Study guides, Class notes & Summaries

A practice test for Curious Incident of the Dog in the Night-Time

Physical Science, Physics Definitions, Matric IEB Vector - a physical quantity that has both magnitude and direction Scalar - a physical quantity that has only magnitude Resultant vector - the single vector which has the same effect as the original vectors acting together Distance - the length of path travelled Displacement - change in position Speed - the rate of change of distance Velocity - the rate of change of displacement Acceleration - the rate of change of velocity Weight - ...

Physics definitions IEB A pulse - ANS-A single disturbance in a medium that moves from one point to another Medium - ANS-Material through which a pulse moves Transverse pulse - ANS-A pulse where the particles disturbed move perpendicularly to the direction in which the pulse is moving Amplitude - ANS-The maximum displacement of a particle in the medium from its rest position (equilibrium) Interferende - ANS-When two or more pulses meet at the same time in the same space Superposition ...

Chemistry definitions IEB Mixtures - ANS-A combination of two or more pure substances that are not chemically bonded together homogeneous mixture - ANS-A mixture with uniform composition and the various components of the mixture cannot be seen heterogeneous mixture - ANS-A mixture that does not have uniform composition and the various components of the mixture can be seen Pure substances - ANS-Any substance that is not a mixture, including elements and compounds Elements - ANS-Pure ...

All IEB SAGS Chemistry Definitions Molar Mass - ANS-The mass in grams of one mole of that substance. Solute - ANS-The substance that is dissolved in the solution. Solvent - ANS-The substance in which another substance is dissolved, forming a solution. Concentration - ANS-The number of moles of solute per volume of solution. Standard Solution - ANS-A solution of known concentration. Intramolecular Bond - ANS-Bond occurring between atoms within molecules. Electronegativity - ANS-A measu...

IEB rate of reactions Exam reaction rate - Answer-the change in concentration per unit time of either a reactant or product collision theory - Answer-a model that explains that a reaction will only proceed when reactant particles collide effectively. An effective collision is one where reacting particles have sufficient energy Factors that influence reaction rate - Answer-1. Nature of reacting substance 2. Surface area of a solid 3. Concentration and pressure of the reactants 4. Te...

IEB Matric Chemistry Definitions Exam Molar mass - ANS-The mass in grams of one mole of that substance Solute - ANS-The substance that is dissolved in the solution Solvent - ANS-The substance in which another substance is dissolved, forming a solution Concentration - ANS-The number of moles of solute per unit volume of solution Standard solution - ANS-Solution of known concentration Intramolecular bond - ANS-Occurring between atoms within molecules Electronegativity - ANS-Measure of t...

IEB Assessment Matters Examination contains exam papers with marking guidelines.

IEB Assessment Matters Examination contains exam papers with marking guidelines.