Contamination and Irradiation OALH

Do Now

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1.What is the half-life of a radioactive isotope?

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2. What happens to the half-life of a particular isotope as more and more nuclei decay?

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3. What are the units for activity? (1

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4. Name the equipment used to measure count rate.

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Write this number to 3 significant figures 5.66391

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Calculate the half-life using the graph

Pause Points

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What is contamination?

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What is irradiation?

Key Knowledge - LCWC

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What is radioactive contamination?

1

What affects the level of the hazard from contamination?

1

What is irradiation?

1

Does an irradiated object because radioactive?

1

What is radioactive contamination?

1

What affects the level of the hazard from contamination?

1

What is irradiation?

1

Does an irradiated object because radioactive?

Recall Quiz

1

1. What is radioactive contamination?

1

2. What affects the level of hazard from contamination?

1

3) What is irradiation?

1

4) When do seemingly non-radioactive materials emit radiation?

I Do

1

I do:
Explain why a contaminated object is more dangerous than an irradiated object

We Do

1

We do:
Explain why a contaminated object with a half-life of 4500 million years is more dangerous than an object with half-life 30 minutes. Write down the correct three words

You Do

1

You do:
Explain why a contaminated object emitting gamma radiation is more dangerous than once emitting alpha radiation.

1

You Do – How can you protect yourself from the dangers of radiation?

Plenary

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1. What is the words for unwanted presence of radioactive materials?

1

2. What is used to destroy bacteria in food?

1

3. What is deliberate or accidental exposure to nuclear radiation?

1

4. Which type does not cause an object to become radioactive?

1

Contamination and Irradiation OALH

1.What is the half-life of a radioactive isotope?

2. What happens to the half-life of a particular isotope as more and more nuclei decay?

3. What are the units for activity? (1

4. Name the equipment used to measure count rate.

Write this number to 3 significant figures 5.66391

Calculate the half-life using the graph

What is contamination?

What is irradiation?

What is radioactive contamination?

What affects the level of the hazard from contamination?

What is irradiation?

Does an irradiated object because radioactive?

What is radioactive contamination?

What affects the level of the hazard from contamination?

What is irradiation?

Does an irradiated object because radioactive?

1. What is radioactive contamination?

2. What affects the level of hazard from contamination?

3) What is irradiation?

4) When do seemingly non-radioactive materials emit radiation?

I do:Explain why a contaminated object is more dangerous than an irradiated object

We do:Explain why a contaminated object with a half-life of 4500 million years is more dangerous than an object with half-life 30 minutes. Write down the correct three words

You do:Explain why a contaminated object emitting gamma radiation is more dangerous than once emitting alpha radiation.

You Do – How can you protect yourself from the dangers of radiation?

1. What is the words for unwanted presence of radioactive materials?

2. What is used to destroy bacteria in food?

3. What is deliberate or accidental exposure to nuclear radiation?

4. Which type does not cause an object to become radioactive?

5. Which type would be caused when there is a disaster in a nuclear power plant?

1.What is the half-life of a radioactive isotope?

2. What happens to the half-life of a particular isotope as more and more nuclei decay?

3. What are the units for activity? (1

4. Name the equipment used to measure count rate.

Write this number to 3 significant figures 5.66391

Calculate the half-life using the graph

What is contamination?

What is irradiation?

What is radioactive contamination?

What affects the level of the hazard from contamination?

What is irradiation?

Does an irradiated object because radioactive?

What is radioactive contamination?

What affects the level of the hazard from contamination?

What is irradiation?

Does an irradiated object because radioactive?

1. What is radioactive contamination?

2. What affects the level of hazard from contamination?

3) What is irradiation?

4) When do seemingly non-radioactive materials emit radiation?

I do:Explain why a contaminated object is more dangerous than an irradiated object

We do:Explain why a contaminated object with a half-life of 4500 million years is more dangerous than an object with half-life 30 minutes. Write down the correct three words

You do:Explain why a contaminated object emitting gamma radiation is more dangerous than once emitting alpha radiation.

You Do – How can you protect yourself from the dangers of radiation?

1. What is the words for unwanted presence of radioactive materials?

2. What is used to destroy bacteria in food?

3. What is deliberate or accidental exposure to nuclear radiation?

4. Which type does not cause an object to become radioactive?

5. Which type would be caused when there is a disaster in a nuclear power plant?

I do:
Explain why a contaminated object is more dangerous than an irradiated object

We do:
Explain why a contaminated object with a half-life of 4500 million years is more dangerous than an object with half-life 30 minutes. Write down the correct three words

You do:
Explain why a contaminated object emitting gamma radiation is more dangerous than once emitting alpha radiation.

I do:
Explain why a contaminated object is more dangerous than an irradiated object

We do:
Explain why a contaminated object with a half-life of 4500 million years is more dangerous than an object with half-life 30 minutes. Write down the correct three words

You do:
Explain why a contaminated object emitting gamma radiation is more dangerous than once emitting alpha radiation.