What are electromagnetic waves made up of?

• Vibrating sound waves

• Vibrating electric and magnetic fields

• Static electric fields

• Static magnetic fields

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Which type of electromagnetic wave has the longest wavelength?

• Ultraviolet rays

• Radio waves

• X-rays

• Gamma rays

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What is the photoelectric effect?

• The absorption of light by a material

• The bending of light as it passes through a medium

• The emission of electrons from a metal when light shines on it

• The reflection of light from a surface

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Which electromagnetic wave is used in radar technology?

• Infrared rays

• Microwaves

• Ultraviolet rays

• Gamma rays

What type of electromagnetic wave is used in mobile phones?

• Radio waves

• Ultraviolet rays

• X-rays

• Gamma rays

Which electromagnetic waves can be seen by the human eye?

• X-rays

• Visible light

• Infrared rays

• Ultraviolet rays

What is the main use of gamma rays in medicine?

• Measuring blood pressure

• Targeting tumor cells

• Treating bacterial infections

• Detecting broken bones

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Which electromagnetic wave has the highest frequency?

• Radio waves

• Microwaves

• Gamma rays

• Infrared rays

What is the function of sunscreen?

• To enhance the absorption of infrared rays

• To protect the skin from UV rays

• To absorb gamma rays

• To reflect visible light

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All waves carry (a)  

• energy.
• light.
• matter.
• particles.

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