MDCAT Physics Important Formulas 2026 — All 16 Units

How to use this MDCAT Physics formula sheet

Do not highlight this page. Close it and write the list for one unit on paper. Then open that unit’s quiz. A formula you cannot use on a shuffled MCQ is decoration.

$g=10$ m/s² in every gravity line on Physics Lab. Keep 9.8 out of these numericals.

Unit 37 · Vectors and Equilibrium formulas

Physics · 674 practice MCQs · Vector Addition, Scalar Product, Vector Product, Equilibrium 674 MCQs in the Vectors and Equilibrium quiz use these as the mark scheme.

• $R=\sqrt{A^2+B^2+2AB\cos \theta }$
• $A_x=A\cos \theta ,A_y=A\sin \theta$
• A· $B=|A||B|$ cos $\theta$ (0 ⇔ perpendicular)
• |A×B| = |A||B| sin $\theta$ (0 ⇔ parallel)
• $\tau =rF\sin \varphi$
• $\Sigma F$ = 0 and $\Sigma \tau$ = 0

Unit 38 · Force and Motion formulas

Physics · 1127 practice MCQs · Displacement, Velocity, Motion Graphs, Acceleration… 1127 MCQs in the Force and Motion quiz use these as the mark scheme.

• $v^2=u^2$ + 2as $s=ut$ + ½at²
• $R=u^{2}sin2\theta /gH=u^2{\sin }^2\theta /2\mathrm{g}T=2u\sin \theta /g$
• $N=m(g\pm a)$
• $p=mvJ=\Delta p=m(v-u)$
• $a=g$ sin $\theta$ (smooth incline)

Unit 39 · Work and Energy formulas

Physics · 872 practice MCQs · Work, Kinetic Energy, Potential Energy, Power… 872 MCQs in the Work and Energy quiz use these as the mark scheme.

• $W=Fs\cos \theta$
• $KE=\frac{1}{2}m{v}^2$
• $PE=mgh$
• $\Delta KE=W_{net}$
• $P=Fv=W/t$
• $\eta =W_{out}/E_{in}$

Unit 40 · Rotational and Circular Motion formulas

Physics · 694 practice MCQs · Angular Displacement, Angular Velocity, Angular Relations, Torque 694 MCQs in the Rotational and Circular Motion quiz use these as the mark scheme.

• $\theta =s/r$
• $v=r\omega$
• $a_c=v^2/r=r\omega {}^2$
• $\tau =I\alpha$
• $L=I\omega$
• $K{E}_{r}oll=\frac{1}{2}m{v}^2+\frac{1}{2}I\omega {}^2$

Unit 41 · Fluid Dynamics formulas

Physics · 788 practice MCQs · Terminal Velocity, Fluid Drag, Fluid Flow, Continuity Equation… 788 MCQs in the Fluid Dynamics quiz use these as the mark scheme.

• $Av=constant$
• $P+\rho gh+\frac{1}{2}\rho v^2=constant$
• $F_d=6\pi \eta rv$
• $v_t$ from $mg=6\pi \eta rv$ + upthrust

Unit 42 · Waves formulas

Physics · 1187 practice MCQs · Wave Motion, Progressive Waves, Wave Properties, Wave Speed… 1187 MCQs in the Waves quiz use these as the mark scheme.

• $T=2\pi \sqrt{m/k}$
• $T=2\pi \sqrt{l/g}$
• $v=f\lambda$
• $f_{beat}=|f_1-f_2|$
• $E=\frac{1}{2}k{A}^2$

Unit 43 · Thermodynamics formulas

Physics · 873 practice MCQs · Thermal Equilibrium, Specific Heat, Thermodynamic Work, First Law… 873 MCQs in the Thermodynamics quiz use these as the mark scheme.

• $\Delta U=Q+W$
• $W=P\Delta V$
• $Cp-Cv=R$
• $Q=mc\Delta T$

Unit 44 · Electrostatics formulas

Physics · 910 practice MCQs · Coulomb's Law, Electric Field, Electric Potential, Capacitors 910 MCQs in the Electrostatics quiz use these as the mark scheme.

• $F=k{q}_1{q}_2/r^2$
• $E=F/q_0$
• $V=kq/r$
• $\tau =RC$
• $Q=Q_0(1-e^{-t/\tau })$

Unit 45 · Current Electricity formulas

Physics · 1095 practice MCQs · Electric Current, Ohm's Law, Resistivity, Internal Resistance… 1095 MCQs in the Current Electricity quiz use these as the mark scheme.

• $I=Q/t$
• $V=IR$
• $R=\rho L/A$
• $V=E-Ir$
• $P_{\max }$ at $R=r$

Unit 46 · Electromagnetism formulas

Physics · 702 practice MCQs · Magnetic Field, Magnetic Flux, Charged Particles 702 MCQs in the Electromagnetism quiz use these as the mark scheme.

• $F=qvB\sin \theta$
• $\Phi =BA\cos \theta$
• $r=mv/qB$
• $T=2\pi m/qB$

Unit 47 · Electromagnetic Induction formulas

Physics · 549 practice MCQs · Faraday's Law, Lenz's Law, Transformers 549 MCQs in the Electromagnetic Induction quiz use these as the mark scheme.

• $\epsilon =-Nd\Phi /dt$
• $Vp/Vs=Np/Ns$
• $P=VI$
• line $loss\propto I^{2}R$

Unit 48 · Alternating Current formulas

Physics · 425 practice MCQs · AC Phase, AC Circuits, EM Spectrum 425 MCQs in the Alternating Current quiz use these as the mark scheme.

• $X_C=\frac{1}{\omega C}$
• $X_L=\omega L$
• $c=f\lambda$
• $i=I_0\sin (\omega t+\varphi )$

Unit 49 · Electronics formulas

Physics · 450 practice MCQs · Rectification, PN Junction 450 MCQs in the Electronics quiz use these as the mark scheme.

• half-wave $V_{dc}$ = Vm/ $\pi$
• full-wave $V_{dc}$ = 2Vm/ $\pi$
• $f_{full}=2f_{in}$
• $Si\approx 0.7\mathrm{V},Ge\approx 0.3\mathrm{V}$

Unit 50 · Dawn of Modern Physics formulas

Physics · 715 practice MCQs · Quantum Radiation 715 MCQs in the Dawn of Modern Physics quiz use these as the mark scheme.

• $E=hf$
• $E=hc/\lambda$
• $p=h/\lambda$
• $K_{\max }=hf-\varphi$

Unit 51 · Atomic Spectra formulas

Physics · 393 practice MCQs · Line Spectra 393 MCQs in the Atomic Spectra quiz use these as the mark scheme.

• $E_n=-13.6/n^{2}eV$
• $1/\lambda =R(1/n_1^2-1/n_2^2)$
• $\lambda (nm)\approx 1240/\Delta E(eV)$
• lines from n: n(n−1)/2

Unit 52 · Nuclear Physics formulas

Physics · 824 practice MCQs · Nuclear Structure, Radioactive Decay, Half-Life, Radiation Uses 824 MCQs in the Nuclear Physics quiz use these as the mark scheme.

• $A=Z+N$
• $\lambda =0.693/T_{1/2}$
• $N=N_0{e}^{-\lambda t}$
• $A=\lambda N$
• $\alpha :A\to A-4,Z\to Z-2$

After the sheet

The traps guide names how these formulae get stolen. The numericals guide works a set of them with $g=10.$ The chapter-wise MCQ index is the door list.