Science
9th Grade
NGSS covered
Used 10+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An element's half-life is a measure of radioactive decay
True
False
Tags
NGSS.HS-PS1-8
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is an isotope? (pick 2 answers)
element with different # of neutrons
element with different # of electrons
element with different atomic mass
element with different # of protons
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Only some isotopes have half-lives
True
False
Tags
NGSS.HS-PS1-8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many half-lives have passed if 50% of parent isotope remains?
1
2
3
4
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many half-lives have passed if 6.25% of original product remains?
1
2
3
4
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The time it takes for a half-life of Carbon-14 to pass is always the same
True
False
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many half-lives have passed if 12.5% of original isotope remains?
1
2
3
4
Tags
NGSS.HS-PS1-8
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