Remember, as a member of the Science Bus Club you can ‘Ask Albert’ a question about any of the topics. So if you’re not already a member join today!!
There is a big difference between using batteries for your experiments and using the mains power supply. NEVER USE THE MAIN PLUGS IN YOUR HOUSE OR SCHOOL WITHOUT AN ADULT SUPERVISING YOU. MAINS ELECTRICITY IS VERY POWERFUL AND DANGEROUS AND IT COULD KILL YOU.
You will have already done circuits in year 4 so this is a short revision course.
Series Circuits
A series circuit allows electrons to follow only one path. The loads in a series circuit must share the available voltage. In other words, each load in a series circuit will use up some portion of the voltage, leaving less for the next load in the circuit. This means that the light, heat, or sound given off by the device will be reduced.
Parallel Circuits
In parallel circuits, the electric current can follow more than one path to return to the source, so it splits up among all the available paths. Across all the paths in a parallel circuit the voltage is the same, so each device will produce its full output. In other words if you have two bulbs they will light with the same intensity
Symbols Used In Drawing Circuits
- Light
- Cell
- Battery
- Battery
- On / Off Switch
Note - Click on the flash window above to activate it
Some Cool Links
Click on any of the links below to find out lots more.
Have fun!!!
Remember, as a member of the Science Bus Club you can ‘Ask Albert’ a question about any of the topics. So if you’re not already a member join today!!
