Hands-on science

Let's investigate!

We tested to see what happens to the brightness of the bulb, when we increased the voltage of the circuit.

We set up a fair test, making sure that the ambient light was the same each time and the app was the same distance from the lamp each time. 

Getting set up


Testing





As you can see, the brightness of the bulb increased dramatically as we increased the voltage.

Further investigation

After that, we decided to investigate the loudness of the buzzer as the voltage increased.







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