MDCAT Physics: Formulas, Topics and MCQ Practice

MDCAT physics is 36 MCQs, which is 20% of the 180-mark paper. Many students find it the hardest section because it mixes memory with calculation. The good news: the syllabus is fixed, there is no negative marking, and most questions test a small set of formulas and concepts you can drill. This guide covers the exact topics, the formulas that matter, how to attack numericals, and how to practice.

How much does physics count in MDCAT?

Physics is 36 MCQs out of 180 total, which is 20% of the marks. Biology leads with 81 MCQs (45%), then chemistry with 45 (25%), physics with 36 (20%), and English and Logical Reasoning with 9 MCQs each (5% each). The paper is 3 hours, paper-based, with no negative marking. As of the PMDC 2025 curriculum, the difficulty mix is 15% easy, 70% moderate, and 15% difficult, and the same syllabus carries forward to 2026.

Pass marks are 55% for MBBS admission and 50% for BDS. Physics will not make or break your merit on its own, but 36 marks with no penalty for guessing is too much to leave on the table.

What topics are in the MDCAT physics syllabus?

The MDCAT physics syllabus has 16 units, from Vectors to Nuclear Physics. The 2025 update added Vectors and Equilibrium, Fluid Dynamics, and Alternating Current, so do not skip them. Here is the full list with a practical priority and difficulty rating to help you sequence your prep.

Priority is a rough guide to how often a unit shows up and how many concepts it carries. Treat the high-priority units (mechanics, waves, electrostatics, current electricity) as your core, and lock down the easy units (Work and Energy, Current Electricity, Electronics, Atomic Spectra, Nuclear Physics) early for quick, reliable marks.

Which physics formulas should you memorize for MDCAT?

Build a one-page formula sheet and revise it daily. Most numerical MCQs come from a small set. These are the ones worth knowing cold.

Mechanics and motion

• Equations of motion: v = u + at, s = ut + (1/2)at^2, v^2 = u^2 + 2as
• Projectile: range R = u^2 sin(2theta)/g, max height H = u^2 sin^2(theta)/2g, time of flight T = 2u sin(theta)/g
• Newton's second law as rate of change of momentum: F = (mv - mu)/t
• Work, KE, PE: W = Fd cos(theta), KE = (1/2)mv^2, PE = mgh
• Power: P = W/t = Fv

Circular motion, waves, and heat

• Angular relations: v = r(omega), centripetal acceleration a = v^2/r
• Wave speed: v = f(lambda)
• Speed of sound (Newton-Laplace): v = sqrt(gamma P/rho)
• First law of thermodynamics: Q = (delta)U + W
• For an ideal gas: Cp - Cv = R

Electricity and modern physics

• Coulomb's law: F = kq1q2/r^2
• Ohm's law: V = IR; power P = VI = I^2R
• Fluid flow: equation of continuity Av = constant; Bernoulli's principle
• Half-life and decay: (lambda) = 0.693/T(half)
• Photon energy: E = hf

Do not just memorize symbols. For each formula, note the unit of every quantity and one situation where it applies. MDCAT loves to test whether you know when a formula holds, not only the formula itself.

How do you solve MDCAT physics numericals fast?

Speed comes from recognizing the formula and the trap, not from heavy calculation. With 36 MCQs and roughly a minute each, follow a fixed routine on every numerical.

1. Read the last line first. Identify exactly what is asked and its unit.
2. List the given values and convert units (cm to m, g to kg) before plugging in.
3. Pick the formula that links given to asked. Most MDCAT numericals need one or two steps.
4. Estimate the order of magnitude. If your answer is off by a power of ten, you made a unit error.
5. Use the options. If two choices have the same numbers but different units, the question is testing units, not math.
6. If stuck after 60 seconds, mark a guess and move on. No negative marking means a blank is always worse than a guess.

Train with a watch. The exam pressure is real, and the students who score well in physics are usually the ones who built calculation speed during practice, not the ones who knew more theory.

How should you practice MDCAT physics?

Practice MDCAT physics by drilling MCQs unit by unit, then mixing units in timed mock tests. Reading the textbook builds understanding, but MDCAT is a recognition game. You get fast and accurate only by doing hundreds of questions in the exam format.

• Finish one unit's concepts, then immediately do 30 to 50 MCQs on just that unit while it is fresh.
• Keep an error log. Write down every question you got wrong and why. Review it weekly.
• After covering the high-priority units, start full physics sections under a timer.
• Revise your formula sheet daily. Two weeks of daily revision beats one long cram session.

The fastest way to build that recognition is volume in the real format. You can practice MDCAT physics MCQs on Parhlai chapter by chapter, see worked explanations for every answer, and track which units are still weak so you spend your time where it counts.

Is MDCAT physics hard?

MDCAT physics feels hard because it mixes formula recall with quick calculation under time pressure, which is a different skill from biology's mostly memory-based questions. But the syllabus is small and fixed at 16 units, the difficulty is mostly moderate, and there is no negative marking. With a tight formula sheet and consistent MCQ practice, physics becomes one of the more predictable sections. It rewards practice more than raw talent.