Mastering Half-Life Calculations and Graphing Decay
Authored by Anthony Clark
English, Mathematics
11th Grade
CCSS covered
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A radioactive substance has a half-life of 5 years. If you start with 80 grams, how much will remain after 15 years?
40 grams
10 grams
5 grams
20 grams
Tags
CCSS.HSF.LE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The half-life of a certain medication in the body is 3 hours. If a patient takes a 200 mg dose, how much of the medication will be left in the body after 9 hours?
25 mg
100 mg
50 mg
75 mg
Tags
CCSS.HSF.LE.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain isotope has a half-life of 10 days. If you have 50 mg of the isotope, how much will be left after 30 days?
3.125 mg
12.5 mg
6.25 mg
25 mg
Tags
CCSS.HSF.LE.A.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Graph the exponential decay of a substance with a half-life of 4 days, starting with 100 grams. What will the graph look like after 12 days?
25 grams
12.5 grams
50 grams
75 grams
Tags
CCSS.HSF.LE.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A culture of bacteria decreases by half every 2 hours. If you start with 1,000 bacteria, how many will be present after 8 hours?
250
62
125
500
Tags
CCSS.HSF.LE.A.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The half-life of a certain chemical is 6 months. If you have 120 mg of the chemical, how much will remain after 1.5 years?
30 mg
5 mg
60 mg
15 mg
Tags
CCSS.HSF.LE.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Create a graph showing the decay of a substance with a half-life of 8 hours, starting with 200 grams. How much will remain after 24 hours?
100 grams
50 grams
10 grams
25 grams
Tags
CCSS.HSF.LE.A.4
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