Some frequencies of ultraviolet light have enough energy to kill bacteria, but do not have enough energy to go through or damage human tissue. Which one of the medical applications below would this type of electromagnetic radiation be most useful?(1 point) Responses to remedy errors in vision to remedy errors in vision to reconstruct a tooth to reconstruct a tooth to target and destroy cancer cells to target and destroy cancer cells to sanitize surgical rooms
The medical application where this type of ultraviolet light would be most useful is to sanitize surgical rooms.
A scientist is creating a device for humans to communicate through detectable light. Which waves should the scientist apply from the electromagnetic spectrum?(1 point) Responses radio waves radio waves infrared waves infrared waves X-ray waves X-ray waves visible waves
The scientist should apply visible waves from the electromagnetic spectrum to create a device for humans to communicate through detectable light.
A scientist is designing a device that will develop an image of a bone, but not the surrounding tissues. Which type of wave from the electromagnetic spectrum would best complete the scientist's design and why?(1 point) Responses Infrared waves would be the best choice because they have large amplitudes. Infrared waves would be the best choice because they have large amplitudes. X-ray waves would be the best choice because they have short wavelengths. X-ray waves would be the best choice because they have short wavelengths. X-ray waves would be the best choice because they have long wavelengths. X-ray waves would be the best choice because they have long wavelengths. Infrared waves would be the best choice because they have small amplitudes
X-ray waves would be the best choice because they have short wavelengths. X-rays have the ability to penetrate through soft tissues and allow only dense materials, such as bones, to absorb and create an image.
Jo’Siah wonders if he can block the radio waves emitted by the remote control used to operate his radio-controlled car. He covers the remote control in different materials and tries to use it to operate his car. His observations are recorded in the table below. Why does the remote control work with all the materials except when covered with aluminum foil? (1 point) Responses because the aluminum foil blocks the radio waves because the aluminum foil blocks the radio waves because the aluminum foil blocks the gamma rays because the aluminum foil blocks the gamma rays because the aluminum foil blocks the batteries because the aluminum foil blocks the batteries because the aluminum foil blocks the sound waves
The remote control does not work when covered with aluminum foil because the aluminum foil blocks the radio waves.
High-energy radiation from the Sun can cause damage to the cells of living things. Earth's atmosphere protects us from much of the Sun's harmful radiation. Which of the following is NOT a type of high-energy radiation that is reflected or absorbed by Earth's atmosphere?(1 point) Responses gamma radiation gamma radiation microwave radiation microwave radiation ultraviolet radiation ultraviolet radiation X-ray radiation X-ray radiation
Microwave radiation is not a type of high-energy radiation that is reflected or absorbed by Earth's atmosphere.
