Defining an Electric Field An electric field is defined as a region of space in which a?charged?particle experiences a?force Hence, electric fields are a type of?force field The charged particle co...
Centripetal Force ?Centripetal force can be calculated using any of the following equations: Centripetal force is always perpendicular to the direction of travel Where: F?= centripetal force...
Maintaining Circular Motion An object moving in a circle is not in equilibrium, it is constantly changing direction Therefore, in order to produce circular motion, an object requires a?resultant fo...
Deriving Equations for Centripetal Acceleration An object moving in?uniform circular motion?travels with a constant?angular velocity?and?angular speed However, its?direction?is always changing Ther...
Angular Velocity The?angular velocity?ω?of a body in circular motion is defined as: The rate of change of angular displacement In other words, angular velocity is the angle swept out by an object i...
Radians A?radian?(rad) is defined as: The angle subtended at the centre of a circle by an arc equal in length to the radius of the circle Radians are used whenever describing the angular displaceme...
Deriving the Energy-Momentum Relation The equation for calculating the?kinetic energy?Ek?of a particle?m?moving at velocity?v?is given by: The formula for the momentum?p?of the same particle is: Co...
Elastic & Inelastic Collisions In both collisions and explosions, momentum is?always?conserved However,?kinetic energy?might not always be A collision (or explosion) is either: Elastic?– if the...
Core Practical 10: Investigating Collisions using ICT Aims of the Experiment To investigate conservation of momentum in two directions Considering if collisions are elastic Constructing a diagram o...
