Question

Which property describes an electromagnetic wave and not a mechanical wave? transfers energy CORRECT

travels in a vacuum
requires a medium
has frequency
Which of the following electromagnetic waves are listed in the correct order from longest wavelength to shortest wavelength?
infrared, visible, ultraviolet CORRECT
ultraviolet, visible, infrared
visible, infrared, ultraviolet
infrared, ultraviolet, visible
Which of the following electromagnetic waves has the shortest wavelength? visible light waves
ultraviolet waves CORRECT
micro waves
infrared waves
What portion of the electromagnetic spectrum can human eyes detect?
visible light CORRECT
infrared light
infrared light and ultraviolet light
visible light and infrared light
Which kinds of waves travel fastest through dense matter?
mechanical waves CORRECT
electromagnetic waves
ultraviolet waves
radio waves

Answer 1

Electromagnetic waves do not require a medium to travel and can travel through a vacuum. Human eyes can only detect visible light. Mechanical waves, not electromagnetic waves, travel fastest through dense matter.

Step-by-step explanation:

Electromagnetic waves, unlike mechanical waves, do not require a medium to travel and can travel through a vacuum. They transfer energy and have frequency. Examples of electromagnetic waves include gamma rays, X-rays, ultraviolet waves, visible light, infrared waves, microwaves, and radio waves. The electromagnetic waves listed in the correct order from longest wavelength to shortest wavelength are infrared, visible, and ultraviolet. Ultraviolet waves have the shortest wavelength among the given options.

Human eyes can only detect visible light.

Mechanical waves, not electromagnetic waves, travel fastest through dense matter.