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Lesson Worksheet: Radioactive Contamination Science

In this worksheet, we will practice describing the ways that radioactive material can contaminate the environment.

Q1:

Which of the following correctly describes a property of radioactive objects?

  • AThey must be too small to be seen by the human eye.
  • BThey can be too small to be seen by the human eye.
  • CThey must be large enough to be seen by the human eye.

Q2:

Which of the following correctly describes whether or not an object is radioactively contaminated?

  • AAn object is radioactively contaminated if it has absorbed nuclear radiation.
  • BAn object is radioactively contaminated if radioactive material has become joined to it.

Q3:

Which of the following statements correctly states the ability of protective clothing to reduce dangers from exposure to nuclear waste?

  • AProtective clothing can absorb all of the nuclear radiation emitted by the waste.
  • BProtective clothing can absorb some of the nuclear radiation emitted by the waste.
  • CProtective clothing cannot absorb any of the nuclear radiation emitted by the waste.

Q4:

Which is the greater hazard to most people in the world from a large block of nuclear waste, the nuclear radiation emitted by the block or the radioactive contamination of the block’s surroundings?

  • ARadioactive contamination of the block’s surroundings
  • BThe nuclear radiation emitted by the block

Q5:

Which of the following statements correctly explains why very small radioactive objects are more dangerous than larger radioactive objects?

  • AVery small objects emit more dangerous types of nuclear radiation than larger ones.
  • BVery small objects are more likely to be carried by air or water currents than larger ones.

Q6:

Which of the following most correctly describes why protective masks used by workers who handle nuclear waste have filters in them?

  • AThe filters can block some types of radioactive gases.
  • BThe filters can block some types of nuclear radiation.
  • CThe filters block some very small radioactive objects that might otherwise be inhaled.

Q7:

Three objects are shown. The objects are identical, except that object A is radioactive. The distance between object A and object B is the same as the distance between object B and object C. Radioactive contamination cannot occur over distances greater than the distance between objects that are next to each other. Would object C eventually become radioactively contaminated?

  • AYes
  • BNo

Q8:

Which of the following more correctly explains why nuclear waste is stored very far from where many people live?

  • ABecause nuclear power stations are built very far from where many people live
  • BTo avoid exposing many people to radioactive contamination

Q9:

Which of the following equally radioactive objects would produce the greatest contamination risk?

  • AA radioactive cloud of gas
  • BA radioactive solid block
  • CA radioactive pool of liquid

Q10:

Which of the following most correctly explains why nuclear waste from nuclear power stations is not pumped from the stations through pipes?

  • AOnly fluids can be pumped, and any leaks in the pipes would mean a large contamination risk from radioactive fluids.
  • BRadioactive waste cannot be melted or boiled.
  • CNuclear radiation from radioactive waste would quickly damage the pipes radioactive waste flowed through.

This lesson includes 15 additional questions for subscribers.

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