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

Undergrad Landau Mechanics Chapter 2 Problem 1: Direction of Potential Energy?

Optics

High School Question about the color of a thin film

Thermodynamics

Graduate Need help with Henry's Law

Electromagnetism

Undergrad The effect of a radio wave on an electron
Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation
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High School Why would sailboat racers prefer a full keel over a fin keel?
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Undergrad DH Mt Bike - Optimizing Drop Landing Ramp Profile
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High School A question about the rotation of points on a wheel
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598
Undergrad Do vocal tract resonances assist a singer's pitch control?
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Undergrad Our Mathematical Universe book -- Since when does light contain voltage?
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Undergrad Capacitor Voltages at t = 0: Zero or Split?
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Undergrad Are the basic axioms of thermodynamics demonstrated experimentally?
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13
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Undergrad The stream from the bottom of the bottle becomes short when the bottle is filled from above
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7
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633
High School Equine Physics -- When a horse gets stuck going up a steep slope
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15
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743
Undergrad Sound waves on the Sun
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6
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392
Undergrad Mach's principle vs two counter-rotating buckets
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24
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High School What fun could you have with a fountain design in artificial gravity?
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High School Why does this not produce water pressure?
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9
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649
High School Deriving the "third" kinematic equation using graphs
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21
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Graduate Is Energy conservation among sectors (EM,GR,QM) a principle?
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High School Propagation of Thunder
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9
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674
Undergrad Water ripples project help please
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6
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876
High School Uniform thermal expansion of metals
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24
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High School In 2g, would jumping be harder?
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8
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Undergrad First law of this universe
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Undergrad How many carriers for phased array?
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High School How can one relate jerk and force?
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Graduate Does a moving particle count as a wave?
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Undergrad Understanding the Coriolis force
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Graduate Heat generation under shock waves
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659
Graduate How is literally EVERYTHING in physics not binary?
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726
Undergrad Why is water pressure increased in a plastic bag in a bucket?
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Undergrad What is the proof of the Σqᵢcosθᵢ = constant theorem for colinear charges?
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Graduate Linearization of the Navier–Stokes equations for real airflow conditions
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High School Rubber band: More or less force to stretch at the beginning?
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8
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Undergrad Exploring the possibilities of storing electricity from lightning
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14
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Undergrad Different result with kinetic energy and momentum when a bullet hits a target
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Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones
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Undergrad Pumping liquid around and draining a part of it, how much is lost?
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High School An apparent contradiction between Fleming's rules
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High School Is it safe to fly in a spinning hollow asteroid?
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Undergrad Velocity of a free particle using Landau's approach
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Undergrad What physics study path would help me answer my own hydraulics question?
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High School Bubbles in Space
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859
Undergrad Potential energy of a system of particles
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High School The world is not enough
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Undergrad Extreme Negative Polarization (peer reviewed Astrophysical Journal)
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Undergrad Why is thermal energy treated differently than other kinds of energy?
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High School Internal energy and gravitation
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Graduate How can a 1 kilometer body (3i/Atlas) flip 180 degrees suddenly?
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Undergrad The missing 3D magnetism theory
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Graduate How to compute the path 3i/Atlas will take when it passes near Jupiter?
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Undergrad Is a half submerged object submerged in its own displaced water?
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Undergrad Problems with Blum's Karate Article
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Undergrad 20 Megapascals of negative pressure... What? Please explain
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High School How much lower would a sheep be expected to jump if on a steep upward slope?
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High School Fan is pushing in the front and sucking from the back
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High School Automobile Does Front Flip
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Undergrad What is the pressure of trapped air inside this tube?
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Graduate Static Electricity foam balls
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High School Which technique has been used? (drowning victim recovery in a lake)
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Undergrad What areas of maths and physics do I need to understand explosion physics?
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Undergrad Confusion about derivation of equation in Gregory
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High School 'splain this hydrostatic paradox in tiny words
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Undergrad Explain Bernoulli at the molecular level?
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Graduate Advice for 100 MHz resonator
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High School What qualities does time have other than linearity, motion, and speed?
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High School Ultrasonic wave and regular sound wave
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High School Use Surface-Volume to approximate gravity for planets and protons
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Undergrad What does the Lattice Boltzmann Equation actually say?
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High School Slow Motion Appearance of Flags: Fluid Dynamics or Perceptual Illusion?
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High School Symbol for temperature on the Fahrenheit scale
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Undergrad Are 1D Longitudinal Waves Reflected at an Open End?
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High School How Did Scientists Develop and Validate the Atomic Model?
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Undergrad Focusing sound waves from the environment
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High School Conservation of energy demo -- An upgrade to the standard version
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High School Why do things burn up in the atmosphere but not in the ocean?
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Undergrad A Mathematica code to plot two functions on the same screen
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Undergrad Need help for ultrasonitc atomizer (transducer)
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Undergrad Standing Waves by Reflection: Losses of the Reflected Wave
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Undergrad Pulse bouncing off ends of a tube, expressed as sum of sine modes?
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High School Power from global loop power cable ?
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Undergrad Bouncing sound pulse in cylinder, driving vibrations in shell
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Undergrad Help me to understand how integrating this function works
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Undergrad Which radiation between infrared and microwave is more penetrating?
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Undergrad Frequency components that remain fixed when singing a scale
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High School What is the speed of "motion"?
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Undergrad Water column object insertion and energy recapture
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Graduate Hamiltonian formulation of classical mechanics as symplectic manifold
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Undergrad Singing Crystal Wineglass -- Does the wine mass determine the pitch?
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Undergrad Why is the Cross Product Used in Mathematics? Understanding its Role and History
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Undergrad Wave motion and a stretched string
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High School Simulate an altitude at 16000-18000 feet with water depth
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Undergrad Calculating Watt Hours for a time interval less than 1 second
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Undergrad How is the mass of the Earth or the Sun measured?
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High School Is this equation at all sensical?
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Undergrad Some questions regarding Acoustic wave reflection
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Undergrad How does pi in physics relate to circular motion and waves?
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High School Tangential Velocity (maybe)
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High School Can Ionic Compounds conduct electricity in a gaseous state?
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Undergrad What happens to X-rays if they do not meet Bragg's law?
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High School Confusion about Wave Motion
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Undergrad Regarding noise propagation
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Undergrad Gravity at Earth's poles vs equator
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