Quarter 2 Final Exam Review

Which of the following BEST describes Electromagnetic Spectrum?

• The EM waves are arranged in random order.

• The wavelength and frequencies of the EM waves are constant.

• The EM waves are arranged according to frequency and wavelength in a gradual progression.

• The EM waves have different speed depending on the wavelength and the amount of energy

How are the types of waves arranged on the Electromagnetic Spectrum?

• By speed

• By wavelength & frequency

• In alphabetical order

• In chronological order

Which statement about electromagnetic waves is NOT true?

• Electromagnetic waves can travel without a medium.

• All types of electromagnetic waves have the same energy.

• A very small portion of the electromagnetic spectrum is visible.

• Electromagnetic waves involve changing electric and magnetic fields

How can you describe the frequency of the EM wave in the spectrum as the wavelength decreases?

• The frequency increases

• The frequency is constant

• The frequency decreases

• None of the these

What color in the electromagnetic spectrum has the longest wavelength?

• Blue

• Red

• Violet

• Yellow

Your science teacher is discussing her lesson in front of the class. She stated that electromagnetic waves have different wavelengths. Which of the following electromagnetic waves has the LEAST wavelength range?

• Infrared

• Visible light

• Ultraviolet

• X-ray

In order of the increasing wavelength, which of the following is the correct arrangement of the regions in the EM spectrum?

• Radio wave, microwave, infrared

• Infrared, microwave, radio wave

• Visible light, ultraviolet, X-ray

• Infrared, Visible light, microwave

Which one is TRUE about the relationship of frequency and energy in the Electromagnetic Spectrum?

• The greater the energy, the greater the frequency

• The lower the energy, the greater the frequency

• The energy and frequency are always the same.

• The energy is always greater than the amount of frequency.

A group of friends decided to have a hiking trip through the night. While they were still on their way to their route, they decided to use night vision goggles to see the paths. Which kind of wave is used in night vision goggles?

• Microwave

• Gamma ray

• Infrared

• Visible light

A radar system detects other aircraft, speed, and direction in which they travel by sending out a pulse of high-frequency electromagnetic waves. What type of electromagnetic waves is used in RADAR?

• Infrared rays

• Radio waves

• Microwaves

• Ultraviolet rays