Conditions for Simple Harmonic Motion Simple harmonic motion (SHM)?is a specific type of oscillation An oscillation is said to be SHM when: The acceleration is proportional to the displaceme...
Calculating Centripetal Force An object moving in a circle is not in equilibrium, it has a resultant force acting upon it This is known as the?centripetal force?and is what keeps the object ...
Calculating Centripetal Acceleration Centripetal acceleration is defined as: The acceleration of an object towards the centre of a circle when an object is in motion (rotating) around a circ...
Angular Speed Any object travelling in a uniform circular motion at the same speed travels with a?constantly changing velocity This is because it is?constantly changing direction, and is the...
Radians In circular motion, it is more convenient to measure angular displacement in units of?radians?rather than units of degrees The?angular displacement?(θ) of a body in circular motion i...
Circular Motion Velocity?and?acceleration?are both?vector?quantities An object in?uniform circular motion?has a constant?linear?speed However, it is?continuously changing direction.?Since ve...
Required Practical: Investigating EMF & Internal Resistance Aims of the Experiment The overall aim of the experiment is to investigate the relationship between e.m.f and internal resista...
Electromotive Force When charge passes through a power supply such as a battery, it?gains?electrical energy The?electromotive force (e.m.f)?is defined as: The amount of chemical energy conve...
Potential Divider Circuit When two resistors are connected in series, through Kirchhoff’s Second Law, the potential difference across the power source is divided between them Potential divid...
