Electrons & Waves Unit Review

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves
• visible light
• gamma rays

Which of the following has wavelengths longer than microwaves?

• Infrared waves
• Radio waves
• Visible light

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of:

• increasing amplitutde
• increasing wavelength
• increasing frequency

Which of the following has frequencies higher than ultraviolet rays?

• visible light
• infrared rays
• x-rays

Which of the following lists the electromagnetic waves in order of increasing wavelength?

• X-rays, visible light, radio waves
• gamma rays, microwaves, UV rays
• infrared rays, radio waves, x-rays

Which of the following lists the electromagnetic waves in order of decreasing frequency?

• X-rays, microwaves, infrared rays
• UV rays, visible light, x-rays
• infrared rays, microwaves, radio waves

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low
• high, high
• low, high
• low, low

What is the correct order of the visible light spectrum starting with the longer wavelength?

• Red, yellow, orange, blue, violet, indigo

• Violet, indigo, blue, green, yellow, orange, red

• Green, yellow, blue, indigo, red, orange

• Red, orange, yellow, green, blue, indigo, violet

What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

When an electron goes from a high level to its original energy level, it releases

• Light

• a proton

• an electron

• a charge