January 10th, 2014

Today we discussed possible approaches to the Coursework B experiments. 
We discussed also the concepts of:

• Control Variables - things you keep constant.
• Independent Variable - the thing that you change (Cause).
• Dependent Variable - the thing that changes as a result of the Independent Variable (Effect), this is the result you measure.
  

We then did a number of Electronics experiments.
Homework is to read Chapter 44 and answer the questions at the end of this chapter.

Electronics is about controlling small currents.
This can involve using devices such as:

• Resistors (Fixed, variable and LDRs)
• and Diodes (including LEDs)