College Physics
Study College Physics with study guides, quizzes, and flashcards covering Newton's laws, energy, and electromagnetism.
Topics
Acceleration
Master the mechanics of acceleration — from the core definition a = Δv / Δt to average vs. instantaneous acceleration, uniform motion kinematics, and free fall under gravity. Clarify common misconceptions like deceleration and direction-based velocity changes. Ideal for students working through motion problems that require solving for displacement, time, or final velocity.
Angular Momentum
Master the rotational analog of linear momentum by working through the core equation L = Iω, the role of net external torque, and the law of conservation of angular momentum. From a figure skater pulling in their arms to collapsing stellar cores and planetary orbits, this pack connects key formulas and real-world systems to help you confidently tackle college physics problems.
Bernoulli’s Equation
Unpack the physics behind fluid flow by working through Bernoulli's equation — P + ½ρv² + ρgh = constant — and understanding what each term reveals about pressure, kinetic energy, and gravitational potential energy per unit volume. This pack covers the continuity equation, the conditions for valid application, and real-world cases including Venturi meters, airfoil lift, and Torricelli's theorem.
Buoyancy and Archimedes’ Principle
Unpack the physics of floating and sinking with this study pack covering Archimedes' Principle, buoyant force calculations using F_b = ρ_fluid × V_displaced × g, and the role of fluid displacement in static equilibrium. Examine how apparent weight, average density, and pressure differences determine whether an object floats, sinks, or hovers — everything you need to confidently solve buoyancy problems in college physics.
Centripetal Force
Master the mechanics of circular motion by working through centripetal force, centripetal acceleration, and the governing equation F_c = mv²/r. This pack clarifies how real forces like friction, tension, and gravity each play the centripetal role depending on context, and tackles the fictitious centrifugal force head-on — giving you the conceptual grounding needed to analyze any rotating system confidently.
Conservation of Energy
Master the law of conservation of energy by working through the relationship between kinetic energy (KE = ½mv²) and gravitational potential energy (PE = mgh) and how they continuously convert into each other. This pack covers mechanical energy in isolated systems, the impact of non-conservative forces like friction on energy transfer, and how to solve for unknown velocities and heights using energy analysis alone.
Conservation of Momentum
Master the core principles behind conservation of momentum, from defining p = mv as a vector quantity to applying the impulse-momentum theorem (J = FΔt = Δp). This pack covers Newton's third law as the foundation of momentum conservation and walks through elastic, inelastic, and perfectly inelastic collisions using the two-body equation m₁v₁ᵢ + m₂v₂ᵢ = m₁v₁f + m₂v₂f.
Constant-Acceleration Motion Equations
Master the four kinematic equations used to analyze one-dimensional constant-acceleration motion, including v = v₀ + at, Δx = v₀t + ½at², and v² = v₀² + 2aΔx. Learn how to identify which equation applies based on your known and unknown variables — v₀, v, a, Δx, and t — and apply these relationships to free-fall problems using g ≈ 9.8 m/s².
Coulomb’s Law
Master the mathematics and physical reasoning behind electrostatic interactions with this study pack on Coulomb's Law. Work through the force equation F = k|q₁q₂|/r², explore how attraction and repulsion depend on charge signs, and understand the inverse-square relationship that governs distance effects. Superposition, point charge assumptions, and electric field connections are all covered.
Doppler Effect and Sonic Booms
Unpack the physics behind shifting frequencies and supersonic shock waves with this study pack covering the Doppler effect, the Doppler equation, and how relative motion between source and observer raises or lowers perceived pitch. Explore how wavefront compression leads to sonic booms, and master the Mach number and Mach cone half-angle calculations that define supersonic flight.
Electric Current
Trace the flow of charge from first principles through the full framework of electric current, covering amperes, conventional versus electron flow, and the electric fields that drive current through conductors. Master Ohm's Law, resistance relationships, and series versus parallel circuit behavior, then apply power equations — P = IV, I²R, and V²/R — to solve real circuit problems with confidence.
Electric Fields
Master the principles behind electric fields, from defining field strength as E = F/q to applying Coulomb's law for point charges and using superposition to combine multiple field contributions. Examine how field lines reveal charge sign and relative strength, and explore conductor behavior in electrostatic equilibrium. This pack covers exactly what college physics students need for electric field problems.
Electric Potential Energy and Potential Difference
Unpack the relationship between electric potential energy, voltage, and charge movement — from the work-energy formula W = qΔV to equipotential surfaces and the electron-volt unit. This pack covers how potential difference drives charges through fields and circuits, connecting gravitational analogies to real electric behavior. Ideal for students building toward circuit analysis or atomic physics applications.
Entropy and the Second Law of Thermodynamics
Unpack the principles governing entropy, spontaneous processes, and the limits of energy conversion in this college physics study pack. Explore how the Second Law of Thermodynamics governs heat flow, why irreversible processes like friction and free expansion increase entropy, and how Carnot efficiency — defined by hot and cold reservoir temperatures — sets the ultimate ceiling for any real heat engine.
Faraday’s Law and Lenz’s Law
Master the principles behind electromagnetic induction by working through Faraday's Law, magnetic flux calculations, and the mechanics of EMF generation. This pack covers how changing field strength, loop area, or orientation induces current, how N-turn coils amplify EMF, and how Lenz's Law determines current direction through opposition to flux change — all grounded in conservation of energy.
First Law of Thermodynamics
Master the First Law of Thermodynamics by working through its core equation, ΔU = Q − W, and understanding how internal energy, heat, and work interact. This pack covers thermodynamic sign conventions, special processes like isothermal and adiabatic, and why perpetual motion machines violate energy conservation — giving you the conceptual and problem-solving foundation college physics demands.
Forces and Newton’s First Law
Master the foundational concepts behind Newton's First Law, including force as a vector quantity, inertia, mass, and equilibrium. This pack breaks down how net force determines whether an object's velocity changes, and clarifies the difference between inertial and non-inertial reference frames — giving you the conceptual grounding needed before tackling more complex force problems.
Free Fall and Falling Objects
Master the physics of objects in free fall by working through gravitational acceleration, vertical kinematics, and the role of g = 9.80 m/s². This pack covers upward-thrown objects, peak-velocity behavior, and the three core equations linking displacement, velocity, and time — plus why mass never affects free-fall acceleration in an idealized, air-resistance-free model.
Friction
Break down the forces that govern motion at every surface interface — from the maximum threshold of static friction that keeps an object at rest to the constant drag of kinetic friction on a sliding object. Master the coefficients of friction, why μk always falls below μs, and how material properties — not contact area or speed — determine both values.
Heat and Thermal Energy
Master the core principles behind heat and thermal energy, from conduction, convection, and radiation to specific heat capacity and latent heat during phase changes. This pack clarifies the critical distinction between heat, thermal energy, and temperature, and walks you through the first law of thermodynamics and thermal equilibrium — everything you need to confidently tackle college-level heat transfer problems.
Ideal Gas Law
Master the ideal gas law by working through PV = nRT and the three laws it unifies — Boyle's, Charles's, and Avogadro's. This pack covers the universal gas constant R, Kelvin temperature requirements, Avogadro's number, Boltzmann's constant, and the kinetic molecular theory connecting molecular motion to macroscopic pressure — everything you need for college-level gas behavior problems.
Impulse
Unpack the relationship between force, time, and momentum as you work through impulse fundamentals, including J = FΔt, the Impulse-Momentum Theorem, and force-versus-time graphs. Explore how extending contact time reduces peak force in real-world safety devices like airbags and crumple zones. This pack covers everything from vector momentum (p = mv) to SI units, giving you a complete foundation for college physics exams.
Kinetic Energy and the Work-Energy Theorem
Master the relationship between motion and energy by working through the core principles of kinetic energy (KE = ½mv²) and the Work-Energy Theorem (W_net = ΔKE). This pack covers how force direction relative to displacement determines work, why doubling speed quadruples kinetic energy, and how multiple forces combine to produce a net change in an object's motion.
Linear Momentum and Force
Master the relationship between force and motion by working through linear momentum, impulse, and conservation laws. This pack covers p = mv as a vector quantity, Newton's Second Law restated as F_net = Δp/Δt, and the impulse-momentum theorem — showing how varying force and time can produce identical momentum changes. Ideal for students tackling collisions, system analysis, and momentum transfer.
Magnetic Fields and Field Lines
Trace the invisible architecture of magnetic fields, from the vector properties of field strength and direction to the closed-loop behavior of field lines around north and south poles. Compare magnetic and electric field lines, examine the significance of the tesla as the SI unit, and apply the right-hand rule to predict how moving charges experience forces perpendicular to both velocity and field orientation.
Mechanical Waves
Trace the behavior of mechanical waves from the fundamental relationship v = fλ through transverse, longitudinal, and surface wave types, all the way to superposition, interference, and standing wave formation. This pack clarifies how wave speed depends on a medium's elasticity and density, and why nodes and antinodes emerge at resonant frequencies — covering exactly what college physics exams test on this topic.
Newton’s Second Law and Systems
Break down Newton's Second Law and the physics of systems, covering F_net = ma, the relationship between mass, force, and acceleration, and why only external forces drive a system's motion. Practice interpreting free body diagrams, calculating net force as a vector sum, and distinguishing mass from weight — everything you need to confidently analyze forces at the college level.
Newton’s Third Law and Force Pairs
Unpack the mechanics of Newton's Third Law by examining how action-reaction force pairs work across two separate objects — and why they never cancel. This pack clarifies common misconceptions, distinguishes net force from paired forces, and connects F = ma to real-world examples like rocket propulsion, swimmers, and walking. Ideal for students who need to master force pair logic before an exam.
Normal Force, Tension, and Free-Body Diagrams
Break down the mechanics of normal force, tension, and free-body diagrams with this college physics study pack. Master why normal force isn't always equal to weight, how tension stays constant through a massless rope, and how to apply Newton's Second Law (ΣF = ma) along each axis to solve for unknown forces and accelerations across flat, inclined, and multi-force scenarios.
Ohm’s Law and Simple Circuits
Master the core relationships that govern electric circuits, from applying I = V/R to ohmic materials to calculating total resistance in series and parallel configurations. This pack covers resistivity, the reciprocal formula for parallel branches, all three forms of the power equation, and why non-ohmic devices like diodes fall outside Ohm's Law — everything you need to tackle College Physics circuit problems confidently.
Photoelectric Effect
Unpack Einstein's 1905 explanation of the photoelectric effect, from the photon energy equation E = hf to the role of a metal's work function in determining whether electrons are ejected. Explore how stopping potential measures maximum kinetic energy, why intensity affects photocurrent but not electron energy, and how this phenomenon established the particle nature of light and launched quantum mechanics.
Power
Master the physics of power, work, and energy with this study pack covering core equations like P = W/t, P = Fv, and the work-energy theorem. Review unit conversions between watts, kilowatts, and horsepower, plus gravitational and elastic potential energy. Ideal for students tackling problems involving force, velocity, displacement, and conservation of mechanical energy.
Pressure in Fluids
Unpack the core principles governing how fluids exert and transmit pressure, from the foundational P = F/A relationship and Pascal's Principle to depth-dependent pressure, buoyancy via Archimedes' Principle, and Bernoulli's equation. This pack covers absolute vs. gauge pressure, hydraulic systems, and atmospheric pressure variation — giving you the conceptual and quantitative grounding needed for college physics exams.
Projectile Motion
Break down the two-dimensional motion of launched objects by separating horizontal and vertical components into independent kinematic equations. Master how constant horizontal velocity and gravitational acceleration (9.8 m/s²) combine to determine time of flight, range, and trajectory, including how launch angle θ affects initial velocity components and why 45° produces maximum range.
Radiation
Unpack the physics of radiation from electromagnetic heat transfer to nuclear decay, covering the Stefan-Boltzmann Law, emissivity, blackbody radiation, and net radiative heat exchange. Examine how alpha, beta, and gamma emissions differ in penetrating power and origin. Ideal if you need to master P = σεAT⁴ and understand radioactive decay for your college physics exam.
Rotational Dynamics and Moment of Inertia
Master the rotational analogs of Newton's laws by working through torque, angular acceleration, and the critical role of mass distribution in determining moment of inertia. This pack covers τ_net = Iα, lever arm geometry, solid disk versus hoop comparisons, and the parallel axis theorem — giving you the tools to confidently solve rotational dynamics problems on exams.
Rotational Equilibrium and Torque
Master the mechanics of rotational equilibrium by working through torque calculations, lever arm geometry, and the two conditions for complete mechanical equilibrium. This pack covers net torque balancing, strategic pivot point selection to simplify unknown forces, and center of gravity concepts that determine object stability — everything you need to confidently solve rotational equilibrium problems in college physics.
Simple Harmonic Motion
Master the mechanics of oscillation by working through the core principles of simple harmonic motion, from Hooke's Law (F = −kx) to sinusoidal position, velocity, and acceleration functions. This pack covers period formulas for spring-mass systems and simple pendulums, the energy exchange between kinetic and potential forms, and why amplitude never affects period or frequency — exactly what you need for SHM exam questions.
Sound Waves
Unpack the physics of sound waves, from compressions and rarefactions to the Doppler effect and resonance. This pack covers wave speed across media, frequency and pitch, amplitude and decibel scale, and intensity relationships — including the inverse square law. Ideal for students working through audible range, ultrasound, and the mechanics behind how sound travels and behaves.
Speed and Velocity
Break down the key distinctions between speed and velocity, from scalar versus vector quantities to the difference between distance and displacement. This pack covers average and instantaneous calculations, explains why a round trip yields zero displacement, and clarifies how direction alone can change velocity — giving you the conceptual foundation college physics problems depend on.
Temperature and Thermal Equilibrium
Unpack the core principles behind temperature and thermal equilibrium, from the Zeroth Law of Thermodynamics to the distinction between heat transfer and temperature as a state property. Master all three temperature scales — Fahrenheit, Celsius, and Kelvin — and understand why absolute zero anchors thermodynamic calculations. Thermal expansion and average kinetic energy are also covered in full.
The Wave Nature of Matter Causes Quantization
Unpack the wave nature of matter and its direct role in atomic quantization, from de Broglie's landmark 1924 wavelength equation (λ = h/mv) to the standing wave condition that explains why only discrete electron orbits are stable. See how 2πr = nλ naturally reproduces Bohr's quantization rule and how electron diffraction experiments confirm these wave properties in practice.
Torque on a Current Loop Motors and Meters
Master the physics behind rotating current loops by working through torque equations, magnetic dipole moments, and the τ = NIAB sin θ relationship. This pack covers how DC motors use commutators to sustain rotation and how galvanometers are modified into voltmeters and ammeters using series and shunt resistors — everything you need for motors and meters.
Universal Gravitation
Master Newton's Law of Universal Gravitation with this pack covering the inverse-square force equation F = G(m₁m₂)/r², the universal gravitational constant, and how surface gravity is derived from first principles. Explore how the same framework unifies falling objects and orbital motion, and work through key relationships like gravitational field strength and the effect of distance on force.
Vectors, Scalars, and Coordinate Systems
Break down the essential differences between scalars and vectors, and learn how coordinate systems provide the reference frames needed to work with them mathematically. This pack covers key quantities like displacement, velocity, and force, plus the trigonometric methods used to decompose vectors into x- and y-components, perform vector addition, and calculate resultant magnitudes and directions using the Pythagorean theorem and inverse tangent.
Work and Mechanical Energy
Master the core principles of work and mechanical energy, from calculating W = Fd cosθ and applying the work-energy theorem to understanding kinetic and gravitational potential energy. Explore how conservation of mechanical energy governs systems without friction, how non-conservative forces like friction drain mechanical energy, and how power quantifies the rate of energy transfer using P = Fv.