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Anjali Samaroo
Physics Study FC
| Question | Answer |
|---|---|
| Ferromagnetic objects can be made into magnets by ____? | Induction (Bushong p. 86) |
| ____ voltage ripple results in greater radiation quality and quantity. | Less (Bushong p. 115) |
| There are two types of anodes: ____ and ____. | Stationary, Rotating (Bushong p. 125) |
| What do the letters in "ALARA" stand for? | As Low As Reasonably Achievable (Bushong p. 12) |
| Atoms that have the same atomic number but different atomic mass numbers are ____? | Isotopes (Bushong p. 46) |
| Atomic Nuclei that have the same atomic mass number but different atomic numbers are ____? | Isobars (Bushong p. 47) |
| Atoms that have the same number of neutrons but different numbers of protons are ____? | Isotones (Bushong p. 47) |
| ____ charges attract; ____ charges repel. | Unlike; Like (Bushong p. 75) |
| What type of transformer consists of a square core made of ferromagnetic material? | Closed-Core Transformer (Bushong p. 95) |
| What formula is necessary for calculating three-phase or high-frequency heat units? | HU= 1.4 x kVp x mA x s (Bushong p. 135) |
| ____ scattering reduces image contrast. | Compton (Bushong p. 165) |
| ____ is anything that occupies space. | Matter (Bushong p. 3) |
| The force (F) that acts on an object is equal to the mass (m) of the object multiplied by the acceleration (a) produced. (F=ma) | Newton's Second Law (Bushong p. 21) |
| ____ is the SI unit of force? | Newton (N) (Bushong p. 21) |
| ____ is the removal of an orbital electron from an atom. | Ionization (Bushong p. 43) |
| The velocity of all electromagnetic radiation is ____? | 3 x 10^8 m/s (Bushong p. 57) |
| What is the only difference between x-rays and gamma rays? | Their Origin (Bushong p. 63) |
| An example of a diamagnetic material is iron. | False. (Plastic or Water.... Iron is a Ferromagnetic Material) (Bushong p. 85) |
| ____ ____ is the release of electrons from a heated filament. | Thermionic Emission (Bushong p. 106) |
| Approximately ____ of the kinetic energy of projectile electrons is converted to heat. | 99% (Bushong p. 140) |
| ____ x-rays are produced when a projectile electron is slowed by the electric field of a target atom nucleus. | Bremsstrahlung (Bushong p. 142) |
| In the diagnostic range, most x-rays are (Bremsstrahlung/Characteristic) x-rays. | Bremsstrahlung (Bushong p. 143) |
| In the diagnostic range, a 15% increase in kVp is equivalent to ____ the mAs. | Doubling (Bushong p. 147) |
| Attenuation is the reduction in x-ray intensity that results from absorption and penetration. | False. (Attenuation is the reduction in x-ray intensity that results from absorption and scattering) (Bushong p. 135) |
| The HVL of an x-ray beam is the thickness of absorbing material necessary to reduce the x-ray intensity to half of its original value. | True (Bushong p. 135) |
| Pair Production occurs during x-ray imaging. | False. (Does Not Occur) (Bushong p. 169) |
| What are the fundamental particles of an atom? | Electrons, Protons, Neutrons (Bushong p. 40) |
| No outer shell can contain more than eight electrons. | True (Bushong p. 43) |
| ____ is the number of wavelengths that pass a point of observation per second. | Frequency (Bushong p. 58) |
| The x-ray tube current is adjusted by controlling the ____ current. | Filament (Bushong p. 123) |
| The filament is made up of what type of material? | Tungsten (Bushong p. 122) |
| The cathode is the positive side of the x-ray tube. | False. (The cathode is the negative side of the x-ray tube. The Anode is the positive side) (Bushong p. 125) |
| X-ray quantity is inversely proportional to the square of the distance from the source. | Inverse Square Law (Bushong p. 154) |
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