LT Blackbody Radiation Review

At which color is the object in Figure 1 giving off the greatest amount of energy?

• A) Violet

• B) Blue

• C) Green

• D) Red

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NGSS.HS-PS4-5

What colors are present in 2c above? Would this object appear reddish or bluish?

• Reddish

• Bluish

A spectral curve is a graph that displays the amount of energy given off by an object each second according to the ​ (a)   of light.

• luminosity
• intensity
• color
• wavelength

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NGSS.HS-PS4-3

Which colors are associated with higher energy output in a spectral curve?

• Red and Orange

• Violet and Indigo

• Green and Yellow

• Blue and Green

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In Figure 2a, which star gives off more blue light?

• Star C

• Star D

• Star E

• Star F

If two stars have the same temperature and size, they will have ​ (a)   blackbody curves.

• different

• similar

• opposite

• identical

Which star looks red?

• Star E

• Star C

• They both look red

• Neither looks red.

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NGSS.HS-PS4-3

Which star peaks at a longer wavelength?

• Star E

• Star C

• They peak at the same wavelength.

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NGSS.HS-PS4-1

Which star has a greater energy output?

• Star E

• Star C

• They have the same energy output.

Star E looks ​ (a)   because it

(b)  

• has a λmax in the blue range of visible light.
• emits more red wavelengths than Star F. 
• blue
• red

Tags

NGSS.HS-PS4-1

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