Question

8
multiple choice 2 points
which diagram correctly orders different colors of light according to the value of
property?
smallest
amplitude
red orange green blue
largest
amplitude
largest
amplitude
red orange green blue
smallest
amplitude
shortest
wavelength
red orange green blue
longest
wavelength
longest
wavelength
red orange green blue
shortest
wavelength
9
multiple choice 2 points
which type of wave requires a material medium through which to travel?
electromagnetic
infrared
sound
radio
10
multiple choice 2 points
which type of electromagnetic radiation is responsible for sunburns?
gamma rays
x - rays
microwaves
ultraviolet rays
11
multiple choice 2 points
in which part of the electromagnetic spectrum does a photon have the greatest
energy?
red
infrared
violet
ultraviolet

Explanation:

8.

The amplitude of a wave is related to its intensity (brightness for light), not its color. The wavelength of visible light colors: red has a longer wavelength, blue has a shorter wavelength. The order from longest to shortest wavelength for the given colors is Red > Orange > Green > Blue.

Electromagnetic waves (including infrared and radio waves) can travel through a vacuum. Sound waves are mechanical waves and require a material medium (like air, water, or solids) to travel.

Gamma rays are very high - energy and are not the main cause of sunburns. X - rays are also high - energy and used in medical imaging. Microwaves are used for communication and heating. Ultraviolet (UV) rays, especially UV - B, are responsible for sunburns as they can damage the skin cells.

Answer:

Longest wavelength ← Red Orange Green Blue → Shortest wavelength (the fourth option)

9.