Radioactive Isotope Half-Life Quiz
Interactive Video
•
Physics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Evelyn Hayes
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary concept of half-life as explained using a coin toss analogy?
The time it takes for a coin to land tails up
The time it takes for half of a radioactive sample to decay
The time it takes for a coin to land heads up
The time it takes for all isotopes to decay
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long is the half-life of Strontium-90?
86.4 years
57.6 years
28.8 years
14.4 years
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of decay does the half-life of Strontium-90 represent?
Quadratic decay
Logarithmic decay
Linear decay
Exponential decay
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the half-life equation, what does 'a naught' represent?
The half-life duration
The remaining amount of isotope
The original amount of isotope
The time elapsed
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the half-life of an isotope is 28.8 years, how many half-lives have passed in 57.6 years?
Three half-lives
Four half-lives
Two half-lives
One half-life
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What fraction of a radioactive isotope remains after two half-lives?
1/16
1/2
1/4
1/8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of Zinc-71 remain after 7.2 minutes if the original amount was 100 grams and the half-life is 2.4 minutes?
6.25 grams
25 grams
50 grams
12.5 grams
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