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rad106 e2
| Question | Answer |
|---|---|
| The energy of a photon is ________________ proportional to its frequency. | directly |
| __ is one half the range from crest to valley over which the sine wave varies. | Amplitude |
| ____ is the distance from one crest to another, from one valley to another, or from any point on the sine wave to the next corresponding point. | Wavelength |
| An x-ray photon is a quantum of __________ energy. | electromagnetic |
| ___ is the number of wavelengths that pass a point of observation per second. | Frequency |
| Structures that absorb x-rays are ______________ and structures that transmit x-rays are __________. | radiopaque; radiolucent |
| The inverse square law states that the intensity of electromagnetic radiation is ________ related to the ______ of the distance from the source. | inversely; square |
| Visible light is identified by __________ and x-rays are identified by ___________. | wavelength; enegry |
| A conductor is any substance through which electrons _____ flow while an insulator is any material that _____ allow electron flow. | easily; does not |
| Electrodynamics is the study of __________ electric charges. | mobile |
| The autotransformer has one winding and is used to vary ________ and __________. | voltage;current |
| According to Faraday’s law, the magnitude of the induced electric current depends on which factor? | The variation of magnetic field intensity |
| Electrostatics is the study of __________ electric charges. | stationary |
| Like magnetic poles ________ and unlike magnetic poles ________. | repel; attract |
| What type of material can be made magnetic when placed in an external magnetic field? | Ferromagnetic |
| Water is a ___________ material. | diamagnetic |
| A 15% increase in kVp is equivalent to ___________________. | doubling the mAs |
| Approximately _____ of the kinetic energy of electrons from the cathode is converted to heat. | 99% |
| The amplitude of the emission spectrum with a _________ generator is __________ it is with a three-phase generator. | single-phase; lower than |
| Changes in _______ result in directly proportional changes in the amplitude of the emission spectrum. | mAs |
| Most of the heat generated at the target is due to ___________. | outer-shell excitation |
| Approximately _____ of the kinetic energy of the projectile electrons is converted to x-rays at the target. | 1% |
| Electron interactions at the inner shell of the target atoms produce _____ radiation. | characteristic |
Created by:
McKenna0410