Photoresistor and Speaker Circuit

Whoops! I lost my photoresister! Will update when I find a replacement.

Potentiometer and Speaker Circuit

Questions:

1. No, the speaker drops whatever voltage you put into it.

2. To make it louder, simply up the voltage!

3. Yes! But I wish the speaker didn't sound so horrible!

Potentiometer and LED Circuit

Questions:

1. 1023
2. 0
3. It must drop 2.5 V
4. It is outside of the LED's range of output

Switch and LED Circuit

Questions:

1. You would have to move the resister attached to the button to the other side.

Blinking LED Circuit

My Musical Instrument!

My instrument follows Crawford's model of interaction in the following ways: I listen to the sequence (Listen), think about the sequence (Think), and can then decide to alter the tempo with a potentiometer or change the sequence with a press of a button (Speak). My instrument responds to my input (Listen), executes a code based on that input (Think), and changes the output accordingly (Speak).

My instrument could be improved in many ways. Part of the problem is physical; I simply don't own as many buttons as I would like, so I am only equipped (currently) to make 4 different sequences. I also wish i had another potentiometer, which I would use to change the pitch in addition to the tempo. I also wish i had a better speaker, as this one is quite painful to listen to at any frequency. I also wish my instrument could make sounds other than just one (screeching) tone, but for this a better, more complex speaker is required. 

Capacitor Discharging Circuit with LED Decay

Questions:

1. The Capacitor discharges through the LED because, when the switch is not pressed, there is still a complete circuit, however now the capacitor is functioning as the "battery". The capacitor is connected to the ground too but the current in the circuit is not flowing that way, because of the capacitor's battery like properties.