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Half life Lesson 1

Authored by Jack Harding

Physics

9th - 11th Grade

NGSS covered

Used 12+ times

Half life Lesson 1
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows 32 atoms.

16 of the Red are parent isotopes

16 of the Green are daughter isotopes

How many half-lives have occurred?

0

1

2

3

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What type of decay is being illustrated in following picture? 

beta decay
alpha decay 

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

You have 100 grams of radioactive C-14. The half life of C-14 is 5730 years. 
How many grams are left after 1 half life? 

100 grams
25 grams
2 grams
50 grams

Tags

CCSS.HSF.LE.A.4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is Half-life?

The amount of time it takes for some of the nuclei in a sample of the isotope to decay
The amount of time it takes for half the electrons in a sample of the isotope to decay
The amount of time it takes for half the nuclei in a sample of the isotope to decay
the amount of time it takes to double the nuclei in a sample of the isotope to decay

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows 32 atoms

32 of the Red are the parent isotope

0 of the atoms are daughter isotopes

How many half-lives have occurred?

0

1

2

3

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do some elements have half-lives?

they radioactively decay

half of their atom gets stolen

They are Twizzlers that break in half

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The % of the parent isotope remaining after 2 Half Lives.

50%

25%

12.5%

6.25%

Tags

NGSS.HS-PS1-8

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