Light Wave LL

What is a light wave?

• a type of sound wave

• an electromagnetic wave

• a longitudinal wave

• a wave the requires a medium to travel through

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How does an increase in frequency affect the energy of a light wave?

• it decreases the energy

• it has no effect on the light wave

• it increases the energy

• it makes the wave slower

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Which of the following is true of high-energy light waves?

• they have longer wavelengths

• they travel at slower speeds

• they have shorter wave lengths

• they cannot pass through a vacuum

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What part of an atom determines the atom's emission or absorption spectra?

• The nucleus

• The proton

• The neutrons

• The electrons

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When an electron in an atom absorbs a photon, it can jump to a higher energy level. What happens when the electron returns to its original energy level.

• it emits a photon with a different wavelength

• it absorbs a photon with a higher frequency

• it emits a photon with the same wavelength as absorbed

• it disappears

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What happens to the energy of a photon as its frequency increases?

• the energy stays the same

• the energy increases

• the energy becomes zero

• the energy decreases

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When electrons release a photon it is called -

• Spectra

• Emission

• Absorption

• Vacuum

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The formula for the speed of light is: c = frequency x ___________?

• wavelength

• force

• mass

• velocity

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All light travels at the same -

• Wavelength

• Amplitude

• Frequency

• Speed

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Which characteristic of an object determines the peak wavelength that it can emit?

• Location

• Material

• Temperature

• Size