MDCAT Physics: high-yield chapters and a numerical routine

Physics is 36 marks, and it is the subject where a clear method matters more than another page of formulas. This guide uses the official mark split and our past-paper counts to set a six-week cycle, then shows how to stop losing marks you already know.

The 36 marks and why numericals decide them

Physics is 36 of the 180 questions. That is 20 percent of the paper, and a large share of those questions asks you to calculate, read a graph or choose the correct relationship.

A numerical question tests three things at once: the concept, the formula and the arithmetic. You can know the concept and still lose the mark because you used centimetres in a metre formula. That is why a routine matters. It gives you the same sequence under pressure.

Do not measure your Physics preparation by how many formulas you can recite. Measure it by how many unfamiliar numericals you can start without help.

Reading the archive counts for Physics

Our archive counts distinct questions and the number of papers in which a topic appears. It covers six boards and papers from 2000 to 2026. The counts describe the papers we hold. They are not a forecast.

The highest topic count in Physics is Ohm's Law and DC Circuits at 257 questions across 84 papers. Wave Motion and Classification follows at 231 across 85. Nuclear Structure and Radioactivity has 214 across 80. Work, Power and Forms of Energy has 213 across 79. Newton's Laws of Motion has 172 across 78, and Kinematics has 136 across 70.

Those six topics are a sensible first block. They are not the whole syllabus, and a chapter with a small count can still supply an easy mark.

Current electricity and waves lead the table

Current Electricity spreads across Ohm's Law and DC Circuits (257 questions across 84 papers), Electrical Measurements and Instruments (65 across 39) and Internal Resistance and Power Transfer (13 across 12). Learn series and parallel combinations, internal resistance and the effect of a meter on a circuit. Draw the circuit before you write an equation.

Waves is the other heavy area. Wave Motion and Classification has 231 questions across 85 papers, Simple Harmonic Motion has 109 across 65, Superposition and Interference has 89 across 57, and Wave Characteristics and Speed of Sound has 84 across 53. Stationary Waves and Resonance adds 49 across 36.

Waves questions often change one variable and ask for the effect on another. Write the relation, mark what is constant, then reason. Do not substitute numbers until you know the direction of the change.

Mechanics: force, motion and energy

Work, Power and Forms of Energy has 213 questions across 79 papers. Newton's Laws of Motion has 172 across 78. Kinematics has 136 across 70. Projectile Motion has 87 across 54, and Collisions and Explosions has 37 across 33. Angular Kinematics adds 108 across 61, and Centripetal Force and Circular Dynamics has 65 across 43.

Mechanics rewards free-body diagrams. Draw every force, choose axes, then write the equations. A diagram takes thirty seconds and prevents the most common sign error.

For energy questions, decide the system before you choose a method. If non-conservative forces act, the work-energy theorem is usually shorter than a force-and-acceleration route. If the question asks for a time, kinematics may be shorter.

Electrostatics, magnetism and induction

Coulomb's Law and Electric Field has 131 questions across 67 papers. Capacitors and Dielectrics has 92 across 59. Electric Potential and Energy has 71 across 50. Force on Moving Charges has 101 across 60, and Magnetic Fields and Flux has 101 across 59. Faraday's and Lenz's Laws has 100 across 58, and Transformers and Power Transmission has 53 across 43.

These chapters share a small set of relationships. Learn the field, the force, the potential and the flux as separate quantities, then connect them. A question that asks for the direction of an induced current is testing Lenz's law, not the formula sheet.

Keep the right-hand rules on one page. Draw the hand, the field and the motion for each case. A rule you have drawn is easier to recall than a rule you have read.

Modern physics and nuclear: small chapters, reliable marks

Quantum Theory and Photoelectric Effect has 135 questions across 71 papers. Nuclear Structure and Radioactivity has 214 across 80. Atomic Spectra and Bohr Model has 82 across 51. Special Relativity has 38 across 28, and Wave-Particle Duality has 35 across 29.

Modern physics questions are often direct. Learn the photoelectric equation, the meaning of the work function and the effect of intensity versus frequency. For nuclear physics, learn the decay types, the conservation rules and the meaning of half-life. A half-life calculation is a ratio problem, not a memory test.

These chapters can lift a score because the content is finite. Do not leave them for the last night. Put them in the cycle and keep them there.

A numerical routine that prevents silly errors

Read the question twice. Write the known values with units. Convert to SI. Draw a diagram if the question describes a physical situation. Choose the equation from the quantities, not from the chapter title. Rearrange before substituting. Calculate, then check the unit and the size of the answer.

If the answer is not among the options, check the unit conversion first, then the sign, then the algebra. Do not start again from the beginning. Most errors sit in one of those three places.

After every practice set, list the errors by cause: concept, formula, unit, arithmetic or reading. A list of causes is more useful than a list of questions. It tells you what to practise next.

Units, graphs and formula recall

Keep a one-page formula sheet per chapter. Include the unit of each quantity and one condition for use. A formula without its condition is a trap.

For graphs, label the axes and the gradient before you answer. In a velocity-time graph, the gradient is acceleration and the area is displacement. In a current-voltage graph, the gradient relates to resistance. Knowing the meaning of the gradient and the area answers many questions without a calculation.

Test formula recall by writing from memory, then checking. Rereading a formula sheet creates recognition, not recall. Use flashcards for the relationships and a blank page for the derivations.

Keep a list of the symbols you mix up: wavelength and frequency, potential difference and electromotive force, mass and weight. A five-line list can save several marks. Read it before each timed set and add to it when a new pair causes an error.

A six-week Physics cycle and what to do when a chapter will not click

Use two Physics sessions each week, plus one mixed timed set. Weeks one and two: current electricity, waves and mechanics. Weeks three and four: electrostatics, magnetism, induction and thermodynamics. Weeks five and six: modern physics, nuclear physics and mixed papers.

When a chapter will not click, stop reading and work an example. Then close the solution and redo it. Then answer two similar questions without help. Then explain the method aloud in three sentences. If you cannot explain it, you do not have it yet.

Use practice for chapter drills and past papers for timed sections. The 2026 papers are free and do not use your 500 free attempts. Review the errors before you start the next paper.

If six weeks is too long, compress the cycle to four by using one session for two adjacent chapters and keeping the mixed set. Do not remove the mixed set. It is the only part of the cycle that trains the choice of method, and the choice is what the exam tests.