Physics 6.2.8 Flashcards
The Frequency of Electromagnetic Waves & the Energy of Electromagnetic Waves are ___ Proportional.
Directly.
What happens to the Energy of EM Waves that are beyond the Visible part of the EM Spectrum?
The Energy becomes Large enough to Ionise Atoms.
The Danger associated with EM Waves Increases along with the…
Frequency.
The ___ the Wavelength, the more Ionising the Radiation.
Shorter.
Wavelength and Frequency are ___ Proportional.
Inversely.
Which EM Waves can have Dangerous Effects on Human Body Tissue due to Ionisation? (3). What is a Dangerous Effect that they can have on Body Cells?
Ultraviolet Waves, X-Rays, Gamma Rays.
They can Damage Cells & Cause Mutations, making them Cancerous.
What is ‘Radiation Dose’?
A Measure of the Risk of Harm Resulting from an Exposure of the Body to Ionising Radiation.
What is Radiation Dose Measured in?
Sieverts (Sv).
What is the main Possible Danger associated with ‘Radio Waves’?
No Known Danger.
What is the main Possible Danger associated with ‘Microwaves’?
Possible Heat Damage to Internal Organs.
What is the main Possible Danger associated with ‘Infrared Waves’?
Skin Burns.
What is the main Possible Danger associated with ‘Visible Light’?
Bright Light can Cause Eye Damage.
What is the main Possible Danger associated with ‘Ultraviolet Light’? (3)
-Eye Damage.
-Sunburn.
-Skin Cancer.
What is the main Possible Danger associated with ‘X-Rays’? (3)
-Kills Cells.
-Mutations.
-Cancer.
What is the main Possible Danger associated with ‘Gamma Rays’? (3)
-Kills Cells.
-Mutations.
-Cancer.
