Booklet 5 Raidoactivity Flashcards by Izziexxxfrogz 🐸🥑 | Brainscape

Q

Name three ionising radiations that we are exposed to

A

Cosmic radiation
Rock and soil
radon gas

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Q

What is the average background radiation

A

0.15 micro-siverts

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Q

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

A

Hiroshima

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Q

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

A

It’s fluorescent under UV light

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Q

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

A

It turned into green trinite

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Q

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

A

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

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Q

What dose of ionising radiation would be fatal

A

2 sieverts

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Q

Who gets the highest exposure to radiation

A

Smoker

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Q

Who gets the lowest amount of radiation

A

Dentist

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Q

Explain the properties of an alpha particle

A

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

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Q

Explain the properties of a beta particle

A

Can be stopped by aluminium and are very fast and light

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Q

What are the properties of a gamma wave (ray)

A

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

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Q

What did Marie curie do

A

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

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Q

What did Herni becquerel discover

A

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

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Q

What did Ernest Rutherford discover

A

Discovered the two types of radiation

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Q

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

A

Electromagnetic (x-rays)

Q

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

A

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

Q

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

A

CT (computer photography)

Q

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

A

Tumours
Blood clots
Infections
Cavity’s

Q

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

A

Radio active tracer

Q

What type of radioactivity is detected in a tracer examination

A

Gamma

Q

What parts of your body are usually undergoing a tracer exam

A

Brain scans
Heat defects
Alzheimer’s