Sources of Light and the Electromagnetic Spectrum

Which of these is a source of light?

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Tags

NGSS.4-PS3-2

NGSS.4-PS4-2

One of these is not a source of light

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Light is a KIND of ENERGY.

• True
• False

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

This type of light if produced when ultraviolet light is absorbed:

• incandescent

• bioluminescent

• phosphorescent

• flourescent

One advantage that fluorescent tubes have over incandescent bulbs is that:

• The fluorescent tubes are cooler because they use less thermal energy.

• The fluorescent tubes have toxic components.

• Incandescent bulbs are less expensive to make.

• Incandescent bulbs are brighter.

When a light ray hits a transparent object it:

• Travels straight through it.

• Is scattered by the object into different directions.

• It moves around the object.

• It is reflected back and casts a shadow.

When a light ray hits a translucent object it:

• Travels straight through it.

• It travels through it but some light is scattered.

• Travels around the object.

• Is reflected back and casts a shadow.

Which of the following has the longest wavelength?

• microwaves

• UV rays

• Infrared

• Gamma rays

Which of the following has the most energy?

• Red

• Blue

• Green

• Yellow

Which of the following has the most energy?

• X-rays

• The color green

• Microwaves

• Infrared