PHS 100 - Self Assessment

Competency #9

Compare and contrast the nature of sound and light

Learning Objective c

c.Explain the qualitative relationship between energy, period, frequency, and wavelength

Question

Write down your answer to the following question:

Global warming occurs because ultraviolet radiation (UV) enters our atmosphere and is absorbed by the earth's surface. The earth radiates back this energy in the form of infrared radiation (IR). The IR radiation is trapped by our atmosphere and warms the atmosphere.

Use the data below to determine which type of electromagnetic radiation has the shorter wavelength.

	Frequency Range
UV radiation	3 x 10¹⁵ to 30 x 10¹⁵ Hz
IR radiation	3 x 10⁹ to 30 x 10⁹ Hz

Competency #9

Compare and contrast the nature of sound and light

Question