Booklet 5 Raidoactivity

Question 1

Name three ionising radiations that we are exposed to

Answer 1

Cosmic radiation
Rock and soil
radon gas

Question 2

What is the average background radiation

Answer 2

0.15 micro-siverts

Question 3

What’s the name of the place the first atomic bomb was dropped in WW2

Answer 3

Hiroshima

Question 4

What unique property does uranium ore have as observed under UV light

Answer 4

It’s fluorescent under UV light

Question 5

What happened to the sand in New Mexico after the first ever atomic bomb was dropped

Answer 5

It turned into green trinite

Question 6

Why do flight attendants and pilots have a limit to the amount of flights they can take a year?

Answer 6

More radiation exposer from the sun due to flights at high altitudes. It’s to protect them from exceeding high exposer of radiation

Question 7

What dose of ionising radiation would be fatal

Answer 7

2 sieverts

Question 8

Who gets the highest exposure to radiation

Answer 8

Smoker

Question 9

Who gets the lowest amount of radiation

Answer 9

Dentist

Question 10

Explain the properties of an alpha particle

Answer 10

Least energy and can be stopped by a thin sheet of paper are also very heavy

Question 11

Explain the properties of a beta particle

Answer 11

Can be stopped by aluminium and are very fast and light

Question 12

What are the properties of a gamma wave (ray)

Answer 12

They have no mass,no charge, pure energy nothing can stop gamma rays

Question 13

What did Marie curie do

Answer 13

Discovered polonium and radium this led to the discovery’s and creations of atomic bombs. She discovered they were radioactive which meant when they were broken down they gave off invisible rays that could pass through a solid

Question 14

What did Herni becquerel discover

Answer 14

First to discover radiation. He looked at how different materials affected how the sun heated objects

Question 15

What did Ernest Rutherford discover

Answer 15

Discovered the two types of radiation

Question 16

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

Answer 16

Electromagnetic (x-rays)

Question 17

Why do your bones come so bright on the photographic film compared to things like your muscle and organs

Answer 17

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 18

What’s the name of the diagnostic scan which shows more detail than an x-ray

Answer 18

CT (computer photography)

Question 19

What parts of your body may be under investigation when having an x-ray

Answer 19

Tumours
Blood clots
Infections
Cavity’s

Question 20

What’s the name given to the radioactive substance which is injected or ingested when undergoing a radioactive tracer examination?

Answer 20

Radio active tracer

Question 21

What type of radioactivity is detected in a tracer examination

Answer 21

Gamma

Question 22

What parts of your body are usually undergoing a tracer exam

Answer 22

Brain scans
Heat defects
Alzheimer’s