coursework: planning

• Discussed all the variables
• Written up your preliminary results
• USED your preliminary results to help you make decisions about making your experiment accurate
• Written down how you are going to keep the variables constant
• Written ‘step by step’ instruction on how to do/set up the experiment
• Drawn a diagram of the equipment (scientific)
• listed the equipment & explained why you need it
• Made a prediction, including a graph
• Explained your prediction, discussing your graph
  
  
  
  
  

Logic gates:

You need to learn:

• symbols & truth tables for NOT, AND, OR. try this web site for a summary
• be able to follow some systems to work out what might happen

revise this section, then try these questions 2, 3 & 6. answers

Lens & Ray diagrams:
you need to know:

• 2 types of lens and how the light rays change direction for each type
• the 3 ray diagrams when the object is at >F, F & focal length)
• what the uses of the 3 diagrams are e.g. projector, magnifying glass, telescope

when you have revised this section, try this test: p17 & 18.answers

Exam date: June 27th 2006
what you need to revise

Module 23 – Physics in Action

• interpreting the behaviour of control circuits represented in the form of input sensor
processor
output device;
• representing the behaviour of logic gates by means of truth tables
• explaining the operation of a potential divider and its use in input sensors;
• investigating the charging and discharging of capacitors (and, for Higher Tier,exploring their use as timers in electronic circuits)
• comparing the behaviour of converging and diverging lenses; and, for Higher Tier students,explaining the behaviour of a light dependent switch in terms of the components shown using symbols in a standard circuit diagram;
• considering the advantages and disadvantages of electronic control systems;
• using ray diagrams to explain the image formation of real and virtual images by a converging lens.