Nuclear radiation test questions

1

What are the (possible) three particles found inside an atom?

2

What is the electrical charge found on a proton?

3

What particles are found inside the nucleus of an atom?

4

What is ionisation?

5

An unknown source of radiation is blocked by 5 mm of aluminium but not blocked by paper.

What kind of radiation is present?

6

A student in a classroom measures 450 counts on a Geiger-Muller tube in 5 minutes.

What is the background radiation in the classroom?

7

What steps should be taken when dealing with radioactive sources?

8

What is the absorbed dose of a 2 kg piece of tissue exposed to 500 mJ of energy?

9

A substance has a half life of 60 seconds. How long will it take for its activity to decrease from 20 kBq to 2.5 kBq?

10

What type of energy is released by the reactions inside a nuclear reactor?