Radio waves - Study guides, Class notes & Summaries

When were X-rays discovered? A. 1795 B. 1890 C. 1895 D. 1901 - correct answer C. 1895 What form of Energy are X-rays? A. Thermal B. Electromagnetic C. Magnetic Resonance D. Alpha particles - correct answer B. Electromagnetic Does Diagnostic Medical Sonography involve Ionizing Radiation? A. Possible B. Yes C. Some D. No - correct answer D. No What does Magnetic Resonance Imaging use to scan patients? A. Magnetic fields and beta particles B. Ionizing Radiation and...

When were X-rays discovered? A. 1795 B. 1890 C. 1895 D. 1901 - Answer-C. 1895 What form of Energy are X-rays? A. Thermal B. Electromagnetic C. Magnetic Resonance D. Alpha particles - Answer-B. Electromagnetic Does Diagnostic Medical Sonography involve Ionizing Radiation? A. Possible B. Yes C. Some D. No - Answer-D. No What does Magnetic Resonance Imaging use to scan patients? A. Magnetic fields and beta particles B. Ionizing Radiation and Light C. Ultrasonic waves and fluoresce...

Bushong: Radiologic Science for Technologists, 12th Edition Chapter 01: Essential Concepts of Radiologic Science Test Bank MULTIPLE CHOICE 1. Matter is measured in . a. kilograms b. joules c. electron volts d. rems ANS: A Matter is measured in kilograms DIF: Easy REF: page 3 OBJ: Recognize the unit of measurement for matter. 2. Energy is measured in . a. kilograms b. joules c. electron volts d. B or C ANS: D Energy is measured in joules or electron volts DIF: Moderate REF: p...

Fiber Optics (Light Brigade) Questions and Answers Rated A+ When was the first North American commercial fiber optic system installed? 1977 What is a mode in an optical fiber? Path What are the "three Cs" of an optical fiber? Core, Cladding, Coating What are the three critical factors to be considered when working with a fiber optic network? Attenuation, Dispersion, Reflection What does the acronym ITU represent? International Telecommunication Union what are the two most...

Introduction to Radiologic and Imaging Sciences and Patient Care 7th Edition Adler Test Bank Chapter 01: Introduction to Imaging and Radiologic Sciences Adler: Introduction to Radiologic and Imaging Sciences and Patient Care, 7th Edition MULTIPLE CHOICE 1. The use of X-rays to create a medical image on patients is referred to as a. electrocardiography. b. radiography. c. sonography. d. magnetic resonance imaging. ANS: B Radiography is the making of records, known as radiograph...

Astronomy Midterm 3 Exam - Questions and Answers (Complete Solutions) If you have a 100-watt light bulb, how much energy does it use each minute? A) 6,000 joules B) 6,000 watts C) 600 joules D) 600 watts E) 100 joules If a material is highly opaque, then it A) reflects most light. B) absorbs most light. C) transmits most light. D) scatters most light. E) emits most light. When light reflects off an object, what is the relation between the angle of incidence and the angle of reflection? A) angl...

What are photons? correct answers particles of light Light always behaves like a stream of particles. (T/F) correct answers True The energy of a photon is directly proportional to its wavelength correct answers False How fast does electromagnetic radiation travel? correct answers speed of light Photons with high energy will have (blank) frequency and (blank) wavelength correct answers High, short X-Rays have (blank) energy, (blank) wavelength, and (blank) frequency than radio wav...

waves: they are produced as a result of vibrations and do not transfer energy longitudinal waves: the particles vibrate parallel to the direction the wave is travelling e.g sound Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:04 / 0:15 Full screen Brainpower Read More transverse waves: particles vibrate 90 degrees to the direction of wave travel e.g water and electromagnetic longitudinal frequency: the number of vibrations made by a p...

Radio correct answers First time a message could send itself and required no one to deliver it how did radio begin correct answers The telegraph Radio was built from the idea of a telegraph Designed to be like telegraph without wire Who invented the radio? correct answers Marconi (1900s) When and how did the public become aware of radio? correct answers in 1912 due to Titanic David Sarnoff had a radio set and heard chatter of Titanic sinking When was mass media born? correct...

How many hours are required by the state for radar training's Operator Course - Answer- 30 Hours over 4 Weeks What is the basic goal of all police work? - Answer- To protect the lives and property of the public. 65% of all fatal crashes occur in a speed zone of? - Answer- 55 MPH or more NHTSA - Answer- National Highway Traffic Safety Administration, the federal agency dedicated to achieving the highest standards of excellence in motor vehicle and highway safety Radar is only a ___. ...