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rad 106
Week 12 Assignment: Study Stack Exam Review
| Question | Answer |
|---|---|
| 1.Visible light is identified by __________ and x-rays are identified by ___________. | wavelength; energy |
| 2.The energy of a photon is ________________ proportional to its frequency. | directly |
| 3.Structures that absorb x-rays are ______________ and structures that transmit x-rays are __________. | radiopaque; radiolucent |
| 4.__________ 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 |
| 5.________ is the number of wavelengths that pass a point of observation per second. | Frequency |
| 6.The inverse square law states that the intensity of electromagnetic radiation is ________ related to the ______ of the distance from the source. | inversely; square |
| 7.__________ is one half the range from crest to valley over which the sine wave varies. | Amplitude |
| 8.An x-ray photon is a quantum of __________ energy. | electromagnetic |
| 9.Planck’s constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the ______________ of that radiation. | frequency |
| 10. At a given velocity, wavelength and frequency are _____________ proportional. | inversely |
| 11.Electrostatics is the study of __________ electric charges. | stationary |
| 12. The autotransformer has one winding and is used to vary ________ and __________. | voltage; current |
| 13.What type of material can be made magnetic when placed in an external magnetic field? | Ferromagnetic |
| 14.Electrodynamics is the study of __________ electric charges. | mobile |
| 15.Like magnetic poles ________ and unlike magnetic poles ________. | repel; attract |