Half Life Calculations Practice
Authored by Charles Martinez
Physics
8th Grade
NGSS covered
Used 27+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
After 4 half-lives,there is now a 1g sample of Krypton-85. What was the original mass of the sample?
16g
32g
0.0625g
4g
Tags
NGSS.HS-PS1-8
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The half-life of Zinc-71 is 2.4 minutes. If you had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
100.0g
50.0g
12.5g
8.5g
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
146C has a half-life of 5730 years how many grams of a 4.0 g sample would be left after 3.5 half-lives?
Tags
NGSS.HS-PS1-8
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
