Which form of electromagnetic radiation is incapable of damaging living cells?(1 point)
Responses
ultraviolet
ultraviolet
X-rays
X-rays
infrared
infrared
gamma
infrared
A bottle of sunscreen claims to "Protect you from the bright light of the sun." Which statement below provides a good rebuttal to this claim?(1 point)
Responses
The light from the sun can get through anything.
The light from the sun can get through anything.
It is not visible light that damages skin.
It is not visible light that damages skin.
Bright is a relative term.
Bright is a relative term.
The sun gives off EMR, not light.
It is not visible light that damages skin.
Analyze the differences in characteristics across the electromagnetic spectrum. Which kind of electromagnetic radiation is least likely to damage your tissues?
An illustration shows the electromagnetic spectrum with radiations from left to right as radio waves, infrared, visible spectrum, ultraviolet, X-rays, and gamma rays.
(1 point)
Responses
radiation with very high frequency
radiation with very high frequency
radiation traveling at a fairly low speed
radiation with long wavelengths
radiation with long wavelengths
radiation at frequencies of visible light
radiation with long wavelengths
Why are X-rays rather than gamma rays used for diagnosing broken bones?(1 point)
Responses
X-rays have a much higher frequency.
X-rays have a much higher frequency.
X-rays do not harm cells.
X-rays do not harm cells.
Gamma rays are more damaging to cells.
Gamma rays are more damaging to cells.
Gamma rays are not able to penetrate through skin.
Gamma rays are more damaging to cells.
If someone was considering gamma rays as a treatment for cancer, what important information would they need to know?(1 point)
Responses
Gamma rays will kill neither cancerous nor healthy cells.
Gamma rays will kill neither cancerous nor healthy cells.
Gamma rays can kill both cancerous cells and healthy cells.
Gamma rays can kill both cancerous cells and healthy cells.
Gamma rays can kill cancerous cells, but not healthy cells.
Gamma rays can kill cancerous cells, but not healthy cells.
Gamma rays can kill healthy cells, but not cancerous cells.