Understanding vectors
In Atal Tinkering Labs ATL, More Info | No commentThis video address all three questions in a way that helps you understand the importance of vectors in Physics
20 Dec
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20 Dec
The equations of motion
In Atal Tinkering Labs ATL, More Info | No commentIn this short video I run through the 5 equations of motion, used in kinematics, and how they are derived.
20 Dec
true lies projectile analysis
In Atal Tinkering Labs ATL, More Info | No commentUsing projectile motion, we analyse a scene from James Cameron’s blockbuster, ‘True Lies’, to see if a terrorist can jump from a building to a pool in another building, whilst being chased by Arnie on a horse.
20 Dec
motion graphs explained
In Atal Tinkering Labs ATL, More Info | No commentAn explanation of motion graphs using two simple scenarios – constant velocity and constant acceleration. With the use of pHET animation.
20 Dec
Gravitational potential energy explained
In Atal Tinkering Labs ATL, More Info | No commentIn this video, I briefly discuss gravitational potential energy (PE = mgh) as assumed knowledge and move not o understanding GPE in the larger scale, as gravity changes. I discuss how the formula comes about and what it look graphically.
20 Dec
Rocket Launch Physics Explained
In Atal Tinkering Labs ATL, More Info | No commentHow do Newton’s Laws apply to a rocket launch? Using data from a simulation by Robert A. Braeunig, I present graphs of various measurements to explain Newton’s in the context of the multistage rocket Saturn V. In particular I explain how the g forces change for the astronauts as they ascend into orbit. For those doing the NSW HSC, this video address the following dot point (though I do not specifically address LCM) analyse the changing acceleration of a rocket during launch in terms of the: – Law of Conservation of Momentum – forces experienced by astronauts
20 Dec
Orbital Velocity Explained
In Atal Tinkering Labs ATL, More Info | No commentIn this video I discuss the connection between gravity and circular motion, involving satellites. I thus derive the formula used for orbital velocity of a satellite moving in a circular path For those doing the HSC Physics course, this video addresses the following dot points • analyse the forces involved in uniform circular motion for a range of objects, including satellites orbiting the Earth • define the term orbital velocity and the quantitative and qualitative relationship between orbital velocity,the gravitational constant, mass of the central body, mass of the satellite and the radius of the orbit using Kepler’s Law…
20 Dec
Kepler’s Three Laws Explained
In Atal Tinkering Labs ATL, More Info | No commentDo you know Kepler’s Laws of Planetary Motion? Do you know how they came about? This video covers that, explains how Newton confirmed them and goes through a worked example of applying Kepler’s Third Law
20 Dec
projectiles – why 45° give you max range
In Atal Tinkering Labs ATL, More Info | No commentHave you ever wondered why 45° gives you maximum range? Did you know that for every angle of launch there is another angle that gives you the same range. In this video I show how you can prove both mathematically, simply using the equations of motion.
20 Dec
Motors vs Generators – explained
In Atal Tinkering Labs ATL, More Info | No commentUsing a demonstration motor, I explain how a motor works, how a generator work, what their similarities are and what their difference are
20 Dec
JJ thomson and his electron
In Atal Tinkering Labs ATL, More Info | No commentIn this video I review, with the physics explained, how JJ Thomson discovered the electron I briefly review the history prior and also touch on electric fields, magnetic fields and circular motion and how they all contribute to JJ Thomson’s discovery
20 Dec
galvanometer
In Atal Tinkering Labs ATL, More Info | No commentIn this video I look an application of the motor effect – the galvanometer
20 Dec
Understanding force between current bearing wires
In Atal Tinkering Labs ATL, More Info | No commentSo why do current bearing wires attract? Why are their spacer between high voltage power lines? In this video I demonstrate and explain why current bearing wires experience a force between each, all due to the motor effect!.
20 Dec
Eddy and Lenz’ Law Explained
In Atal Tinkering Labs ATL, More Info | No commentThis video covers eddy currents and Lenz’ Law using the well known demonstration of dropping a rare earth magnet down an aluminium tube.
20 Dec
how speaker works
In Atal Tinkering Labs ATL, More Info | No commentA short video that explains the physics of a speaker. This video covers the dot point (in the NSW physics syllabus) • identify data sources, gather and process information to qualitatively describe the application of the motor effect in: the loudspeaker
20 Dec
back emf explained
In Atal Tinkering Labs ATL, More Info | No commentIn this video I discuss the nature of back emf and why a motor burns out when it’s suddenly stops
20 Dec
Wien’s Law
In Atal Tinkering Labs ATL, More Info | No commentA short overview of Wien’s Law using the animation from pHET
20 Dec
Solar Cells simplified
In Atal Tinkering Labs ATL, More Info | No commentWant to know how a solar cell works. Here is a summary of how a solar cell functions, utilising two key physics concepts – semiconductors and the Photoelectric Effect
20 Dec
Hertz and Radio Waves Explained
In Atal Tinkering Labs ATL, More Info | No commentThis video examines the experiment Hertz performed to validate Maxwell’s prediction for electromagnetic waves. It also touches on his observation of the photoelectric effect. Prepared to help students doing the HSC in Australia, it is suitable in other jurisdictions as well.
20 Dec
Black Bodies and Planck Explained
In Atal Tinkering Labs ATL, More Info | No commentExplaining the theory behind black body radiation, the problems it caused in terms of classical theory, and Max Planck’s solution
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