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  • Strike while the iron is hot !
    AskPhysics Blog Feed Dear students, CBSE has given you more time for exams. We have approximately 7 days before the Physics exams. How to use this seven days effectively for a thorough revision is very important. 7-8 days of sleeping is a must. One hour of exercise 1 to 2 hours for break fast lunch […]
  • Dreams come true only for those who do their part
    AskPhysics Blog Feed I was recently narrating the life story of a girl from Dindigul who got married to a police constable at the age of 14. She was not even reached class 10. She became the mother of two kids by the age of 18. During that time she had to accompany her husband […]
  • “DID THOSE PHILOSOPHERS WORK IN VAIN”
    AskPhysics Blog Feed “The Philosophers who worked in search of the Philosophers’ stone and those set themselves dedicated to find the elixir of life”The works of those in search of the Philosopher’s stone didn’t go in vain, They made the beginning. The beginning itself was so wonderful that anyone who got touched by the idea […]
  • Quarks, conservation, entanglement
    AskPhysics Blog Feed Doubt from AskPhysics.comI have heard the following statements-> 1. Quarks always exist in a group of 2 or 3, and can not stand alone. 2. Protons are made up of 2 up quarks, and 1 down quark. 3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For […]
  • Prepare for Physics oral test too during lockdown
    AskPhysics Blog Feed Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown The post Prepare for Physics oral test too during lockdown appeared first on Ask Physics.
  • Theory of Relativity
    AskPhysics Blog Feed The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction? SUBSCRIBE to the YouTube […]
  • A numerical problem from motion in 1 Dimension
    AskPhysics Blog Feed A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is […]

Watch the Big Bang Theory Videos

Penny (The Big Bang Theory)
Penny (The Big Bang Theory) (Photo credit: Wikipedia)

The Big Bang Theory is an American sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the show, along with Steven Molaro. All three also serve as head writers. It premiered on CBS on September 24, 2007.
The show is centered on five characters: roommates Leonard Hofstadter and Sheldon Cooper, two physicists who work at the California Institute of Technology (Caltech); Penny, a blonde waitress and aspiring actress who lives across the hall; and Leonard and Sheldon’s equally geeky and socially awkward friends and co-workers aerospace engineer Howard Wolowitz and astrophysicist Rajesh Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny’s social skills and common sense.
Three other supporting characters have also been promoted to starring roles: Leslie Winkle, a physicist colleague at Caltech and, at different times, a lover of both Leonard and Howard who left the show after season 3; Bernadette Rostenkowski, Howard’s fiancée, who is a microbiologist and former part-time waitress alongside Penny; and Amy Farrah Fowler, a neurobiologist who joins the group after being matched to Sheldon on a dating website.

 

Collisions and Principle of Conservation of Momentum – Weblinks

According to the principle of conservation of momentum, the total momentum of a system of particles remains constant provided no external force acts on it.

Principle of conservation of momentum is one of the fundamental concepts of Physics.

 

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Physics Video Lessons & Problems, Organized by Unit

Kinematics

Learn Physics Through Videos (Khan Academy)

Introduction to motion Introduction to motion (part 2) Introduction to motion (part 3) Projectile motion (part 1) Projectile motion (part 2) Projectile motion (part 3) Projectile motion (part 4) Projectile motion (part 5) Projectile motion (part 6) Projectile motion (part 7) Projectile motion (part 8) Projectile motion (part 9) Projectile motion (part 10) 2 dimensional projectile motion (part 1) 2 dimensional projectile motion (part 2) 2-dimensional projectile motion (part 3) 2 dimensional projectile motion part 4 2-dimensional projectile motion part 5 Optimal angle for a projectile part 1 Optimal angle for a projectile part 2 – Hangtime Optimal angle for a projectile part 3 – Horizontal distance as a function of angle (and speed) Optimal angle for a projectile part 4 Finding the optimal angle and distance with a bit of calculus Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Laws Problems (part 1) Newton’s Laws Examples (part 2) Newton’s Laws Newton’s Laws and vectors Force with Vectors Introduction to Tension Tension (part 2) Mass on Inclined Plane Introduction to friction Friction on an inclined plane A more complicated friction/inclined plane problem Tension in an accelerating system and pie in the face Moving pulley problem (part 1) Moving pulley problem (part 2) Introduction to Momentum Momentum: Ice skater throws a ball 2-dimensional momentum problem 2-dimensional momentum problem (part 2) Introduction to work and energy Work and Energy (part 2) Conservation of Energy Work/Energy problem with Friction Introduction to mechanical advantage Mechanical Advantage (part 2) Mechanical Advantage (part 3) Center of Mass Introduction to Torque Moments Moments (part 2) Unit Vector Notation Unit Vector Notation (part 2) Projectile Motion with Unit Vectors Projectile Motion with Unit Vectors (part 2) Projectile Motion with Ordered Set Notation Introduction to centripetal acceleration (part 1) Centripetal Acceleration (part 2) Centripetal Acceleration (part 3) Visual Proof: a= v^2/r Calculus Proof that a=v^2/r Introduction to angular velocity Conservation of angular momemtum Introduction to Newton’s Law of Gravitation Gravitation (part 2) Intro to springs and Hooke’s Law Potential energy stored in a spring Spring potential energy example (mistake in math) Introduction to Harmonic Motion Harmonic Motion Part 2 (calculus) Harmonic Motion Part 3 (no calculus) Fluids (part 1) Fluids (part 2) Fluids (part 3) Fluids (part 4) Fluids (part 5) Fluids (part 6) Fluids (part 7) Fluids (part 8) Fluids (part 9) Fluids (part 10) Fluids (part 11) Fluids (part 12) Thermodynamics (part 1) Thermodynamics (part 2) Thermodynamics (part 3) Thermodynamics (part 4) Thermodynamics (part 5) Electrostatics (part 1): Introduction to Charge and Coulomb’s Law Electrostatics (part 2) Proof (Advanced): Field from infinite plate (part 1) Proof (Advanced): Field from infinite plate (part 2) Electric Potential Energy Electric Potential Energy (part 2– involves calculus) Voltage Capacitance Circuits (part 1) Circuits (part 2) Circuits (part 3) Circuits (part 4) Cross product 1 Cross Product 2 Cross Product and Torque Introduction to Magnetism Magnetism 2 Magnetism 3 Magnetism 4 Magnetism 5 Magnetism 6: Magnetic field due to current Magnetism 7 Magnetism 8 Magnetism 9: Electric Motors Magnetism 10: Electric Motors Magnetism 11: Electric Motors Magnetism 12: Induced Current in a Wire The dot product Dot vs. Cross Product Calculating dot and cross products with unit vector notation Introduction to Waves Amplitude, Period, Frequency and Wavelength of Periodic Waves Introduction to the Doppler Effect Doppler effect formula for observed frequency Doppler effect formula when source is moving away When the source and the wave move at the same velocity Mach Numbers

conceptual physics Bed of Nails demo

conceptual physics Centripital force

conceptual physics flotation

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