AQA Physics module 3

Here are some revision flashcards for AQA module 3a,

Enjoy!

Good luck in your test

Matt

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  • Created by: Matt
  • Created on: 21-05-13 12:35
Name 2 ways that X-rays are used in Medicine
CT scans, Cancer Treatment
1 of 14
How do radiographers minimise their radiaton dose?
Wear lead aprons, stand behind a lead screen, or leave the room while scans are being done
2 of 14
What is ultrasound?
Sound with a higher frequency than we can hear
3 of 14
what is the range of human hearing?
20-20,000 Hz
4 of 14
Name two uses of ultrasound
Breaking down kidney stones, and pre-natal scanning of a fetus
5 of 14
What is refractive index?
The ratio of the velocity of light in a vacuum to its velocity in a specified medium
6 of 14
How do you work out refractive index?
Refractive index= sin i divided by sin r
7 of 14
Give the two types of lenses
Converging and diverging
8 of 14
What type of lenses do magnifying instruments use?
Converging lenses
9 of 14
What is the magnification formula?
Magnification= Image height divided by Object height
10 of 14
Name 5 parts of the eye
Any 5 of the following: Iris, Cornea, Pupil, Lens, Ciliary Muscle, Retina, Suspensory Ligaments
11 of 14
What lenses correct long-sighted vision?
Converging lenses
12 of 14
What lenses correct short-sighted vision?
Diverging lenses
13 of 14
How does laser eye surgery work?
A laser is used to vaporise some of the cornea to change its shape, which changes its focusing ability
14 of 14

Other cards in this set

Card 2

Front

How do radiographers minimise their radiaton dose?

Back

Wear lead aprons, stand behind a lead screen, or leave the room while scans are being done

Card 3

Front

What is ultrasound?

Back

Preview of the front of card 3

Card 4

Front

what is the range of human hearing?

Back

Preview of the front of card 4

Card 5

Front

Name two uses of ultrasound

Back

Preview of the front of card 5
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