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Worksheet: Detecting and Blocking Different Types of Radiation

Q1:

What is the name of the instrument that can be used to measure the level of radiation in an area?

  • AA Becquerel counter
  • BA Sievert counter
  • CA Thomson counter
  • DA Geiger counter
  • EA Rutherford counter

Q2:

Which of the following types of radiation is negatively charged?

  • AFree neutrons
  • BAlpha radiation
  • CGamma radiation
  • DBeta radiation

Q3:

Which material is suitable for lining a box that is used to store a radioactive source?

  • APolystyrene
  • BIron
  • CGold
  • DLead
  • ECardboard

Q4:

Which of the following types of radiation have no electric charge?

  1. Gamma radiation
  2. Alpha radiation
  3. Beta radiation
  4. Free neutrons
  • Aa and c
  • Ba and b
  • Cc and d
  • Da and d
  • Eb and c

Q5:

Which of the following is the approximate range of gamma radiation in air?

  • A 1 m
  • B 1 cm
  • C 1 km
  • DThe range is too long to be measured.
  • E 10 m

Q6:

Which type of radiation has the shortest range in air?

  • AGamma radiation
  • BBeta radiation
  • CAlpha radiation

Q7:

Which of the following is the correct definition of ionization?

  • AIonization is the process of charged atoms or molecules becoming electrically neutral.
  • BIonization is the process of multiple charged atoms or molecules grouping together.
  • CIonization is the process of an unstable nucleus decaying and emitting a charged particle.
  • DIonization is the process by which an atom or a molecule becomes electrically charged by losing or gaining electrons.
  • EIonization is the process of an unstable nucleus emitting a gamma ray.

Q8:

Which type of radiation has the greatest range in air?

  • ABeta radiation
  • BAlpha radiation
  • CGamma radiation

Q9:

Beta radiation can be used to measure the thickness of aluminum foil during production and to automatically control the speed and pressure of the rollers that press the metal into foil. This is shown in the diagram. The Geiger counter measures the amount of radiation that comes through the foil from the beta source on the other side. The Geiger counter is connected to a system that controls the rollers.