Radiation

Question 1

What is the meaning of fission?

Answer 1

Fission is the division or splitting of two or more parts.

Question 2

What is a beta particle?

Answer 2

A fast moving electron

Question 3

What is an alpha particle?

Answer 3

An alpha particle is a helium nucleus with 2 protons and 2 neutrons.

Question 4

What is ionisation?

Answer 4

Ionisation is the gain or the loss of an electron.

Question 5

What are 2 safety precaution when handling radiation?

Answer 5

Don’t put the radiation close to your eyes

Reduce time exposure to the source

Question 6

What is the most ionising radiation in order?

Answer 6

Alpha 1 beta 2 gamma 3

Question 7

What is the formula for activity ?

Answer 7

A=N/t

Question 8

What type of nuclear reaction takes place in a nuclear power

station’ s reactor?

Answer 8

Fission

Question 9

State two factors that can affect the background radiation level?

Answer 9

Radon gas

Cosmic Rays

Question 10

What is meant by the radiations weighting factor (Wr)?

Answer 10

The radiation weighting factor (Wr) indicates the ability of a particular type of radiation to cause damage to a living tissue.

Question 11

What is the formula for absorbed dose?

Answer 11

D=E/m