This resource is a complete lesson that covers Electric Potential & Field Comparisons (Electric & Gravitational) for the OCR A Level Physics A course. However, it is useful for other exam boards too.
This lesson teaches the following content:
-electric potential at a point as the work done in bringing unit positive charge from infinity to the point; electric potential is zero at infinity
-electric potential V = Q/4πε0r at a distance r from a point charge; changes in electric potential
-capacitance C = 4πε0R for an isolated sphere including derivation from equation for electric potential and Q = VC
-force–distance graph for a point or spherical charge; work done is area under graph
-electric potential energy = Vq = Qq/4πε0r a distance r from a point charge Q.
-similarities and differences between the gravitational field of a point mass and the electric field of a point charge
This lesson includes:
-A full presentation including 3 example questions with worked solutions.
-A worksheet with model answers, perfect to set as homework.
-Clear visual aids and diagrams to simplify complex concepts.
-Editable PowerPoint and Word document for easy customisation.
Click on the links below to check out our FREE A Level Physics resources:
Mass, Weight & Force Basics Lesson
Net Forces & Equilibrium Lesson
Moments & Torques Lesson
Drag & Terminal Velocity Lesson
Density, Pressure & Upthrust Lesson
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