Exploring the Electromagnetic Spectrum

The video introduces the electromagnetic spectrum, explaining the range from radio waves with the longest wavelengths to gamma rays with the shortest. It discusses how decreasing wavelength increases frequency and provides examples of practical applications for each type of wave, such as radio waves for communication and gamma rays for cancer treatment. The video also includes interactive questions to reinforce learning and directs viewers to additional resources.

Which type of wave has the longest wavelength in the electromagnetic spectrum?

• Radio waves

• Infrared waves

• Microwaves

• Gamma rays

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As you move from radio waves to gamma rays in the electromagnetic spectrum, what happens to the wavelength?

• It increases

• It decreases

• It remains the same

• It fluctuates

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What is the wavelength range of radio waves?

• 10^4 meters to 10^-1 meters

• 10^-1 meters to 10^-4 meters

• 10^1 meters to 10^-2 meters

• 10^-2 meters to 10^-5 meters

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NGSS.HS-PS4-1

Which type of wave has the shortest wavelength?

• Ultraviolet light

• Infrared waves

• X-rays

• Gamma rays

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What happens to the frequency of waves as the wavelength decreases?

• It decreases

• It increases

• It remains the same

• It fluctuates

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NGSS.HS-PS4-1

Which type of wave has the highest frequency?

• Gamma rays

• Infrared waves

• Microwaves

• Radio waves

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What is one of the main uses of radio waves?

• Checking for forged banknotes

• Transmitting radio signals

• Satellite communications

• Cooking

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How are microwaves commonly used?

• In heaters

• In satellite communications

• In radiotherapy

• To see visible light

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What is a common use of ultraviolet light?

• In heaters

• To determine if bones are broken

• To check for forged banknotes

• To treat cancer

Which type of wave is used in hospitals to determine if bones are broken?

• Gamma rays

• Infrared waves

• X-rays

• Ultraviolet light

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