Radioactivity

Question 1

Name 3 ionising radiations were exposed to

Answer 1

Potassium
Rocks
Cosmic rays

Question 2

Radioactivity occurs when a unstable nucleus decays and releases or emits an alpha particle, a ———particle or a ———wave
——— particles have the least energy and can be stopped by a thin sheet of paper, ——— particles can be stopped by aluminium and nothing can stop ——— rays

Answer 2

Alpha
Beta
Gamma
Alpha
Beta
Gamma

Question 3

What is the most dangerous one of the 3
Beta
Alpha
Gamma

Answer 3

Alpha

Question 4

What is the least dangerous one of the 3
Alpha
gamma
beta

Question 5

What is the middle dangerous
Gamma
Beta
Alpha

Answer 5

Beta

Question 6

What type of radiation is used when x-ray scans are taken

Answer 6

Electromagnetic

Question 7

How are the bright images in the shape of your bones formed on the photographic film

Answer 7

The bones contain calcium which has a high atomic number. These atoms are more likely to absorb the x-rays leaving the film white

Question 8

Why are the bones the brightest image

Answer 8

They are the most dense

Question 9

What is the name given to the type of diagnostic scan which shows more detail than an x-ray

Answer 9

A ct ( computed tomography)

Question 10

Apart from checking fractures what part of your body may be 76er investigation when having an x-ray

Answer 10

Tumours,blood clots,infections, cavities

Question 11

What is the name given to the radioactive substance which is injected or ingested when undergoing a radioactive trace examination

Answer 11

Radioactive tracer

Question 12

What type of radioactivity is detected in this type of medical examination

Answer 12

Gamma

Question 13

What part of your body may be under investigation when undergoing this type of examination

Answer 13

Brain scans, heat deflects, Alzheimer’s