Have an account?
Skip to Content
Build your own quiz
.png)
21 questions
Show Answers
See Preview
- 1. Multiple Choice
The unstable things in radioactive substance that emit radioactive rays
nucleus
neutron
proton
electron
- 2. Multiple Choice
SI unit for radioactivity
Aq
Bq
Ci
Fahrenheit
- 3. Multiple Choice
Unit used in radioactivity
Aq
Bq
Ci
Fahrenheit
- 4. Fill in the Blank
time taken for the number of undecayed nuclei to be reduced to half of its original value
this is also known as
- 5. Multiple Choice
Which of the following are radioactive radiation in the form of radioactive ray?
alpha, α
theta, θ
beta, β
gamma, γ
delta, δ
- 6. Multiple Choice
Which of the following are radioactive radiation in the form of particle?
alpha, α
theta, θ
beta, β
gamma, γ
delta, δ
- 7. Multiple Choice
Which of the following are radioactive radiation?
alpha, α
theta, θ
beta, β
gamma, γ
delta, δ
- 8. Multiple Choice
Who won Nobel Price because of discovery in radioactivity?
- 9. Fill in the Blank
Cobalt-60 decays to form Nickel-60 with half-life of 5 years.
Calculate the mass of Cobalt-60 after 20 years given its original mass is 16g.
- 10. Fill in the Blank
The radioactive substance of P has a half-life of 2 hours. If the initial activity of P is 2000 Ci, what is the activity of substance after 8 hours?
- 11. Fill in the Blank
how long is the half-life of radioactive substance in the diagram?
- 12. Multiple Choice
What is a safe level of background radiation does?
less than 0.2 mSv/h
less than 0.2 mSv/s
less than 0.2 μSvh
less than 0.2 μSv/s
- 13. Multiple Choice
Natural source of ionising radiation
Nuclear test
cosmic radiation
background radiation
nuclear accident
- 14. Multiple Choice
Ionising radiation are
Alpha particle, α
Beta particle, β
Gamma ray, γ
X-ray
- 15. Fill in the Blank
Which radioactive radiation has a high ionising power
- 16. Fill in the Blank
What radioactive radiation has no deflection when passing through magnetic field?
- 17. Multiple Choice
Gamma ray has a high penetration power.
Which of the following can stop gamma ray.
a piece of paper
3 mm aluminium sheet
10 cm lead block
human body tissue
- 18. Fill in the Blank
Diagram shows an apparatus to detect radioactive dose absorbed into the body.
Name that apparatus.
- 19. Multiple Choice
Which of the following changes an atom into an anion?
gains one or more electron
loses one or more electron
gains one or more proton
loses one or more proton
- 20. Multiple Choice
Which of the following is the safest way to store radioactive materials?
Store in a thick and strong fiber glass case
Store in a thick-walled container made of lead
Store in an iron box and buried in the ground
Store in a vacuum container made from copper
- 21. Poll
are you really understand radioactivity???
Yes
No
- Answer choicesTagsAnswer choicesTags