FRCR Physics Pack
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First FRCR, Part 1, physics module

Physics for the First FRCR, in one place.

Revision notes, true/false banks, interactive quizzes and full timed mocks, sorted by syllabus topic, plus two live physics labs. Everything opens on this page.

30Full mocks
1,979Practice statements
0Files
Start by topicOpen the practice bank
W anode tube spectrum80 kVp, 2.5 mm Al
80 2.5 mm
Emax 80 keVMean –Output ∝ kVp² –K lines present
Drag the sliders. Kα (59.3 keV) and Kβ (67.2 keV) need a tube voltage above tungsten's 69.5 keV K-shell binding energy; filtration hardens the beam.

Study by modality

Each topic holds its notes, question banks and quizzes. Topic exams sit with their topic. Choose one to see its files.

How an ultrasound image is made

One

The transducer

A row of piezoelectric elements in the probe face turns voltage into short pressure pulses, then turns the returning echoes back into voltage.

Two

Coupling to the skin

Gel fills the air gap. Without it about 99.9% of the sound reflects at the skin, because the acoustic impedance of air is tiny compared with soft tissue.

Three

Pulse and echo

Each pulse travels at about 1540 m/s. The scanner times every echo and places it at depth d = c·t / 2, roughly 13 µs of round trip per centimetre.

Four

Brightness mode

Echo strength becomes brightness, one scan line at a time across the sector. A cyst is black with brighter tissue behind it; a stone is bright with a shadow beneath.

Ultrasound lab

Change the frequency and watch the trade-off: higher frequency sharpens the speckle but loses depth. Turn the gain down to see the cyst's posterior enhancement and the stone's acoustic shadow.

Curvilinear probe
B-modeSimulated image
Wavelength λ = c / f. Shorter wavelength gives finer axial resolution but is attenuated faster.
Deeper imaging means longer listening time per line, so the maximum pulse repetition frequency falls.
Gain amplifies signal and noise equally. Time gain compensation here makes up for up to 50 dB of depth loss.
–Wavelength
–Axial resolution (2-cycle pulse)
–Usable depth in this model
–Maximum PRF = c / 2d
–Frame rate at 128 lines
0.5dB/cm/MHz attenuation (one way)
  • Left: anechoic cyst with a bright back wall and posterior acoustic enhancement.
  • Centre: small vessel, anechoic lumen with echogenic walls.
  • Right: echogenic stone casting an acoustic shadow.

Mock exams, in the order I sat them

Every paper follows the real format. Sit them timed, then read the explanation for each statement.

40Stems
× 5True / false each
200Marks
2 hTime allowed

Practice bank

Drill statements one at a time by module with instant explanations, sit any of the 30 mocks with a timer and navigator, and track your weakest topics. Progress stays on your device; no sign-up.

Open the practice bank
1,979statements
30timed mocks
6modules

Library

Search by file name, or filter by topic and type. Files open in the reader on this page.

Add a link

Link to a Google Drive file, a video or a website. To add a new PDF, put it in the files folder and add it here as a link to its path.

How to use the pack

  1. Topic by topic

    Read the notes, work through the question bank, then test yourself with the interactive quiz.

  2. Full mocks, timed

    Start with the early papers, then the final-stretch set in day order. Review every explanation, right or wrong.

  3. Final days

    The equations sheet and the final revision texts: one pass the night before, one the hour before.

ملحوظة: الملفات متاحة مجانًا للاستخدام والمشاركة. دي ماتريال شخصية اتعملت أثناء المذاكرة، فلو لاحظت أي غلطة راجعها من الكتاب ويا ريت تقول في الجروب عشان نصححها لبعض. بالتوفيق للجميع.