemical change that produces light and heat?
you fart on a candle....
What causes light to refract Give an example form everyday life?
Sex
What is the value of c in a vacuum Give the numerical value as well as the definition?
C represents the speed of light. In a vacuum it is 299,792,458 meters per second. C is also the maximum speed at which anything in the universe can travel.
Can you also give an example of something that accelerates while traveling at constant velocity?
Yes, an object traveling in a circular path at a constant speed is accelerating because its direction is constantly changing. An example would be a car moving along a curved road at a constant speed.
Could you give me a sentence for vacuum?
I seek the vacuum of space. Who'll vacuum the living room? That's a powerful vacuum cleaner.
If the speed of light in a vacuum is 1.2 times that of the speed of light in a given material what is the index of refraction for that material?
2 (no units)
