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🇵🇰 AKU BScN Admission Test · flashcards
AKU BScN Admission Test Physics Flashcards
51 question-and-answer cards covering Physics as it is examined in AKU BScN 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 centripetal acceleration and give its formula.
Centripetal acceleration is the acceleration directed toward the centre of a circular path. a = v^2 / r = r.omega^2.
Write the formula for centripetal force and state its direction.
Centripetal force F = mv^2 / r = m.r.omega^2, directed toward the centre of the circle.
Define angular velocity and give its relationship to linear (tangential) velocity.
Angular velocity omega is the rate of change of angular displacement (rad/s). It relates to linear velocity by v = r.omega, where r is the radius.
State Newton's law of universal gravitation with its formula.
Every two masses attract with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them: F = G m1 m2 / r^2, where G = 6.67 x 10^-11 N.m^2/kg^2.
How does the acceleration due to gravity g relate to the Earth's mass and radius?
g = G M / R^2, where M is the Earth's mass and R its radius. It decreases with altitude and with depth below the surface.
Define escape velocity and give its formula for Earth.
Escape velocity is the minimum speed needed to escape a planet's gravity without further propulsion. v_e = sqrt(2 G M / R) = sqrt(2 g R), about 11.2 km/s for Earth.
What conditions define simple harmonic motion (SHM)?
SHM occurs when the restoring force (or acceleration) is directly proportional to displacement from the equilibrium position and is always directed toward that position: a = -omega^2 x.
Give the formulas for the time period of a simple pendulum and a mass-spring system.
Simple pendulum: T = 2 pi sqrt(L/g). Mass-spring: T = 2 pi sqrt(m/k).
In SHM, where are velocity and acceleration maximum and minimum?
Velocity is maximum at the equilibrium (mean) position and zero at the extremes. Acceleration is maximum at the extreme positions and zero at the mean position.
Define wavelength, frequency, and the wave equation relating them to speed.
Wavelength (lambda) is the distance between successive identical points; frequency (f) is the number of waves per second. Wave speed v = f.lambda.
Distinguish between transverse and longitudinal waves, with an example of each.
In a transverse wave particles vibrate perpendicular to wave travel (e.g. light, waves on a string). In a longitudinal wave particles vibrate parallel to wave travel, forming compressions and rarefactions (e.g. sound).
What is the difference between a node and an antinode in a standing wave?
A node is a point of zero (minimum) displacement; an antinode is a point of maximum displacement. Adjacent nodes are separated by half a wavelength.
Why can sound travel through solids, liquids and gases but not through a vacuum?
Sound is a mechanical (longitudinal) wave requiring a material medium with particles to transmit vibrations. A vacuum has no particles, so sound cannot propagate through it.
What is the approximate speed of sound in air, and how does it depend on the medium and temperature?
About 340 m/s in air at room temperature. Sound travels fastest in solids, slower in liquids, slowest in gases; in air its speed increases with temperature.
Define the Doppler effect.
The Doppler effect is the apparent change in observed frequency (pitch) of a wave due to relative motion between the source and the observer; frequency increases as they approach and decreases as they recede.
Distinguish between heat and temperature.
Temperature is a measure of the average kinetic energy of particles (degree of hotness, measured in K or C). Heat is the energy transferred between bodies due to a temperature difference (measured in joules).
Name the three modes of heat transfer and briefly describe each.
Conduction: transfer through a solid by particle collisions without bulk movement. Convection: transfer in fluids by the actual movement of heated material. Radiation: transfer by electromagnetic waves, requiring no medium.
Convert 27 degrees Celsius to kelvin and give the conversion formula.
K = C + 273. So 27 C = 27 + 273 = 300 K.
State the first law of thermodynamics with its equation.
Energy is conserved: the heat added to a system equals the increase in internal energy plus the work done by the system. Delta Q = Delta U + W.
State the second law of thermodynamics (one common statement).
Heat cannot spontaneously flow from a colder body to a hotter body; equivalently, the entropy (disorder) of an isolated system tends to increase, and no heat engine can be 100% efficient.
State Boyle's law and Charles's law for an ideal gas.
Boyle's law: at constant temperature, P is inversely proportional to V (PV = constant). Charles's law: at constant pressure, V is directly proportional to absolute temperature T (V/T = constant).
Write the ideal gas equation and identify each symbol.
PV = nRT, where P = pressure, V = volume, n = number of moles, R = universal gas constant (8.31 J/mol.K), T = absolute temperature in kelvin.
State Coulomb's law of electrostatic force with its formula.
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 = 9 x 10^9 N.m^2/C^2.
State Ohm's law and give the formula relating voltage, current and resistance.
At constant temperature, the current through a conductor is directly proportional to the potential difference across it: V = I R.
What this deck covers
The Physics deck follows the AKU BScN Admission Test Physics syllabus — 8 chapters and 21 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 6.4 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 158 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 BScN Admission Test deck?
51 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these AKU BScN Admission Test flashcards free?
Yes. The preview here is free to read with no signup, and the full 51-card deck is free inside the Examius app.
What do the Physics cards cover?
They follow the AKU BScN Admission Test Physics syllabus — 8 chapters and 21 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.