.: Acoustics - Hard to Categorize

Acoustics

• End Effects in Acoustic Pipes
• Harmonics and Overtones
• Plucking the Guitar

Aerodynamics

• Objects Falling Through Air
• Sailing to Windward
• Wind Hitting a Building

Ballistics

• Best Javelin Throw
• Bouncing Ball
• Dirt bike Jump
• Height of the ball
• Kicked Ball
• Maximum Range With Air Resistance
• Motion of a Thrown Ball
• Motion up an Inclined Plane
• Projectile Automobile
• Projectile Range Comparison
• Projectile With Air Resistance
• Rocks and Bullets
• Throw and Catch
• Two Ball Meeting

Chaos

• Different Attractors for Even/OddvIterations
• Fractal Data Compression

Collisions

• Average Force in a Collision
• Baggage Handling Collision
• Bicycle Speed Bump
• Bullet, Block and Spring
• Collisions Damage
• Collision on a Rough Surface
• Collisions with Friction and Spin
• Forces in a Collision
• Elastic Collision Between Different Masses
• Gas Molecule Collisions
• Glancing Collision in Two Dimensions
• Handling Spin in Billiard Collisions
• Impulse Forces
• Impulse Force Duration
• Inelastic Human Cannonball
• Injury in a Collision
• Magnitude a resisting force
• Missile Hazard in a Collision
• Pool-Hall Physics
• Two cars, No Bounce
• Two Dimensional Collisions
• Why Objects Do Not Share Space

Conservation of Energy

• Acceleration Proportional to Displacement
• Bicycle Normal Force in Valley
• Cable Car Energy Conservation
• Distance to Tow Auto to Reach Speed
• Escape Velocity
• Inelastic Collision Energy Loss
• Kinetic Energy and Observer Velocity
• Mechanical Energy Conservation
• Projectile Energy Conservation
• Ski Jumper Speed and Distance
• Swing Set Support Forces
• Two Blocks and a Spring
• Roller Coaster Terminal Height
• Velocity of Fountain Water
• Vertical Circular Motion
• Vertical Jump Calculations
• Work in Pushing Against Spring and Gravity

Conservation of Linear Momentum

• Conservation of Momentum in an Explosion
• Gun Recoil
• Man Jumping from a Trolley
• Momentum Conservation Boundaries
• Pendulum with Changing Mass
• Rocket Science

Electricity and Magnetism

• Airport Security Sensors
• Helmholtz Coil Geometry
• RLC Resonance

Electrodynamics

• Cathode Ray Tube and Thermionic Emmision
• Cathode Ray Tube Phosphors
• Cathode Ray Tube Voltages
• Electron Charge to Mass Ratio
• Electron Energy Levels
• Gas Discharge Tube Experiment
• Resistance Measurement and Heat
• The Cathode Ray Tube
• Why is Light Visible
• Why is the Sky Blue
• X-Ray Production

Electrostatics

• Charge Distribution on Connected Spheres
• Charge Distribution on Pear Shaped Conductor
• Charged Particle Accelerated in an Electric Field
• Dielectric Effect in Capacitors
• Electric Field Lines
• Electrolytic Capacitors
• Field at a Charged Surface
• Field and Potential from Square Array of Charges
• Healing a Broken Bat
• Linear Superposition
• Meaning of Permittivity
• Molecular Bonds
• Objects in Contact
• Ratio of Electric to Gravitational Forces
• Shielding Electric Fields
• Voltage Limit on an Ionization Chamber

Friction

• Accelerating Against Friction with Constant Force
• Air Resistance for Sliding Object
• Center of Mass Experiment
• Dragging a Crate
• Inclined Tube Experiment(1)
• Inclined Tube Experiment(2)
• Kinetic Friction
• Rolling without Slipping
• Time to Stop Sliding
• Varying Force on Sliding Crate

Gravity

• Achieving Circular Orbit
• Gravitational Force Lines
• Gravitational Test Mass
• Gravity, Push or Pull
• Gravity and Electro-Magmetism
• Gravity on Mars
• Gravity on Mars (Better)
• Keppler's Third Law
• Near Earth Gravitation
• Newton's Second Law and Gravity
• Satellite Speed at Extremes
• Scale Reading in Elevator
• Source of Gravitational Attraction
• Synchronous Orbit Parameters
• Tides in Lakes
• Weight Changes With Position On/In Earth
• What Causes Ocean Tides

Hard to Categorize

• Block and Tackle Mechanical Advantage
• Bed of Nails
• Clothes Dryer Motion
• Cranial Contents
• Exercise Energy
• Energy Sources
• Forces in Flexing the Elbow
• Hearing Aid in the Microwave
• Life After Death Question
• Loss of Material From Earth
• Particle Accelerators
• Physics is not Fair
• Predicting Ocean Surf
• Screw Thread Mechanical Advantage
• Torque Steer
• Titanium, Silver and gold
• What Do My Notes Mean?
• Vector Division Question
• Wierd Gravity and Other Ideas

.: Hydrodynamics - Weather

Hydrodynamics

• Paint Sprayer Operation

Hydrostatics

• Displacement of Anchored Boat
• Hydrostatic Pressure
• Ship Roll Stability

Kinematics

• Knowledge and Understanding of Kinematics

Newton's First Law

• Free-Fall Pendulum
• Jumping to Travel
• Newton's Laws and Skiing

Newton's Second Law

• Acceleration of Masses and Tension in the String
• Atwood Machine (Weights Hung on Pulley)
• Crumple Zone and Air Bags
• Egg and Sheet Collision
• Force, Given Parametric Polar Coordinates
• Laws of Motion in Soccer
• Lifting a Fuel Assembly
• Roller Coaster Physics
• Sliding-Falling Blocks
• The Suitcase Chute

Newton's Third Law

• Air resistance and the Third Law
• Experiment for Third Law
• Forces on a Rocket
• Throwing Stuff in Space

Noninertial Reference Frames

• Water Drain Rotation

Nonlinear Dynamics

• Stick-Slip of Block on a Moving Belt
• Van der Pol Oscillator
• Pendulum With Small Springs

Nuclear Engineering

• Control Rod Action
• Fission With Slow Neutrons
• Fuel Reprocessing
• Why Pressurized Water?

Optics

• Angular and Linear Magnification
• Fresnel Lens Limitation
• Fish Eye View
• Real Image of Virtual Object

Power

• Distance as a Function of Speed at a Constant Power
• Automobile Engine Input Power
• Biking Pedal Power
• What is Horsepower?

Quantum Mechanics

• Basis Sets
• Learning Quantum Physics

Rotation

• Angular Momentum Intuition
• Banked Curved Forces
• Bearing Reaction
• Centripetal and Centrifugal Definition
• Centrifugal Force and Gravity
• Circular Motion and Perpendicular Acceleration
• Circular Motion Defined
• Circling Boat
• Conservation of Angular Momentum With Decreasing Radius
• Ferris Wheel Physics
• Force Twirling a Baton
• G Force vs Speed
• Gravity on a Rotating Body
• Linear Velocity from Compound Rotating Links
• Long Discussion on Torque
• Moment of Inertia for a Spherical Shell
• Motion in Compound Constraint
• Motor Driven Disk
• Pendulum Cord Tension
• Precession of Euler's Disk
• Pulley Revolutions
• Planetary Spin and Keppler's Laws
• Relativistic Rotational Speed?
• Rotary to Linear Motion
• Rotating Particle With Time Dependent Torque
• Rolling on an Arbitrary Surface
• Spin Orientation Issues
• Spinning Footballs
• Torque and Work
• Torque Questions
• Wheel Displacement in Gaining Velocity

Springs

• Hooke's Law
• Measuring Automobile Spring Constant
• mechanical waves in simple harmonic motion
• Spring and Block Mechanical Energy
• Spring Centered Collar on a Smooth Rod
• Spring Constant

Thermodynamics and Heat Transfer

• Heat Transfer Examples
• Heat Transfer and Thermal Radiation

Vector Analysis

• Angle Between 3d Vectors
• Boat Spreading
• Scalar(dot) Product
• Tension on Lifting Chain
• Uses for Vectors
• Vector Division
• Velocity and Acceleration Components

Vibration

• Amplitude at Resonance
• Inertia and Elastic Factors
• Variations in Tidal Range
• Vibration Monitoring Quantities
• Vibration Types
• Wind Instrument Resonance

Waves

• Beat and Displacement Frequency
• Diffraction Grating - Find Wavelength
• Diffraction Makes Fuzzy Shadows
• Energy Considerations in Waves
• How (Water) Waves Form
• Kundt's Tube Experiment
• Ocean Swells Atlantic vs. Pacific
• Plane Wave Equation
• Radio Waves
• Radio Wave Propagation Paths
• Single Slit Diffraction - Find Wavelength
• Superposition of Radio Waves
• Speed of Sound vs. Temperature
• Superposition of Sound Waves
• The Electromagnetic Spectrum
• Ultrasonic Waves for Fathometer
• Water Wave Speed
• Waves in a Struck Rod
• Wave Speed in Different Media
• Young's Double Slit Experiment - Find Wavelength
• Young's Double Slit Spacing

Weather

• Colder On The Mountain
• Hurricane Eye Calm
• Raindrop Size and Speed
• Temperature Drop After Shortest Day
• Thunder and Lightning