Tuesday, 3 November 2015

Solar cars...

Remember when we tried to use the solar cars but they wouldn't work?  We tried lots of different things, even 'topping up' the sun with a torch and we still couldn't get them to go!  
Well we have done some more thinking, a bit of online exploring and some more experimentation and realised that:

  • the solar panels need to be exposed to direct sunlight - not filtered through glass;
  • the cars need to be used in open areas without shadow.
We found a sunny spot outside that had no big shadows from buildings or trees.  The cars quickly spun into action!  We had lots of fun racing them around.  We were surprised that they instantly stopped the moment we took them out of direct sunlight.  

The direct current generated powered the little car and made it move.


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