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🇵🇰 AKU MBBS Admission Test · flashcards
AKU MBBS Admission Test Physics Flashcards
61 question-and-answer cards covering Physics as it is examined in AKU MBBS Admission Test. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Physics deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Define resonance.
Resonance occurs when a system is driven at its natural frequency, causing the amplitude of oscillation to become maximum because energy transfer from the driver is most efficient.
State the formula for the fundamental frequency of a stretched string.
f = (1/2L) sqrt(T/mu), where L is the length, T is the tension, and mu is the mass per unit length. The fundamental has one antinode and nodes at both ends.
State the Doppler effect and what happens to observed frequency as a source approaches or recedes.
The Doppler effect is the apparent change in frequency due to relative motion between source and observer. Frequency increases (pitch rises) when they approach and decreases (pitch falls) when they recede.
Distinguish between heat and temperature.
Heat is the total thermal energy transferred between bodies due to a temperature difference (in joules). Temperature is the measure of the average kinetic energy of particles and determines the direction of heat flow (in kelvin/celsius).
Convert between Celsius and Kelvin, and give absolute zero.
K = degrees C + 273.15. Absolute zero is 0 K = -273.15 degrees C, the temperature at which molecular kinetic energy is minimum.
Give the formulas for linear, areal, and volumetric thermal expansion.
Linear: delta L = L0 alpha delta T. Areal: delta A = A0 (2 alpha) delta T. Volumetric: delta V = V0 (3 alpha) delta T, where alpha is the coefficient of linear expansion.
State the first law of thermodynamics.
The heat supplied to a system equals the increase in its internal energy plus the work done by the system: Q = delta U + W. It is a statement of conservation of energy.
State the second law of thermodynamics.
Heat cannot spontaneously flow from a colder body to a hotter body; equivalently, no engine can convert all absorbed heat into work (entropy of an isolated system tends to increase).
Give the formula for the efficiency of a Carnot engine.
Efficiency = 1 - T_cold/T_hot, where temperatures are in kelvin. Carnot efficiency is the maximum possible for an engine between two given temperatures.
State the postulates of the kinetic theory of gases (key assumptions).
Gas consists of many tiny molecules in constant random motion; molecular volume is negligible vs container; collisions are perfectly elastic; no intermolecular forces except during collisions; average kinetic energy is proportional to absolute temperature.
Relate the average translational kinetic energy of a gas molecule to temperature.
Average translational KE = (3/2)kT per molecule, where k is the Boltzmann constant and T is absolute temperature. This shows temperature is a measure of molecular kinetic energy.
State the laws of reflection of light.
1) The incident ray, reflected ray, and the normal at the point of incidence all lie in the same plane. 2) The angle of incidence equals the angle of reflection.
State Snell's law of refraction and define refractive index.
n1 sin(theta1) = n2 sin(theta2). The refractive index n = speed of light in vacuum/speed in medium = c/v; it measures how much a medium bends light.
Define total internal reflection and the critical angle.
Total internal reflection occurs when light travels from a denser to a rarer medium and the angle of incidence exceeds the critical angle, so all light reflects back. Critical angle: sin(theta_c) = 1/n (for medium to air).
Write the mirror/lens formula and the magnification formula.
1/f = 1/v + 1/u (lens and mirror, using sign convention). Magnification m = h_image/h_object = -v/u (lens) or m = -v/u for mirrors. For mirrors f = R/2.
Compare the images formed by convex and concave lenses.
A convex (converging) lens can form real, inverted images or, when the object is within the focal length, a virtual, magnified, upright image. A concave (diverging) lens always forms a virtual, upright, diminished image.
State the condition for constructive and destructive interference of light in terms of path difference.
Constructive interference (bright fringe): path difference = n λ. Destructive interference (dark fringe): path difference = (n + 1/2) λ, where n is an integer.
Give the fringe spacing formula for Young's double-slit experiment.
Fringe spacing (separation between adjacent bright fringes) = λ D/d, where λ is wavelength, D is the slit-to-screen distance, and d is the slit separation.
Define diffraction and give the diffraction grating equation.
Diffraction is the bending and spreading of waves around obstacles or through narrow slits. Grating equation: d sin(theta) = n λ, where d is the grating spacing and n the order of the maximum.
State the magnifying power of a simple microscope (magnifying glass) at near point.
Magnifying power M = 1 + D/f, where D is the least distance of distinct vision (about 25 cm) and f is the focal length of the lens.
Describe a compound microscope and a telescope in terms of their lenses.
A compound microscope uses two convex lenses (objective of short focal length, eyepiece) to magnify small nearby objects. A refracting telescope uses a long-focal-length objective and a short-focal-length eyepiece to view distant objects; its magnification M = f_objective/f_eyepiece.
State Coulomb's law of electrostatics.
The force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them: F = k q1 q2 / r^2, where k = 1/(4 pi epsilon0) ≈ 9 × 10^9 N·m^2/C^2.
Define electric field intensity and electric potential.
Electric field intensity E = F/q (force per unit positive charge, in N/C or V/m), a vector. Electric potential V = W/q (work done per unit charge to bring it from infinity, in volts), a scalar; E = -dV/dr.
Define capacitance and give the capacitance of a parallel-plate capacitor.
Capacitance C = Q/V (charge stored per unit potential difference, in farads). For a parallel-plate capacitor C = epsilon0 epsilon_r A/d, where A is plate area, d the separation, and epsilon_r the relative permittivity of the dielectric.
What this deck covers
The Physics deck follows the AKU MBBS Admission Test Physics syllabus — 7 chapters and 24 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 8.7 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 188 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Physics flashcards FAQ
How many Physics flashcards are in this AKU MBBS Admission Test deck?
61 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these AKU MBBS Admission Test flashcards free?
Yes. The preview here is free to read with no signup, and the full 61-card deck is free inside the Examius app.
What do the Physics cards cover?
They follow the AKU MBBS Admission Test Physics syllabus — 7 chapters and 24 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.