Radioactive Decay Math Quiz
Authored by Jennifer Wade
Mathematics
11th Grade
CCSS covered
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A soil sample near Chernobyl was found to contain 100 kBq/m of iodine-137. If the half-life of iodine-137 is approximately 25 years, how much cesium-137 will remain in the sample after 75 years?
12.5 kBq/m
25 kBq/m
50 kBq/m
100 kBq/m
Tags
CCSS.HSF.LE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sample of radioactive waste has a half-life of 5 years and an activity level of 4 curies. After how many years will the activity level of this sample be 1 curie?
5 years
10 years
15 years
20 years
Tags
CCSS.HSF.LE.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The half-life of radon gas is approximately 7 days. Two weeks after the introduction of radon into a sealed room, the fraction of the original amount remaining is closest to:
1/4
1/2
1/8
1/16
Tags
CCSS.HSF.LE.A.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the estimated energy cost per year for a 9W LED bulb providing 800 lumens?
$1.26
$6.02
$3.50
$2.00
Tags
CCSS.8.EE.C.7B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the estimated energy cost per year for a 43W halogen bulb providing 800 lumens?
$6.02
$1.26
$4.50
$3.00
Tags
CCSS.8.EE.C.7B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many watts does a comparably bright LED bulb use compared to a 40 watt incandescent bulb?
12 watts
40 watts
20 watts
25 watts
Tags
CCSS.6.RP.A.3B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the brightness in lumens for both the 9W LED and 43W halogen bulbs?
800 lumens
600 lumens
1000 lumens
500 lumens
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