Electromagnetic Waves Quiz

How do microwaves transfer energy to food?

• By cooling the air around the food

• By exciting water molecules in the food

• By freezing the food

• By removing water from the food

What type of electromagnetic wave is used in a dentist's X-ray machine?

• Radio waves

• Microwaves

• Infrared waves

• X-rays

What is the primary use of electromagnetic radiation in medicine?

• To enhance vision

• To treat cancer

• To improve hearing

• To increase energy levels

How do gamma rays help in treating brain cancer?

• By cooling the tumor

• By striking the tumor from different directions

• By heating the tumor

• By shrinking the tumor with sound waves

What is the role of ultraviolet waves in medicine?

• To enhance bone strength

• To break apart molecules in cells

• To improve blood circulation

• To increase muscle mass

What type of waves do radio telescopes detect?

• Gamma rays

• X-rays

• Radio waves

• Infrared waves

What do thermal imaging cameras detect?

• Visible light

• Infrared radiation

• Gamma rays

• Radio waves

Why are radio telescopes useful both day and night?

• They detect visible light

• They detect radio waves

• They detect X-rays

• They detect gamma rays

Which type of waves do satellites use to send and receive information?

• Sound waves

• Radio waves

• Light waves

• Water waves

Why is wireless technology often preferred over fiber-optic cables?

• Fiber-optic cables are more colorful

• Wireless technology is less expensive

• Fiber-optic cables are easily damaged

• Wireless technology is slower