In 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…
Atal Tinkering Labs ATL
Have 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.
In 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
So 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!.
A 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
This 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.
In this video I review the HR (or Hertzsprung Russell) Diagram. Quickly reviewing the concepts of brightness and colour of a star, I show you how we can classify stars and how that leads to better understanding of the nature of stars.