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This is a first hand free fall method to find g by direct measurement of free fall time using a smartphone as the timer in two different ways. Then you can compare the two methods.

AS or A2 Practical

Suitable for teacher to introduce resistivity using metal wires. Tested already with my students. Please write a comment if you have used this. Please write to me if you need typical results.

Previous knowledge on e.m. induction is essetial.

One page experiment sheet.

Straight from past papers. Collated for ease of use. Covers all of OCR A topics on Charge, Current and Circuits. Serious students should try answering the questions after each sub topic has been covered. Only 4 years' papers, 8 exams&' questions are here. All subtopics have been covered in these questions. More to follow.

One page summary of e.m. induction! Suitable for revising.

Comes under Forces and Energy category. Did you find this useful? Write a comment.

Written for practice in Experment 1 in CIE practical exam.

Forces and Energy , IGCSE Spec

This is a revised version of my earlier edition. Can be used as revision aid or for class work. Please leave a comment if you have used it.

Suitable for students to practise before their final exam. Can also be used as class or home work.

GCSE or IGCSE Physics Introduction to Momentum and the Law of Conservation of Momentum Intended for Grade 9 ,10 or 11 students starting the topic on collisions and explosions. It introduces momentum as the amount of action a body has and defines momentum. It offers opportunities to perform calculations. The second part is intended only for the higher ability groups.

Part 1 of about 3 or 4. Rest to follow. Can be turned into a worksheet for checking knowledge by replacing keywords with blanks.

An essential resource for A2 students preparing for their exams!

Suitable for consolidating knowledge and understanding.

Questions grouped from past exams, Extended paper.

Here is a list of experiments I have made using the CIE textbook and my own experience. Suggestions for improvement and comments are welcome!

Chapter Questions from CIE Board for Textbook written by by David Sang et al. Can be used in a variety of ways!

Prep for Examination. Also suitable as class/home work