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?
Undergrad Velocity for uniform circular motion
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Undergrad Converting Units: How to Convert 1.6*10^7 N/cm^2 to kg/cm^2
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Undergrad Topics covered in John R Taylor Classical mechanics
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Insights How to Model a Magnet Falling Through a Solenoid
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Undergrad G-force centrifuge mounted on opposite rotating platform
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Undergrad Physics behind making a mango milk shake
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High School Potential energy and lifting an object vertically
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High School Ideal gas formula not working?
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High School The relationship between mass, light and energy
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Undergrad Question about X-ray power emitted by the Coolidge tube
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Undergrad What is the relationship between force and potential in particle interactions?
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High School Algebraic Operations on Energy-Momentum Relationships
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High School What is the analogy for EM waves traveling in vacuum?
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Undergrad Measuring the built-in potential of a pn junction
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Undergrad EM wave propagation: respective phase of E and M field
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Undergrad A gravity conundrum involving a solid cylinder
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Undergrad A Report on the Experimental Results of Inertial Effects
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High School Artificial gravity rotating on two axes
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Undergrad Does high humidity air transfer sound better than dry air?
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Undergrad Does an inductor always create a back EMF?
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Undergrad Does pressure affect the thermal breakdown of water?
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Undergrad Reverse Projector: New Tech for Immersive Video Experience
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High School Letter reflection from beer can
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High School How does the size of pool balls affect the amount of force needed for a shot?
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Undergrad How to account for linear momentum in a collision?
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Undergrad How Does Rotating Polarization Work in Optics Experiments?
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Undergrad Relative Strength of the Magnus effect relative to gravity
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Undergrad Can Self-Running Heat Pumps Revolutionize Home Efficiency?
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Undergrad Are spherical transverse waves exact solutions to Maxwell's equations?
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Undergrad Is E/B = c for spherical EM Wave in Vacuum?
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Undergrad Solving the EM field equations to produce the desired vector field
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High School What are the energy conservation principles at play in a catapult launch?
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High School Calculation of displacement of an object
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High School Do forces of attraction really exist or are they just an illusion?
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Undergrad Newton's second law and pressure wave propagation
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Undergrad Exact electrostatic potential of a pure dipole using multipole expansion
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Undergrad Solving the Block-on-Spring Problem Using Forces
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Undergrad When is a water surface not dispersive?
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High School Can you turn a skyscraper into a magnet?
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High School How is efficiency defined in rocket propulsion?
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Undergrad An interesting question from Veritasium on YouTube
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Undergrad Understanding the critic of this author for conventional S field
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High School Accelerating to a stop in the Milky Way Galaxy
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High School Is this determinable? (Size of this Russian patrol boat)
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Undergrad Energy flux direction in a conducting wire?
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Undergrad Acoustic wave properties and momentum
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High School How to find the Moment of Inertia for a Sphero robot?
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Undergrad Rigid body mechanics and coordinate frames
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High School Hi, I'm learning physics -- Why do things near me not fall toward me?
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High School Calculating the Distance that a Catapult can launch a Projectile
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Undergrad Measuring Spacing with Shortcut Technique: Is Uniformity Achieved?
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Undergrad Impact, momentum, demand and capacity
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Graduate Resonant frequencies of liquid in a cylinder
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Undergrad Calculating Candela Power for LED
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Faraday’s law and voltage generation
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Undergrad Energy of an electron in an electric circuit
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Graduate Brownian Motion (Langevin equation) correlation function
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Graduate A question about charged particle in a magnetic field
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High School What is the relationship between force and distance in planetary motion?
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Undergrad Calculating distance (from magnet) to an arbitrary point in 3D space
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Undergrad Estimating Vertical Wind Speeds: T_a, T_s, & P_a
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Undergrad The meaning and consequences of 'False Pressure'
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Undergrad How Fast Can a Magnet Train Go in a Circular Tunnel?
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High School Is Infrared Light Invisible to Humans Due to Eye Limitations?
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High School How to shoot longer shots in basketball
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Undergrad Shallow Water Wave Equation Simulation: Reverse Shoaling?
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Undergrad Coleman Lecture: Varying E-M Lagrangian - Problem 3.1 Explained
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Graduate An ab initio Hilbert space formulation of Lagrangian mechanics
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High School How is capacitor energy the same as electrostatic potential energy?
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High School Understanding the Concept of Infinity as a Reference in Physics: Explained
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High School Swimming pool in a rotating space station
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Undergrad How to deal with these +- values in an equation?
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High School Centrifugal Force on Rotating 4" tire / wheel @ 100mph
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Undergrad What happens to the buoyant force at the surface of the water?
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Undergrad Compressed gas energy storage formula
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High School Does there exist a metal that is 100% unrustable?
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Undergrad Calculate the internal pressure of a tube based on flow rate
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Undergrad Time derivative of the moment of inertia tensor
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Undergrad Are Newton's Laws just definitions?
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Undergrad Humming Top Acoustics: Unearthing the Mystery
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Undergrad Where to find this uniqueness theorem of electrostatics?
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High School How to calculate torque on a body falling freely through the sky?
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High School Why does the Sun seem so bright?
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Undergrad Uncertainty in an experiment with an image viewed through a big slit
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Undergrad Viscous Drag of Water: Effects & Understanding
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Undergrad Surface tension and water (the smallest hole water will flow through)
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Undergrad Energy emitted by EM sources under constructive interference
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Undergrad Equipartition theorem and Drag
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Undergrad EM waves have no mass but they do have momentum?
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Undergrad Gravity on the Moon vs. on the spinning Earth
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Undergrad Damping in a coupled pendulum system
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Undergrad Sound Frequency & Pipe Wall Thickness
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High School Gravitational Force acting on a massless body
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Undergrad Why doesn't the released mass m2 on pulley have higher acceleration?
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Undergrad Possibility of PCB Oils in old Diffusion Pumps?
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High School What is my apparent weight in water?
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Undergrad Reflectivity of Pure Metals in Vacuum
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High School Propagation speed of movements of a fluid in a pipe
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High School Clarification : S = K ln W and S = K ln omega
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Undergrad Did Ohm, Ampere, and Volta Collaborate on Ohm's Law?
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