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VET 246 Week 1
Basics of Atoms and Electricity
| Question | Answer |
|---|---|
| X-rays | Named because of their unknown nature Discovered by German scientist Wilhelm Roentgen in 1895 |
| ___ matter is made up of atoms. | All |
| ____ orbit the nucleus of an atom | Electrons |
| Because of the distance, electrons are capable of getting enough energy to ____ their orbit | leave |
| ____ is matter and _____ has energy | Everything |
| Matter can become ____ and energy can become ____ | energy; matter |
| Both energy and matter cannot be _____ or _____ | Created; destroyed |
| Energy and matter can only be changed in ___ | form |
| X-rays can be ____ or _____ by tissues in the body, this can produce _______ radiation | absorbed, scattered, scattered and secondary radiation |
| Electromagnetic energy includes ____ and ___ | x-rays, light |
| Form of electromagnetic energy similar to visible light but of a shorter wave-length | x-rays |
| Electromagnetic radiation | consists of particles & waves |
| Radiant energy | AKA light |
| Small animal stationary radiography unit uses a maximum of _____ volts and __ to __ milliamperes | 125,000; 300 to 400 |
| Waves have ____ and _____ | Length; height |
| Short wavelength has ____ frequency and long wavelength has ___ frequency | high; low |
| Frequency | Cycles of wave per second |
| Higher the frequency more _____ power | penetrating |
| ____ is tightly bound to the nucleus | Proton |
| ____ is bound but loosely | Electron |
| Negatively charged free electron wants to find _____ and moves along solid conductors | homeostasis |
| When electrons travel, it creates ____ | electricity |
| Induction | Occurs when two electrical fields act upon each other without actually touching each other Ex: Lightning |
| Amp | The standard measurement of quantity of electrons flowing past at a certain point in time |
| Radiology works with | milliamperes (mA) |
| Increasing the mA will ___ the image or _____ the density | darken; increase |
| Decreasing the mA will ___ the image or ___ the density | lighten; decrease |
| Volt | Measure of potential difference (causes electrons to travel from one point to another) |
| Radiology uses ____ | kiloVolts (kV or KVP) |
| Increasing kV too much will ___ the film and eliminate contrast | darken |
| Decreasing kV too much will ___ the film and eliminate contrast | lighten |
Created by:
Acraft02
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