Term
|
Definition
| ~The distance from one peak to the next. |
|
|
Term
|
Definition
| ~How many complete waves there are per second. Measured in hertz (Hz) (1Hz = 1 wave per second) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
~1m - 10(superscript)4 m
~km |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| A high frequency means a _________. |
|
Definition
|
|
Term
| Wave Speed = ______ * _____ |
|
Definition
|
|
Term
|
Definition
| ~Just passes through the substance |
|
|
Term
|
Definition
|
|
Term
|
Definition
| ~The wave's energy is transferred to the matter |
|
|
Term
| What happens (i.e absorption/reflection) depends on: [two things] |
|
Definition
~The surface of the substance
~The wavelength of the radiation |
|
|
Term
| If EM radication is absorbed it could either: [two things] |
|
Definition
~Make the substance hot
~Set up a tiny alternating current with the same frequency as the EM wave |
|
|
Term
| A wave that is mostly transmitted |
|
Definition
|
|
Term
| A wave that is absorbed and causes heating of the cells |
|
Definition
|
|
Term
| A wave that causes skin cancer |
|
Definition
|
|
Term
|
Definition
| ~When the radiation destroys the cells |
|
|
Term
What does the effect of the radiation depend upon? [two things] |
|
Definition
| ~Type of radiation ~Dose of radiation |
|
|
Term
| Gamma radiation uses and dangers |
|
Definition
~radio therapy, diagnastic work with gamma camera, pipe leakage
~Cancer and mutation deep in the body |
|
|
Term
|
Definition
~Medical scanning for broken bones and tumours in tissue
~Cancer and mutations deep in the body |
|
|
Term
| Ultra Violet uses and dangers |
|
Definition
~Security marking, insect capture
~Skin cancer and cateracts |
|
|
Term
| Visible Light uses and dangers |
|
Definition
~Communication, warnings of danger and location, writing, painting etc.
~Very birght light can damage the retina |
|
|
Term
| Micro waves uses and dangers |
|
Definition
~Satellite communication and cooking
~Heating effects within tissue, it is ionizing, scientists think it can cause tumour growth. |
|
|
Term
| Micro waves uses and dangers |
|
Definition
~Satellite communication and cooking
~Heating effects within tissue, it is ionizing, scientists think it can cause tumour growth. |
|
|
Term
| Radio and TV waves uses and dangers |
|
Definition
~Communication
~None known unless intensity is abnormally high |
|
|
Term
| All EM waves travel at _____ through a vacuum. |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
