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106 E2
| Question | Answer |
|---|---|
| At a given velocity, wavelength and frequency are _____________ proportional. | inversely |
| __________ 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 |
| 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 |
| Visible light is identified by __________ and x-rays are identified by ___________. | wavelength; energy |
| A conductor is any substance through which electrons _____ flow while an insulator is any material that _____ allow electron flow. | easily; does not |
| What type of material can be made magnetic when placed in an external magnetic field? | Ferromagnetic |
| Electrodynamics is the study of __________ electric charges. | mobile |
| Like magnetic poles ________ and unlike magnetic poles ________. | stationary |
| How does added filtration affect the emission spectrum? | Reduced amplitude and a shift to the right |
| A change in mA or mAs results in a proportional change in the ________ of the x-ray emission spectrum at all energies. | amplitude |
| A 15% increase in kVp is equivalent to ___________________. | doubling the mAs |
| Characteristic x-rays are emitted when an _________ electron fills an _________ void. | outer-shell; inner-shell |
| Approximately _____ of the kinetic energy of electrons from the cathode is converted to heat. | 99% |
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cathrvn
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