Light Dispersion and Electromagnetics Spectrum Exercises

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays
• Radio Waves
• Visible Light
• Infrared rays

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

• Radio waves
• Ultraviolet Rays
• Gamma Rays
• X-rays

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

As the frequency of an electromagnetic wave increases, the amount of energy in that wave...

• increases.
• decreases.
• stays the same.

The height of the wave is known as the _____________.

• amplitude
• crest
• trough
• wavelength

Light behaves like both a particle and a ______.

• Mass
• Wave
• Current

Which of the following has the lowest energy?

• The color yellow

• The color blue

• The color indigo

• The color orange

Which of the following has the shortest wavelength?

• microwaves

• UV rays

• Infrared

• the color blue

Which of the following has the most energy?

• Red

• Blue

• Green

• Violet

Which of the following is true for sound waves?

• They require a medium.

• They are unrelated to vibrations.

• They cannot travel through liquids

• They can travel in a vacuum