Semiconductors
Semiconductors (n-type and p-type) N-type semiconductor - Silicon doped with phosphorus - majority charge carriers are negatively charged electrons - holes in this material are the minori...
Lc Physics Notes
Notes tagged with "lc physics".
Wave & Wave Motion
What is a wave? - A wave is a means of transferring energy through a medium, without any net movement of that medium.Transverse wave: A wave where the direction of vibration is perpendicula...
Force, Mass and Momentum – Definitions
Force is anything that causes the velocity of an object to change. - Force has direction in which it acts – it is a vector quantity. - The symbol for force is F. - The unit of force is the ...
The Cathode Ray Tube
Cathode rays are streams of high speed electrons moving from the cathode.How a Cathode Ray tube works: - A low voltage is placed across the filament. Current flows through and it becomes wh...
The Electron – Physics Chapter Summary
Properties of the Electron - It is a particle that orbits the nucleus of an atom. - It has a very small mass. - It is negatively charged. Charge = e.This is the smallest amount of charge fo...
Electricity: VOLTs, OHMs and AMPs
What are VOLTs, OHMs & AMPs? Ever wonder what voltage really is?Voltage, Current and Resistance Mr. Andersen describes the relationship between voltage, current and resistance in an electr...
Differences between series and parallel circuits
A simulation to visualise electron flow through both circuit types.
Optics Waves & Light Sound – Leaving Cert Physics Terms
Real Image – is an image formed by the actual intersection of light rays. Virtual Image – is formed by the apparent intersection of light rays. Refraction – is the bending of light as it p...
Electricity – Leaving Cert Physics Terms
Coulomb’s Law – states that the force between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. Electric...
Heat – Leaving Cert Physics Terms
Temperature – of an object is a measure of the hotness or coldness of that object. Thermometric Property – is any physical property that changes measurably with temperature. Specific Heat ...