Who discovered X-ray accidentally in 1895?

Radioactivity Quiz

Quiz
•
Science
•
3rd Grade
•
Easy
Rui Chung
Used 2+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marie Curie
Wilhelm Roentgen
Pierre Curie
Henri Becquerel
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Henri Becquerel discover in 1896?
X-ray
Polonium and Radium
Uranium
Proof of radioactivity
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the S.I unit for radioactivity?
Roentgen
Sievert
Becquerel
Curie
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the half-life of a radioactive substance?
Time taken for the number of nuclei to decay to half of its original number
Time taken for the number of nuclei to decay to one-fourth of its original number
Time taken for the number of nuclei to decay to one-third of its original number
Time taken for the number of nuclei to decay to one-tenth of its original number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a radioactive substance had a half life of 5 days, what fraction would be left after 20 days?
1/2
1/4
1/8
1/16
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of radiation has the highest ionising power?
Beta particles
Gamma ray
Alpha particles
X-ray
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit of dose rate measurement for background radiation?
Curie
Joule
Sievert
Watt
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