This is a skills task to practice your electronics tinkering. Follow the steps. Take photographs.....and post your progress in a blog post titled DIY On-Off Switches. Use your circuit with three wires, an LED and a coin cell battery (in a holder) that you used in the previous exercise (Wire Stripping and Splicing Skills)
- Cut five lengths of 22 AWG solid wire and strip 1/2-in of insulation from each end. Have your classmate video you stripping one of the wires and post on your blog.
- Splice three of your wires in a circuit connected to two 1.5V batteries (in a 2-battery holder) and one LED (any color). Prove that you can make a working circuit with the two 1.5 V batteries, an LED and spliced wire (the LED should be "ON" in your photo evidence in your blog.
- Make an ON-OFF Switch for the circuit in 2. (above) out of a clothes pin. Use a piece of cardboard in-between the clothespin to break the circuit. Use aluminum foil taped to the clothespin as the contact surface for the ON position.
- Make a second ON-OFF switch (your own invention) which is an improvement over the clothespin.
- Use one 9V battery and make a SERIES circuit with one LED, a toy motor with a homemade propeller (windmill) on the shaft and a piezo buzzer. Photograph and video your circuit and post in your blog.
- Use two 1.5V batteries in series and wire IN PARALLEL one LED, a toy motor and a homemade propeller.
Write up all six tasks in a single blog post (worth 60 points)