Classical Physics Forum

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Join expert classical physics discussion on the principles developed before the rise of relativity and quantum mechanics. Including mechanics, electrodynamics, thermodynamics, optics.

Mechanics

High School Mousetrap Car Energy efficiency

Optics

Undergrad How do I stretch a laser from a beam into a sheet?

Thermodynamics

Undergrad Using the "triple point of water" to produce ice -- How does that work?

Electromagnetism

Undergrad What determines if wave components are independent vs coherent?
High School Fundamental Units and Supplementary Units — What are the differences?
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Undergrad Changing the tone of a wind chime using slits or cuts
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Undergrad Coefficients in expansions of a vector potential
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High School Does Gaining Weight Affect Mass?
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Undergrad Can ground albedo near a highway refract noise upward?
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Undergrad Projector location in Cinema Theater
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High School Question about electromagnetic waves -- Penetration vs. Frequency
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Undergrad Open channel flow: derive function for energy slope on friction?
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Graduate Gradient of higher rank tensor
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Undergrad Maximizing Compound Bow Power: The Role of Longer Limbs Explained
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High School Could the Pistol Shrimp's Energy Event Hold the Key to Cold Fusion?
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High School Is Gravity Impacting Projectile Range Beyond Air Resistance Effects?
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Undergrad How did Charles obtain his law when absolute temperature wasn't define
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High School Traveling outside of the Earth's atmosphere
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High School "Prove" that LPG burns with a blue flame ....
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High School Extrapolation of relationship of temperature and volume for gas
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Undergrad Uncertainty in measurements of the thickness of a pile of pellets
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Graduate Lagrange-D’Alembert Principle and random ODE
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Undergrad Canonical transformation vs symplectomorphism
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Undergrad Overlap Integrals: Understand & Learn from a Source
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Undergrad Principle of Stationary Action - Intuition
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High School Is the Definition of a Standing Wave Accurate?
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Undergrad Conversion factors derivation.
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Graduate Extracting Color from a Spectral Date
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High School What Happens When You Connect Different Voltage Batteries in Parallel?
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Undergrad Why does Webb orbit L2, is it because of the Moon?
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Undergrad How does the magnetic component of an EM wave affect surroundings?
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Undergrad Inductive heating and eddy currents
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High School Stability of Droplet Climbing on a Needle with Varying Contact Angle
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Calculating the mechanical index of applied ultrasound
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Undergrad Calculating an increasing angle in Spherical Coordinates for a curve
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Undergrad Can Graphite Sheets Replace Carbon-Loaded Teflon in Millimeter Wave Dosimeters?
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High School What gives satellites their tangential velocity?
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Graduate Betz Law & Submerged Turbines: Is it Applicable?
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Undergrad Olympiad Problem -- Revisiting the problem with 3 blocks and a pulley
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Undergrad Block sliding down an incline plane
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High School Simple Counter-balance/Counter-weight Calculation Problem
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Undergrad What Determines the Order of Rotations for a Gyro?
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Undergrad Defining Characteristic Time and Distance in an Acceleration Function
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Undergrad Refractive index vs Temperature
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Undergrad Generating eddy currents, what is the best way?
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High School Why is a simple pendulum not a perfect simple harmonic oscillator?
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Undergrad Trying to calculate the net force/torque of a rock climber on a wall
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Undergrad Problem with understanding angular momentum
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Undergrad Geometric Interpretation of Turbulence
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Undergrad Why does an ideal voltmeter have infinite resistance?
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Undergrad Spin, pseudo-spin or whatelse? (cavity)Polariton polarimetry question
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Undergrad General physics question -- How can massless photons have momentum?
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Undergrad The partial time derivative of Hamiltonian vs Lagrangian
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Undergrad Information content in electromagnetic or gravitational waves
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High School Rebound Height vs Air Pressure: A Puzzling Relationship
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High School Magnetic pendulum and electric energy....
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Undergrad Explain how soil is not frozen after 3 weeks of below freezing weather
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High School How does heat conductivity work? Al -> Cu
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Undergrad Second Tonga shockwave - why a drop in the pressure?
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Undergrad How Does Table Rotation Direction Affect Gyro Stability?
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High School A doubt regarding vectors, scalars and their role in physics
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High School Hydrostatic pressure vs. gravity
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Undergrad Lagrangian with generalized positions
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Lifting power at the bottom of the ocean?
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High School Problems I Have With Electrostatics and Pith Ball Experiments
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Undergrad Webb Launch Mechanics: Tangential Speed Benefits?
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Undergrad Standard designation for generalization of Euler-Lagrange?
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Graduate Reflection Instant? Atomic Level Causes Explored
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High School Forces on a passenger in a car?
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Undergrad Would Icarus' wings fly in Earth's atmosphere and moon gravity?
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High School Work-Kinetic and Work-Potential theorems relation
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Undergrad Action in Lagrangian Mechanics
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High School Basic questions regarding theory of electrical capacitance
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Undergrad Gauss' law and an object with nonuniform charge distribution
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Undergrad Angular Velocity: Vector or Not?
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Graduate Is fluid mechanics (aerodynamics) still being discovered?
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Undergrad Equivalent formula for a Sound wave in a medium like an EM wave
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Undergrad Resonant Frequency Formula for a given object
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High School Unleashing the Power of Nuclear Borehole Cannon: Shooting Projectiles into Space
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Graduate Does gravity affect Brownian Motion?
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Undergrad Angular Movement and Spiralling Motion
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High School What type of wave is described by y'' = -k*y^2
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High School Does a DC Cell or Battery Actually Supply Electrons?
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Undergrad Mechanical power generated by a force F
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Undergrad Momentum conservation for EM-Field/matter interaction
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High School White noise frequencies and Audio Speakers
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Graduate Energy problem of light interference
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Undergrad Dimensions of our physical world
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High School Measuring Light's Brightness & Power Flux Relative to Observer's Speed
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Undergrad Can configuration space be observer independent?
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Undergrad Help Designing a Resonance Box for Tuning Forks
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Undergrad How Long Does It Take to Melt a 12.5 kg Gold Bar at 3000°C?
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Undergrad Can I Calculate the Current and Tension Produced by a Dynamo?
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High School Thought experiment (debate with friend)
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High School Waste-to-energy question (not homework)
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Undergrad How to define infinite extent elements in COMSOL?
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Undergrad What Specifications Are Needed for a Plasma Device Power Supply?
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High School Does gas expanding in a container cause displacement of the container?
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Undergrad Apparent Initial Acceleration due to Precession of Wheel Gyroscope?
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Undergrad Is the classical ideal rocket thrust equation correct?
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Undergrad Energy Transfer Between Inertia Wheels
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Undergrad Poynting Vector in a Wire: Understanding the Flow of Energy
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High School What is the difference between N = Q/nF and m = Z*I*t in electrolysis?
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Undergrad How Do You Calculate the Expulsion Force in a Bellow Simulation?
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