An alternating current (A.C.) generator is an important application of electromagnetic induction. A.C. generator is an electromagnetic device which transforms mechanical energy into electrical energy. It consists of a rectangular coil of wire which can be rotated about an axis. The coil is located between the poles of two permanent magnets. As the coil rotates, the magnetic field through the …
This post contains all the important definitions that you need for GCE O Level Physics. (Equivalent to American High School Diploma) If you do not recognise any of the terms listed here, you should proceed to review the respective topic (Click on each of the sub-headers). For a list of the important equations for O Level Physics, please visit O Level …
Ray Diagrams For Converging Lens Ray diagrams for converging lenses are used to determine the position, size, orientation, and type of image formed when an object is placed at various distances from the lens. Converging lenses, also known as convex lenses, are thicker at the center than at the edges and cause parallel rays of light to converge (come together) …
Comprehensive Revision Notes For O level Physics Physics is a fundamental subject that lays the groundwork for understanding the natural world. These free physics notes are tailored to help you consolidate your knowledge, prepare for exams, and master the concepts of O Level Physics (equivalent to American High School Diploma in US) with ease. If the notes here are too …
Power Power is defined as the rate of work done or energy converted with respect to time. $P = \frac{W}{t}$ OR $P = \frac{E}{t}$ , where W = work, t = time, E = Energy SI Unit for power is watt (W), scalar quantity Power tells us how fast work is being done or how fast energy is being converted from …
Energy Energy of a system is defined as its capacity to do work. (Note: Work is covered in the next sub-topic) Principle Of Conservation Of Energy The Principle of conservation of energy states that energy cannot be created nor destroyed in any process. Forms Of Energy Kinetic Energy Kinetic Energy, $E_{k}$ is the energy a body possessed by virtue of its …
Work Work is done when a force moves the object in the direction of the force and is given by the product of the force and the distance moved in the direction. Conditions When NO Work Is Done NO work is done when If no work is done for the 2 scenarios above, WHY do you feel tired (if you are the …