Half Life and Radioactivity
9th Grade
•25 Qs
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Half Life and Radioactivity
Quiz
•
Science
•
9th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a Geiger counter?
an instrument that uses sonar to bounce sound waves off the ocean bottom
an instrument that measures vibrations in the ground
an instrument that detects the particles emitted or given off by decaying atoms
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a half-life?
the time required for one half of the radioactive atoms in a sample to decay
the time required for one third of the radioactive atoms in a sample to decay
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the radioactive atoms in a sample decay by half...
alpha decay
Beta decay
half-life
Tags
NGSS.HS-PS1-8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Uranium238 take _________________for one half-life.
5730 years
20 billion
1.65 million
4.5 billion
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the half-life of the radioactive substance?
50%
25%
5 years
10 years
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the half life of the substance shown in the graph.
4 days
8 days
12 days
16 days
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
After 2 half lives, what percent is the parent isotope?
100%
50%
75%
25%
Tags
NGSS.HS-PS1-8
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