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Half-Life Questions

Authored by Miss Newell

Physics

10th - 11th Grade

Used 17+ times

Half-Life Questions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There is 10g of a radioactive isotope.

How much will be left after 1 half-life?

3.3g

5g

2.5g

15g

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There is 10g of a radioactive isotope.

How much will be left after 2 half-lives?

12g

5g

2.5g

7.5g

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 12kg of radioactive nuclei.

How much will be left after 3 half-lives?

1.5kg

3kg

4kg

6kg

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 4kg of a radioactive isotope.

The half-life is 20s.

How much will be left after 20s?

8kg

2kg

1kg

0.2kg

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 4kg of a radioactive isotope.

The half-life is 20s.

How much will be left after 40s?

0.5kg

1kg

2kg

8kg

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 4kg of a radioactive isotope.

The half-life is 20s.

How much will be left after 60s?

2kg

0.5kg

1kg

8kg

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 4kg of a radioactive isotope.

After 6 seconds, there are 2kg left.

What is the half-life of the isotope?

12s

6s

2s

4s

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