What is background radiation?

Radioactive Decay and Safety Measures

Interactive Video
•
Physics, Science, Chemistry
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Radiation that is emitted by electronic devices.
Radiation that is only present in laboratories.
Radiation that is always present in the environment.
Radiation from a specific radioactive source.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the half-life of a radioactive isotope?
By observing the time it takes for the count rate to double.
By measuring the initial and final mass of the isotope.
By determining the time it takes for the count rate to reduce to half its original value.
By calculating the time it takes for the isotope to completely decay.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to only list the required number of precautions when handling radioactive isotopes?
To avoid confusion and ensure clarity in the response.
To demonstrate a wide range of knowledge.
To impress the examiner with extra information.
To ensure all possible precautions are covered.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of a lead shield when handling radioactive materials?
To increase the count rate of the sample.
To enhance the radiation emitted.
To protect the sample from external radiation.
To act as a barrier and reduce exposure to radiation.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a graph showing radioactive decay typically illustrate?
The increase in radiation over time.
The constant level of radiation.
The fluctuation of radiation without any pattern.
The decrease in radiation as the sample decays.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you determine the half-life of a sample using a decay graph?
By measuring the total time the graph covers.
By finding the point where the graph starts.
By identifying the time interval where the count rate halves.
By calculating the average count rate over time.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be considered when determining the background reading from a graph?
The highest point on the graph.
The average of all points on the graph.
The point where the graph starts.
The range where the graph flattens off.
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