Uses and hazards of radiation (Combined science only)

This lesson contrasts contamination and irradiation and explores some of the uses and dangers of radioactive sources by considering the properties of the radiations they produce and how they can be used in various situations.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the best definition of 'activity'?

1/7

Q2.Which word can be used to describe the process of radioactive decay?

2/7

Q3.What is the best definition of 'half life'?

3/7

Q4.What is the best definition of 'count rate'?

4/7

Q5.What is activity measured in?

5/7

Q6.The activity of a sample is measured over 550 seconds and show on the graph. What is the half-life of the sample?

6/7

Q7.If a radioactive sample contained 1600 billion nuclei and its half life was 57 years, after how many years would there be 400 billion nuclei remaining?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the best definition of 'activity'?

1/7

Q2.Which word can be used to describe the process of radioactive decay?

2/7

Q3.What is the best definition of 'half life'?

3/7

Q4.What is the best definition of 'count rate'?

4/7

Q5.What is activity measured in?

5/7

Q6.The activity of a sample is measured over 550 seconds and show on the graph. What is the half-life of the sample?

6/7

Q7.If a radioactive sample contained 1600 billion nuclei and its half life was 57 years, after how many years would there be 400 billion nuclei remaining?

7/7

Video

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Uses and Hazards of Radiation (Combined Science only)

Use this quiz to see how well you have learnt about the Uses and Hazards of Radiation.

Q1.What does contamination mean?

1/13

Q2.What does irradiation mean?

2/13

Q3.In which of the following situations would contamination occur?

3/13

Q4.In which of the following situations would irradiation occur?

4/13

Q5.Which type of radiation is most suitable to use within a smoke detector?

5/13

Q6.Which of the following precautions would be effective at preventing contamination?

6/13

Q7.Which of the following precautions would be effective at preventing irradiation?

7/13

Q8.As a precaution, is lead shielding effective at preventing contamination, irradiation, both or neither?

8/13

Q9.As a precaution, is a radiation badge effective at preventing contamination, irradiation, both or neither?

9/13

Q10.As a precaution, is a breathing mask effective at preventing contamination, irradiation, both or neither?

10/13

Q11.As a precaution, is keeping you distance from radioactive substances effective at preventing contamination, irradiation, both or neither?

11/13

Q12.As a precaution, is limiting the time spent with radioactive substances effective at preventing contamination, irradiation, both or neither?

12/13

Q13.Which type of nuclear radiation poses the greatest hazard if it is produced by a radioactive isotope that a person has been contaminated by?

13/13

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Uses and Hazards of Radiation (Combined Science only)

Use this quiz to see how well you have learnt about the Uses and Hazards of Radiation.

Q1.What does contamination mean?

1/13

Q2.What does irradiation mean?

2/13

Q3.In which of the following situations would contamination occur?

3/13

Q4.In which of the following situations would irradiation occur?

4/13

Q5.Which type of radiation is most suitable to use within a smoke detector?

5/13

Q6.Which of the following precautions would be effective at preventing contamination?

6/13

Q7.Which of the following precautions would be effective at preventing irradiation?

7/13

Q8.As a precaution, is lead shielding effective at preventing contamination, irradiation, both or neither?

8/13

Q9.As a precaution, is a radiation badge effective at preventing contamination, irradiation, both or neither?

9/13

Q10.As a precaution, is a breathing mask effective at preventing contamination, irradiation, both or neither?

10/13

Q11.As a precaution, is keeping you distance from radioactive substances effective at preventing contamination, irradiation, both or neither?

11/13

Q12.As a precaution, is limiting the time spent with radioactive substances effective at preventing contamination, irradiation, both or neither?

12/13

Q13.Which type of nuclear radiation poses the greatest hazard if it is produced by a radioactive isotope that a person has been contaminated by?

13/13

Lesson summary: Uses and hazards of radiation (Combined science only)

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