Radiation Quiz: Is it Ionizing or Not? - CNSC Online - Canadian Nuclear Safety Commission

Radiation Quiz: Ionizing or Not?

Radiation Quiz

Table of Contents

Radiation Quiz

Ionizing or Not?

Ionizing or Not?
Test your knowledge!

Illustration of a person exposed to an ionizing radiation source and a non-ionizing source

Radiation Quiz

What is Radiation?

Illustration of a person holding a source of non-ionizing radiation

Radiation is energy!

It can be in the form of a wave or a particle.

It is naturally everywhere in our environment, but we can also make it.

Radiation Quiz

What is Radiation?

When it comes to radiation and the human body, we can divide radiation in two different types:

Non-ionizing radiation is low energy
Each particle or wave generally does not have enough energy to change the structure of living cells in your body.

Ionizing radiation is high energy
Each particle or wave can have enough energy to change the structure of living cells in your body.

Illustration of a person exposed to an ionizing radiation source and a non-ionizing source. The ionizing radiation is changing the structure of cells in the body.

Radiation Quiz

What is Radiation?

Although ionizing radiation can be harmful to your body, small amounts are OK to make sure you are healthy. It is a lot like being exposed to sunlight: being exposed to small amounts is fine, but being exposed for too long or to too much ionizing radiation can be harmful.

 
go!

Your Turn!
Can you figure out if the radiation is ionizing or not ionizing?

Radiation Quiz

Question 1


Ionizing or Not?
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The energy used in microwaves to heat our food is …

The water in your food takes energy from microwaves inside the microwave oven; this causes the water, and the food to warm up. Although microwaves are best known for heating food, they are also used in GPS units, cell phone towers, and in weather mapping.

Radiation Quiz

Question 2

Ionizing or Not?
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The X-rays used at the dentist are …

X-Rays are a type of radiation that is similar to light, but that has much more energy. They are used to show doctors or dentists what is going on inside your body. An x-ray machine sends out invisible x-ray energy, which passes through your body to make a picture of your bones or teeth.

Radiation Quiz

Question 3

Ionizing or Not?
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The energy from the antenna at the radio station that reaches my receiver when I listen to music is …

Radio waves not only let you hear music but they also let you chat on cell phones, see pictures on your television, and play with remote control toys. Radio waves spread out from one point in all directions, through the air, at the speed of light. When the waves meet an antenna, they can be decoded into music, conversations, and pictures.

Radiation Quiz

Question 4

Ionizing or Not?
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The bone scan used to determine the cause of back pains, find broken bones or to diagnose bone cancer …

SPECT and PET scans and other similar tests are all examples of different types of nuclear medicine. These types of tests give doctors another way to look inside your body. Nuclear medicine uses computers, special cameras, and small amounts of ionizing radiation that disappears quickly from your body. These tests are performed by nuclear medicine technologists who have completed specialized training in this field.

Radiation Quiz

Question 5


Ionizing or Not?
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Radiation used in cancer treatments is …

Ionizing radiation works by killing cancerous cells. When radiation damages a cancer cell, it can’t grow and divide any more. Over time, the cancer cell dies. Health Canada works with doctors and nurses to make sure that patients receive the right amount of radiation for their height, weight and age.

Radiation Quiz

Question 6

Ionizing or Not?
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The gamma rays in medical tests are …

Gamma rays are a lot like x-rays but they have more energy. They can travel very far in air or water. When gamma radiation is used by doctors, it can do a lot of good, like killing cancer cells. You can also find gamma rays in space but they don’t reach us because they are blocked by earth's atmosphere.

Radiation Quiz

Question 7


Ionizing or Not?
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The light I can see with the naked eye is…

Visible light waves are the only types of energy we can see. We see these waves as the colors of the rainbow. When all the waves are seen together, they make white light. Some transparent materials (like glass, water droplets and ice crystals) can break apart wavelengths of white light creating a rainbow.

Radiation Quiz

Question 8


Ionizing or Not?
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The ultraviolet B (UVB) rays that cause sunburns are...

Ultraviolet B radiation comes from the sun and our bodies use it to make vitamin D. Sunscreen blocks UVB and prevents sunburn and skin damage that can occur from too much time in the sun.

Radiation Quiz

Question 9

Ionizing or Not?
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The alpha particles in a smoke detector are …

Alpha particles are large in the world of particles, but you still can’t see them with the naked eye. They can’t travel very far in air or water; they can’t even penetrate a sheet of paper. So when they are outside the body they are not dangerous to people. Very small amounts of material that emits alpha radiation are used in some household smoke alarms. Some building materials such as glass and bricks may also contain small amounts of naturally occurring alpha radiation.

Radiation Quiz

Question 10

Ionizing or Not?
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The beta particles in some exit signs are …

Beta particles are smaller and can travel a bit further than alpha particles in air and water but can be stopped by a sheet of aluminum foil or plexiglas. Small amounts of beta radiation are used in certain types of “exit” signs to make them glow.

Radiation Quiz

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