Work Done on a Charge When a mass with charge moves through an electric field, work is done The work done in moving a charge q is given by: ?W?=?q?V Where: ?W?= change in work done (J) q?= c...
Graphical Representation of Electric Potential Electric field strength,?E?and the?electric potential,?V?can be graphically represented against the distance from the centre of a charge,?r E, ...
Electric Potential In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between them Similarly, to move a positive charg...
Scalars & Vectors What are scalars? Scalars?are quantities without?direction They have only a?size (magnitude) For example:?speed, distance, time, mass Most scalar quantities?can never be?negat...
Electric Potential In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between them Similarly, to move a positive charg...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.5.2 Calculate Relative Mass Relative Formula Mass & Relative Molecular Mass We have seen previously that the symbol for the relative atomic mass is?Ar ...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.5.1 Word & Chemical Equations Writing Equations Nothing created - nothing destroyed However, the same atoms are always present before and after reaction They ...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記1.4.4 Electronic Configuration & Reactivity Similar Chemical Properties Chemical properties of elements in the same group Elements in the same group in th...
Gravitational v Electrostatic Forces The similarities and differences between gravitational and electrostatic forces are listed in the table below: Table Comparing G and E Fields The ...
