Introduction to Radiology

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​11-14

Review!

Multiple Choice

What is "energy"?

• Energy is a form of temperature.
• Energy is the speed of light.
• Energy is the capacity to do work.
• Energy is a type of matter.

Multiple Choice

What two types of energy are used to create radiographs?

• Mechanical energy and gravitational energy
• Nuclear energy and sound energy
• Electric and electromagnetic energy

• Chemical energy and potential energy

Multiple Choice

What is the electromagnetic spectrum?

• The range of all electromagnetic radiation, categorized by wavelength or frequency.

• The electromagnetic spectrum refers to the visible colors of light only.
• The electromagnetic spectrum is a type of sound wave.

Drag and Drop

A tiny particle of light is called a ​

Placeholder

Drag these tiles and drop them in the correct blank above

photon.

electron.

neutron.

proton.

18-21

Review!

Match

Match the following

• Distance between successive peaks

• How fast a photon travels in a period of time

• The height of the wave

• Unit of frequency

Wavelength

Frequency

Amplitude

Hertz

• Wavelength

• Frequency

• Amplitude

• Hertz

Drag and Drop

Longer wavelengths = ​

Placeholder

energy.

Shorter wavelength = ​

Placeholder

energy.

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less

more

Multiple Choice

Which wavelength has the higher frequency?

Multiple Choice

Which wave has more energy?

29-34

Review!

Multiple Choice

Why is there an "X" in the name X-ray?

• The 'X' signifies an unknown type of radiation.
• The 'X' is a brand name for a type of film used in imaging.
• The 'X' indicates the level of radiation intensity.

Multiple Choice

X-rays are positively charged.

• True

• False

Multiple Choice

X-rays photons have no mass.

• True

• False

Multiple Choice

X-rays are harmless to living tissue.

• True

• False

Drag and Drop

X-rays travel at the speed of ​

Placeholder

in a ​

Placeholder

.

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light

vacuum

sound

water

air

Labelling

Label this diagram:

Drag labels to their correct position on the image

Frequency

Amplitude

Trough

Wavelength

Peak