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Rich has been teaching physics 2009. He is often found scurrying towards the free buffet on teacher training days.

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Rich has been teaching physics 2009. He is often found scurrying towards the free buffet on teacher training days.
Resistivity/Resistance investigation - Length vs. Resistance of pencil graphite
richwrigleyrichwrigley

Resistivity/Resistance investigation - Length vs. Resistance of pencil graphite

(0)
I made a PowerPoint a few years back on how to make a resistor with pencils. Here are (differentiated) instructions explaining to students how to carry out the investigation. Included is the original publisher file if you want to edit it. If you don't have publisher a PDF is also included! To do this experiment you will need a digital multimeter that can measure resistance.
The potential divider
richwrigleyrichwrigley

The potential divider

(1)
Powerpoint slides explaining what a potential divider is, and explaining step by step how we derrive the equations for a potential divider. With an investigation suggestion for potential dividers. Worksheet included with 4 KS5 questions on potential dividers, and mark scheme with worked solutions.
Space Displays Bundle
richwrigleyrichwrigley

Space Displays Bundle

3 Resources
Bundle of two of my most popular displays. Each resource contains several high quality images of either features of the Solar System or the history of Manned Spaceflight or Newton's Law of Gravitation.
Transformer experiments - For non-specialist physics teachers
richwrigleyrichwrigley

Transformer experiments - For non-specialist physics teachers

(0)
Attached is everything you will need to teach a lesson (with a class practical or demonstration) on transformers. Using a multimeter that can measure AC voltage (available at places like Maplins), and a set of transformer coils (available from Phillip Harris) students measure the voltage across the primary and secondary coil of a transformer. Included are student instructions, guided questions, and teacher set up instructions. PLEASE MAKE SURE YOU HAVE A MULTIMETER THAT CAN MEASURE AC VOLTAGE BEFORE PURCHASING! See cover image for all equipment you will need!