Variable resistance

Variable resistance
Publication Date: June, 2014
Type of Resource: Practical activity/investigation

This downloadable resource is a student practical activity where students examine the properties of variable resistors.

In the activity students create a variable resistor using a shaded-in 'box' drawn with a 'lead' pencil (graphite really) and use it in series with a Light Emitting Diode (LED) to control the amount of light emitted by the LED. 

The document contains student instructions and questions to answer.

Teacher notes are provided on page 2 of the document.


Australian Curriculum:
  • Year 9 > Science Inquiry Skills > Communicating > Communicate scientific ideas and information for a particular purpose,... > ACSIS174
  • Year 9 > Science Inquiry Skills > Processing and analysing data and information > Use knowledge of scientific concepts to draw conclusions that are consistent... > ACSIS170
  • Year 9 > Science Understanding > Physical Sciences > Energy transfer through different mediums can be explained using wave and... > ACSSU182