Note
Speed Of Sound
Speed Of Sound The speed of sound is the distance travelled during a unit of time by a sound wave …
Static Electricity
Static Electricity Static electricity is an excess of electric charge trapped on the surface of an object. The charge remains …
Electric Current & Circuit
Electric current is the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which …
Heating & chemical Effect of Electric Current
Energy exists in various forms such as mechanical energy, heat energy, chemical energy, electrical energy, light energy and nuclear energy. …
Magnetic Effect of Electric Current
Magnetic Effect of Electric Current When electric current flows through a wire wound around an iron bar, the bar behaves …
Magnetic Material & Terrestrial Magnetism
Magnetic Material & Terrestrial Magnetism Earth’s magnetic field (also known as the geomagnetic field) is the magnetic field that extends …
Electromagnetic Induction & Alternating Current
Electromagnetic Induction & Alternating Current Electromagnetic induction is the production of a potential difference (voltage) across a conductor when it …
Electromagnetic Wave
Electromagnetic Wave Light, microwaves, x-rays, and TV and radio transmissions are all kinds of electromagnetic waves. They are all the …
Reflection of Light
Reflection of Light Reflection is the change in direction of a wavefront at an interface between two different media so …
Refraction of Light
Refraction of Light Refraction is the bending of a wave when it enters a medium where it’s speed is different. …