The invisible image present on a dental x-ray film that does not become visible until after processing is called what?
What will be an ideal response?
The latent image. The silver halide crystals in film emulsion are sensitive to radiation. When the film is exposed, some of these crystals become ionized into silver and bromide ions that store the energy as a latent image. Processing changes the ions into black metallic silver, which can be seen.
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You are treating victims of a motor vehicle collision that occurred when their vehicle struck a bridge abutment head on at a high rate of speed. Due to Newton's first law, you know that:
A) it would be difficult to predict any injury due to the speed. B) the vehicle itself would absorb all of the kinetic energy. C) the kinetic energy of the moving vehicle would be transferred to the vehicle and victims. D) survival would be predicted on safety features of the vehicle.
Fire kills ____.
A. primarily when it is a result of terrorist attacks B. someone in the United States on average every 10 hours C. fewer Americans than hurricanes do D. more Americans than all natural disasters combined
Which of the following statements about radiation is MOST accurate?
A) All bodies emit radiation at a constant rate. B) When two bodies have different temperatures, there will be a transfer of energy from the body of higher temperature to the body of lower temperature. C) Vertical communication of fire is due mainly to radiation. D) The Stefan-Boltzmann law states that the intensity of thermal radiation is a function of the square of the absolute temperature of the thermal radiation source.
Which of the following tasks should a receptionist be able to perform?
A. Understand the needs of others. B. Handle telephone emergencies. C. Protect confidentiality. D. All of these