Waves and the Electromagnetic Spectrum

Which statement is true as you move from the gamma side of the electromagnetic spectrum to the radio wave side?

• Both energy and frequency increase

• Energy increases, but frequency decreases

• Both energy and frequency decrease

• Energy decreases, frequency increases

What kind of electromagnetic waves have the most energy?

• radio

• gamma

• visible light

• x-rays

Which wave has a greater frequency and why?

• The blue wave because the amplitude is changing

• The red wave because the amplitude is changing

• The blue wave because it has more crests and troughs

• The red wave because it has more crests and troughs

The distance between two identical parts on adjacent waves is called _____.

• amplitude

• wavelength

• frequency

• speed

What is the relationship between energy and frequency?

• The lower the energy, the the higher the frequency

• The lower the energy, the lower the frequency

• There is no relationship

• There is an inverse relationship

What feature is shown at point A?

• Amplitude

• Wavelength

• Crest

• Trough

Humans are warm-blooded creatures. Due to this fact, humans emit what form of electromagnetic radiation?

• gamma rays

• radio waves

• UV rays

• Infrared radiation

Which of these is listed from highest energy to lowest?

• Visible light, infrared, microwaves, radio waves

• Infrared, visible light, ultraviolet, microwaves

• radio waves, microwaves, infrared, visible light

• gamma rays, visible light, x-rays, radio waves

Our star is a good model of a blackbody radiator because it emits all frequencies of light. Not all are emitted in the same quantities though. The emission spectrum of a star is related to its

• Size

• Temperature

• Color

• Age

What feature is shown at point B?

• Crest

• Trough

• Amplitude

• Wavelength