Q2 Science 10: Electromagnetic Spectrum and Radiologic Technology
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Questions and Answers

What type of reflection occurs when light is reflected from a smooth surface at a definite angle?

  • Inverted Reflection
  • Irregular / Diffuse
  • Virtual Reflection
  • Regular / Specular (correct)

    • Where are the images produced by plane mirrors located?

  • Behind the mirror (correct)
  • On the surface of the mirror
  • In front of the mirror
  • At the center of the mirror

    • Which type of radiation has the lowest frequency and energy in the visible light spectrum?

  • Gamma Ray
  • Radio Wave
  • Violet
  • Red (correct)

    • Who discovered the Microwave in 1864?

    <p>James Clerk Maxwell</p> Signup and view all the answers

    Which type of radiation can penetrate the skin a few centimeters and cause damage inside the body?

    <p>Beta Radiation</p> Signup and view all the answers

    Which type of wave can travel in vacuum without requiring a medium to travel?

    <p>Electromagnetic wave</p> Signup and view all the answers

    What is the equation to find the frequency of an electromagnetic wave?

    <p>$f = \frac{c}{\lambda}$</p> Signup and view all the answers

    Which type of radiation is responsible for Vitamin D production through sun exposure?

    <p>Ultraviolet ray</p> Signup and view all the answers

    What type of electromagnetic wave is used in night-vision goggles and thermal scanners?

    <p>Infrared wave</p> Signup and view all the answers

    What is the speed at which electromagnetic waves travel in free space?

    <p>$3 \times 10^8$ m/s</p> Signup and view all the answers

    What is the recommended power range for a soldering iron used in electronics works?

    <p>20 to 40 watts</p> Signup and view all the answers

    Which tool is used to remove unwanted solder without destroying the electronic component or work piece?

    <p>Desoldering Tool</p> Signup and view all the answers

    What type of screw head is characterized by a 6-point star-shaped pattern?

    <p>Torx</p> Signup and view all the answers

    What classification of handtools includes tools used to drive bolts and screws with hexagonal sockets in their heads?

    <p>Driving Tools</p> Signup and view all the answers

    What is the purpose of a soldering iron stand?

    <p>To hold the soldering iron while not in use and prevent accidental burns</p> Signup and view all the answers

    What is the purpose of a hot-air soldering station?

    <p>To melt solder using hot air, commonly used in cellular phones</p> Signup and view all the answers

    Which tool is used to remove the insulation of wires?

    <p>Wire Stripper</p> Signup and view all the answers

    What is the purpose of a magnifying glass in the context of electronics?

    <p>To enlarge the image of electronic components</p> Signup and view all the answers

    What is the main function of a portable electric drill in the context of electronics?

    <p>To make holes on printed circuit boards (PCBs)</p> Signup and view all the answers

    What does a multitester (multimeter) measure in the context of electronics?

    <p>Current, resistance, and voltage</p> Signup and view all the answers

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