electromagnet reading article

What is the electromagnetic spectrum?

• A range of waves that includes radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays, and gamma rays.

• A type of wave that transfers energy.

• A repeating pattern that can transfer energy from place to place.

• The ability to cause changes in matter.

Which type of electromagnetic wave has the shortest wavelength?

• Gamma rays

• Radio waves

• Microwaves

• Infrared waves

What is the relationship between wavelength and frequency in electromagnetic waves?

• Shorter wavelength means higher frequency.

• Shorter wavelength means lower frequency.

• Wavelength and frequency are not related.

• Longer wavelength means higher frequency.

Which electromagnetic wave is used in microwave ovens to heat food?

• Microwaves

• Radio waves

• Infrared waves

• Ultraviolet waves

What is the main use of X-rays in the medical field?

• To create images of bones and other body structures.

• To detect gamma rays.

• To send signals that control your TV.

• To heat up food.

Which color of visible light has the highest energy?

• Violet

• Red

• Green

• Yellow

What is the function of a Geiger counter?

• To detect gamma rays.

• To measure the amplitude of sound waves.

• To separate white light into different colors.

• To block radio waves.