circuit

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TriColour LED Flashlight Keywords: activity, battery, breadboard, circuit, colour addition, LED, resistors, switch, tricolour LED

Make your own TriColour LED Flashlight!

This is a straightforward classroom or summer camp activity to teach students simple circuitry and the addition of colours. The students can go home with a useful and energy-efficient flashlight.

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6 years 12 weeks ago
Light Bulb Efficiency and Hand Crank Energy Generation Keywords: breadboard, circuit, efficiency, electricity generation, energy, energy conversion, Lend an Experiment (LEx), lighting

What does it really take to power a light bulb?

This activity is part of the LEx (Lend an Experiment) Climate Kit. Students compare the power consumption of incandescent and LED bulbs through the use of hand crank generators and a simple circuit. Concepts include the conversion of mechanical to electrical energy, power and efficiency, and measurement estimation. There is an option to also investigate the efficiency of the hand crank generator.

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2 years 8 weeks ago
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