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AP EAMCET / TS EAMCET Physics - Mechanics and Thermal Physics Flashcards
51 question-and-answer cards covering Physics - Mechanics and Thermal Physics as it is examined in AP EAMCET / TS EAMCET. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Physics - Mechanics and Thermal Physics deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
How does acceleration due to gravity vary with height h above Earth's surface?
g_h = g(1 - 2h/R) for h << R, where R is Earth's radius. So g decreases with increasing height.
Give the formula for orbital velocity of a satellite and for escape velocity from Earth.
Orbital velocity v_o = sqrt(GM/r) = sqrt(g R^2/r). Escape velocity v_e = sqrt(2GM/R) = sqrt(2gR) ~ 11.2 km/s for Earth.
State Kepler's three laws of planetary motion.
1st (Law of Orbits): planets move in ellipses with the Sun at one focus. 2nd (Law of Areas): the line from Sun to planet sweeps equal areas in equal times. 3rd (Law of Periods): T^2 is proportional to a^3 (semi-major axis cubed).
Define gravitational potential energy of a two-body system and gravitational potential.
Gravitational PE U = -G*m1*m2/r (taken zero at infinity). Gravitational potential V = -GM/r (PE per unit mass).
Define stress and strain.
Stress = restoring force per unit area (F/A), unit N/m^2. Strain = ratio of change in dimension to original dimension (dimensionless), e.g., longitudinal strain = delta_L/L.
State Hooke's law and define Young's modulus.
Hooke's law: within the elastic limit, stress is proportional to strain. Young's modulus Y = longitudinal stress/longitudinal strain = (F/A)/(delta_L/L).
Differentiate Young's modulus, bulk modulus, and modulus of rigidity.
Young's modulus (Y): tensile/compressive stress over linear strain. Bulk modulus (K): volume stress over volume strain (resistance to compression). Modulus of rigidity (eta): shear stress over shear strain.
What is Poisson's ratio?
Poisson's ratio = lateral strain / longitudinal strain. It is dimensionless, typically between 0 and 0.5 for most materials.
State Pascal's law and define pressure in a fluid.
Pascal's law: pressure applied to an enclosed fluid is transmitted undiminished to all parts and the container walls. Pressure P = Force/Area; in a fluid at depth h, P = P0 + h*rho*g.
State Archimedes' principle.
A body wholly or partially immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced: F_buoyant = V*rho*g.
State the equation of continuity and Bernoulli's theorem for fluid flow.
Continuity: A1*v1 = A2*v2 (mass flow conserved). Bernoulli: P + (1/2)rho*v^2 + rho*g*h = constant along a streamline for an ideal fluid.
Define surface tension and capillary rise.
Surface tension = force per unit length acting along the surface (T = F/L), unit N/m. Capillary rise h = 2T cos(theta)/(r*rho*g), where theta is the contact angle and r is the tube radius.
State Newton's law of viscosity and give Stokes' law for a sphere falling in a fluid.
Viscous force F = -eta*A*(dv/dx), eta = coefficient of viscosity. Stokes' law: F = 6*pi*eta*r*v for a sphere of radius r moving with velocity v.
Define thermal expansion coefficients and give the relation between them.
Linear (alpha), areal (beta), and volume (gamma) expansion coefficients relate as beta = 2*alpha and gamma = 3*alpha (for isotropic solids).
Give the three modes of heat transfer with one distinguishing feature each.
Conduction: heat flow through a medium without bulk movement (solids). Convection: heat transfer by actual movement of fluid. Radiation: heat transfer by electromagnetic waves, requiring no medium.
State the first law of thermodynamics.
Heat supplied to a system equals the increase in internal energy plus work done by the system: dQ = dU + dW = dU + P*dV.
Distinguish isothermal, adiabatic, isobaric, and isochoric processes.
Isothermal: constant temperature (dU = 0). Adiabatic: no heat exchange (dQ = 0). Isobaric: constant pressure. Isochoric: constant volume (dW = 0).
State the second law of thermodynamics (Kelvin-Planck statement) and the efficiency of a Carnot engine.
Kelvin-Planck: no process can convert all absorbed heat completely into work. Carnot efficiency eta = 1 - T_cold/T_hot (temperatures in kelvin).
State the postulates and key result of the kinetic theory of gases for pressure.
Gas molecules are point-like, in constant random motion, with elastic collisions and negligible intermolecular forces. Pressure P = (1/3)(rho)(v_rms^2) = (1/3)(N/V)m(v_rms^2).
State the law of equipartition of energy and give the rms speed of gas molecules.
Each degree of freedom contributes (1/2)kT of energy per molecule. RMS speed v_rms = sqrt(3kT/m) = sqrt(3RT/M).
Differentiate heat and temperature.
Heat is energy transferred between bodies due to a temperature difference (unit: joule). Temperature is the measure of the average kinetic energy of molecules / degree of hotness (unit: kelvin).
Define simple harmonic motion and give the equations for its time period for a spring and a simple pendulum.
SHM: acceleration is proportional and opposite to displacement (a = -omega^2*x). Spring: T = 2*pi*sqrt(m/k). Simple pendulum: T = 2*pi*sqrt(L/g).
Give the speed of a transverse wave on a string and the equation for beat frequency.
Wave speed on a string v = sqrt(T/mu), where T is tension and mu is mass per unit length. Beat frequency = |f1 - f2| (difference of the two source frequencies).
State the Doppler effect formula for the observed frequency when source and observer move.
f' = f*(v +/- v_o)/(v -/+ v_s), where v is sound speed, v_o the observer speed, v_s the source speed; signs are chosen so that approach raises and recession lowers the frequency.
What this deck covers
The Physics - Mechanics and Thermal Physics deck follows the AP EAMCET / TS EAMCET Physics - Mechanics and Thermal Physics syllabus — 5 chapters and 15 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 10.2 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 155 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 - Mechanics and Thermal Physics flashcards FAQ
How many Physics - Mechanics and Thermal Physics flashcards are in this AP EAMCET / TS EAMCET 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 AP EAMCET / TS EAMCET 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 - Mechanics and Thermal Physics cards cover?
They follow the AP EAMCET / TS EAMCET Physics - Mechanics and Thermal Physics syllabus — 5 chapters and 15 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.