ASSIST

Resistance of a wire

These downloadable resources investigate the electrical resistance of wire.

The resources detail a student practical activity that looks at the factors that determine electrical resistance in a wire.

The independent variables of length and cross-sectional area are investigated for nichrome wire.

Graphs can be drawn to confirm the relationship of these variables to the resistance, and the concept of resistivity is introduced and explained. 

Sample answers are provided along with a sample Excel spreadsheet of data tables and graphs.

Resistance - student designed investigation

This downloadable resource deals with determining the value of an unknown resistor.

The resource is a student-designed investigation, with a basic concept presented and a series of questions for them to consider.

It relies on some student knowledge of Ohm's Law and how to determine a resistor's value from the gradient of a voltage vs current graph.

Ohm's Law

These downloadable resources are for a practical activity where students measure the voltage across and current through a 56 ohm (or similar) resistor.

A graph of Voltage vs Current gives a straight line and the gradient value is the resistance. Sample answers are also provided.

Hubble's Law data analysis

This downloadable resource looks at the Hubble constant.

The resource is a data analysis task where students plot the velocity of receding galaxies against their distance from Earth to obtain a value for the Hubble constant.

The students are then asked to convert this value into the age of the Universe and answer some other questions. Answers are also provided.

Hertzsprung Russell diagram

This downloadable resource investigates the Hertzsprung Russell Diagram.

The resource is a student data analysis task designed to teach students about the Hertzsprung Russell Diagram.

In this task, the absolute magnitude and spectral class for the 25 brightest stars in the night sky are listed.

The task is for students to plot this data to produce their own H-R diagram and answer some questions about it.

Answers are included.

SOP: Demonstrating the Van de Graaff generator

This downloadable document is a Standard Operating Procedure (SOP) and detailed procedure for demonstrating the Van de Graaff generator.

The accompanying example risk assessment should be used as a guide only, and users should consider risks and safety measures in their local environment before proceeding.

SOP: Physarum polycephalum (slime mould) care and use

This SOP details how to care and use a slime mould.

The downloadable document is a Standard Operating Procedure (SOP) and detailed method for how to care and use Physarum polycephalum (slime mould).

The accompanying example risk assessment should be used as a guide only and users should consider risks and safety measures in their local environment before proceeding.

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