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LIGHT IS A FORM OF ENERGY

I ight is a form of energy known as electromagnetic radiation. It travels in [Pg.147]

The basic unit of wave frequency is the hertz (abbreviated Hz), where 1 hertz equals 1 cycle per second and [Pg.147]

Was tWs your answer Your eyes are equipped to see only the narrow range of frequencies of electromagnetic radiation from about 700 trillion to 400 trillion hertz—the range of visible light. Radio waves are one type of electromagnetic radiation, but their frequency is much lower than what your eyes can detect. Thus, you can t see radio waves. Neither can you hear them. You can, however, turn on an electronic gizmo called a radio, which translates radio waves into signals that drive a speaker to produce sound waves your ears can hear. [Pg.148]

White light is separated into its color components by (a) a prism and (b) a diffraction grating. [Pg.149]

White light directly from light source [Pg.149]

AS I idly top this stick on the woter surface. I generate waves that emanate outward from the point of contact. Similarly, as electrons oscillate back and forth in an atom, they generate electromagnetic waves that emanate from the atom. Interestingly, the faster I tap. the closer together the waves are to one another but the speed at which they travel remains the same. [Pg.147]


Light is a form of energy and can be used to initiate the breaking of bonds in reactant molecules. [Pg.75]

There is a mind-blowing paradox at the heart of all discussions about light. Light is a form of energy that exhibits both wave-like and particle-like properties. In other words, a photon is simultaneously both a wave and a particle. We can never fully understand this paradox, but will merely say that extremely small particles exhibit a... [Pg.431]

We can readily tell that light is a form of energy by staying out in the sun for too long a time. Elegant experiments by Einstein and others clearly showed that the energy associated with light was directly proportional to the frequency of the radiation ... [Pg.30]

Introduction. Visible light is a form of energy transmitted by wave motion. The vibration of the waves of light is transverse they vibrate in a direction at right angles to that in which the waves are moving. Sound waves are longitudinal and vibrate in the same... [Pg.244]

Light is a form of energy. To create the light, another form of energy must be supplied. There are two common ways for this to occur, incandescence and luminescence. [Pg.149]


See other pages where LIGHT IS A FORM OF ENERGY is mentioned: [Pg.369]    [Pg.253]    [Pg.253]    [Pg.182]    [Pg.143]    [Pg.147]    [Pg.147]    [Pg.149]    [Pg.175]    [Pg.41]    [Pg.60]    [Pg.70]    [Pg.44]    [Pg.33]    [Pg.151]    [Pg.152]    [Pg.222]    [Pg.40]    [Pg.143]    [Pg.147]    [Pg.175]    [Pg.70]    [Pg.77]    [Pg.442]    [Pg.210]    [Pg.221]    [Pg.485]    [Pg.306]   


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