AQA GCSE Physics Unit 3.1

Twenty questions on the first section of Unit 3 in AQA GCSE Physics: Medical applications of physics.

Quiz by Matthew T, updated more than 1 year ago More Less Created by Matthew T over 10 years ago

Resource summary

Question 1

True or false? When X-rays are being taken, barium meals are used to provide a contrast medium to show soft tissues.

Question 2

What does a charge-coupled device (CCD) do in X-ray imaging? Create an electrical charge to start emission of X-rays Convert X-rays to light to show an image Create a computerised tomography, 3D, scan

Question 3

What is the frequency of ultrasound waves? Less than 20Hz Between 20Hz and 20,000Hz Greater than 20,000Hz

Question 4

True or false? If an ultrasound transducer is used to measure the length of an eyeball, this is called an I-scan.

Question 5

Which of these formulae is used to calculate the depth of a boundary using ultrasound? depth = speed of wave * transit time depth = 2 * speed of wave * transit time depth = 0.5 * speed of wave * transit time

Question 6

True or false? Snell's law states that the sine of the incident angle divided by the sine of the refractive angle is the same for each type of substance (e.g. it is the same in all glass).