Prep for physics entrance exams the right way. Review summaries, watch animations, and take unlimited practice exams. This animation demonstrates the transmission of sound.
Heat: Expansion Of Solid
Types Of Thermometers
Working Of Voltaic Cell
Archimedes Principle
How To Use Spherometer
Faraday Cage
The Wimshurst Machine
Physics Demo - Strobes
Magnetic Deflection
Magnetic Motors
Conducting Glass
Science Experiments
Black Fire Snake
Home Science
Make Hot Ice
Red Bull And Milk Experiment
A Science Trick

Damped Oscillation
Torque, Levers - Universal Law
Newton's Laws Of Motion
Motion Basics - In A Plane
Simple Harmonic Motion
2nd Law Of Motion
Work And Energy
Rotational Inertia
Internal Energy
Frictional Forces - Blocks
Graph Of Stress Vs Strain
Young's Modulus
Work Done - Expanding Gas
Bernoulli's Equation
Fluid Mechanics - Static Pressure
Flow Equation Through A Pipe
Sound Pipe - Open At Both Ends

Battery Energy And Power
Zener Diodes In Circuits
Electric Circuits
Fourier Transform
Inductors And Inductance
Grounding And Shielding
Capacitors And Capacitance
Transistors - Field Effect
Units, Measurements - Amperes
Voltage, Current, Electricity
Resistors - Ohm's Law
AC Current Impedance
DC Circuits, Resistance
Elementary Charge
Vector Field
Electric Field Of A Dipole
Contour Lines
AC Generator
Three Phase Electric Power
Transmission Lines
Boost Converters: Electric Power
Voltage Rectifiers
Hydroelectric Turbine

Photometry - Illuminance
Optics -Simple Microscope
Photoelectric Effect
Coherent Light Waves - Lasers
Lenses, Refraction
Wave Equation
Lenses - Ray Diagrams
Convex Mirror - Ray Diagram
Convex Mirrors
Double Slit Experiment
The Physics Of Colour

Electromagnetic Waves
Electromagnetic Induction
Ferrofluid - Magnetic Liquid
Standing Waves
Radioactive Alpha Decay
Weak Nuclear Force

Quantum Physics
Matter As A Wave
Matter As A Particle
Gravitational Waves
Light And The Quantum
Speed Of Light
Einstein's Universe
Twin Paradox - General Relativity
Relativity - Time Dilation
Moon's Gravitation
Gravity Of Moving Mass
Quantum Fields
Particle Accelerators
Black Holes
Quantum World
Quantum Tunneling
Quantum Spin
Quantum Wave Function
Quantum Operators
Quarks, Strong Nuclear Force
Delayed-Choice Quantum Eraser

The Moon
Solar System
Hubble Images
Opportunity Rover
Orbital View
Flyover: Planets And Moons
Our Solar System's Moons
NASA's Cassini

The Physics of Perception

Contact forces are those types of forces that result when the two interacting objects are perceived to be physically contacting each other. Examples of contact forces include frictional forces, tensional forces, normal forces, air resistance forces, and applied forces. Not only do electrostatics permeate the events of everyday life, without the forces associated with static electricity, life as we know it would be impossible. Electrostatic forces - both attractive and repulsive in nature - hold the world of atoms and molecules together in perfect balance. Without this electric force, material reality at the macroscopic level of perception would not exist.

Just as human beings have eyes for the sensory detection of light and color, so we are equipped with ears for the detection of sound waves. We seldom take the time to ponder the characteristics and behaviors of sound and the mechanisms by which sounds are produced, propagated, and detected. Sound is a wave that is created by vibrating objects and propagated through a medium from one location to another.

As light travels through a given medium, it travels in a straight line. However, when light passes from one medium into a second medium, or through a lens, the light path bends, and refraction takes place. The refraction occurs precisely at the boundary. Once the light has crossed the boundary between the two media, it continues to travel in a straight line. Only now, the direction of that line is different than it was in the former medium. When viewing an object, if light from that object changes media on the way to your eye, a visual distortion is likely to occur.

Tesla Valve

Nikola Tesla had invented a very interesting one-way valvular conduit. Let's understand the physics of the undulating fluid dynamics of the flow.

Magnetic Field

This animation will describe the production of a magnetic field around a current carrying circular coil, and discuss finding the direction of magnetic field lines thus generated.

Physical and Chemical Changes

Physical changes of state and chemical changes explained. A chemical reaction results via changes in electron orbital energy states, while a physical change takes place due to interactions of molecular forms but not an alteration of chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting, whereas some physical changes are boiling, melting, freezing, and shredding.

Archimedes' Principle

Archimedes' principle, physical law of buoyancy, discovered by the ancient Greek mathematician and inventor Archimedes, stating that any body completely or partially submerged in a fluid (gas or liquid) at rest is acted upon by an upward, or buoyant, force, the magnitude of which is equal to the weight of the fluid.

Physics Job Listings

Mechanical engineers typically need a bachelor's degree in mechanical engineering or mechanical engineering technology. In the US, most undergraduate mechanical engineering programs are accredited by the Accreditation Board for Engineering and Technology (ABET). Mechanical engineering programs usually include courses in mathematics and life and physical sciences, as well as engineering and design. Mechanical engineering technology programs focus less on theory and more on the practical application of engineering principles. They may emphasize internships and co-ops to prepare students for work in industry.

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