A Powerpoint presentation for AS Physics OCR A students. Includes notes and questions on: Kirschoff’s 1st Law Conservation of Charge Mean Drift Velocity I=nAve and relationships with v number density of charge carriers distinction between conductors, semiconductors and insulators in terms of n

A pair of powerpoint resources to support AS Physics OCR A - covers all specification points Includes: Potential difference (equation, SI base units, concept, questions) Electromotive Force (equation, SI base units, concept, comparison with p.d, questions)

A GCSE Physics lesson on terminal velocity with differentiated worksheets and practical activity (will need equipment) based on a class of 24 pupils in 4 groups. It's busy, mucky, and, like all good physics lessons, they've got to work stuff out. MUST: Identify forces on a falling object in a fluid SHOULD: Use force diagrams to show how force changes during a fall/describe changes COULD: Explain terminal velocity/in terms of resultant force/Interpret v/t graphs Powerpoint is to provide structure to the lesson and includes the plenary. I recommend embedding the online stopwatch. Starter – individual (Grade C) entry question based on previous lessons Task 1: Experiment – groups, roles in groups, (calculations v=d/t + mean) B- A grade Task 2: Group 4 – Aristotle worksheet (B grade) – less wordy task Group 3 – Galileo worksheet (B to A grade) – task includes acceleration calculations Group 2 & 1 – Newton worksheet (A grade) – focuses on graphs only Plenary  Exam question – individual, self-assess.