Circuits+2

Criterion A: Research & Anaylsis

Voltage: A measure of the difference in electric potential between two points in space, a material, or an electric circuit, expressed in volts. Current: the amount of electric charge flowing past a specified circuit point per unit of time. Resistance: the opposition of a body or substance to current passing through it, resulting in a charge of electrical energy into heat in the form of energy. Circuit: A closed path followed or capable of being followed by an electric current. Transistors: A small electronic device containing a semiconductor and having at least three electrical contacts. LEDs: A semiconductor diode that converts applied voltage to light. Capacitor: An electric circuit element used to store charge temporarily. Resistor: A device used to control current in an electric circuit by providing resistance. Switch: A device used to break or open an electric current. Digital Electronics: Represents signals by discrete bands of analog levels, rather than by a continuous range. Integrated Circuit: A miniaturized electronic circuit that has been manufactured in the surface of a thin substrate of semiconductor material. Binary Code: A system of representing text by using the digits 0 and 1. Circuit Breakers: An automatically operated electric switch designed to protect an electric circuit from damage. Conductor: A material allowing the flow of electric current. Integrated Circuit: Contains hundreds of parts. A complex set of electronic components. Circuit Breaker: Protects houses, school, and all buildings with electricity from an electrical overload. Conductor: Carries electricity. Reciprocating: A back and forth, and up and down motion which repeats over and over again. Rotary Motion: Motion that goes in a circle. Oscillation Motion: Motion that moves along a path then returns along the same path.

CIRCUITS
Area of Interaction: Environments Significant Concepts: Basic circuits Unit Question: How have circuits impacted our environments? Go to the following site and run the circuit construction kit. The site is:

[|Circuit Link]

Using this site, answer the following questions:

1. Using one battery, make the light bulb work.

a. Volts: 9.00 V

b. Amps: .9 Amps

2. Light two light bulbs with one battery.

a. Volts: 4.50 V

b. Amps: .45 Amps

3. Using a switch to light one light bulb.

a. Volts: 9.00 V

b. Amps: .9 Amps

4. Use a capacitor with your circuit. (One battery, one bulb)

a. Volts: 8.75 V

b. Amps: 0.88 Amps

5. Use an inductor in your circuit. (One battery, one bulb)

a. Volts: 9.00 V

b. Amps .9 Amps

6. Use an AC Voltage in your circuit. What happens to the current?

a. Volts: 18.98 V

b. Amps: 1.99 Amps

7. Which items in the grab bag complete the circuit?

(One battery, one bulb)

a. Dollar Bill No

b. Paper clip Yes

c. Penny Yes

d. Eraser No

e. Pencil lead Yes

f. Hand No

g. Dog No

8. Use a resistor in your circuit. (One battery, one bulb)

a. Volts: 4.50 V

b. Amps: .45 Amps

9. Add two batteries to light one light bulb.

a. Volts: 18.00 V

b. Amps: 1.80 Amps

10. Add three batteries to the circuit. Right click on one of the batteries

and change the voltage to 100%. What happens to your batteries?

a. Volts: 117.98 V

b. Amps: 11.80 Amps

11. Make your own circuit

a. Volts: 18.98 V

b. Amps: 1.98 Amps

c. Explain what happened with your circuit: My circuits energy went back and forth for negative to positive.

d. Describe/draw your circuit below (or take a screen shot): My circuit had 5 batteries on it, one light bulb and AC Voltage on it.

Evaluate
What did you like best about the circuit unit? I liked putting them together and seeing what the different circuits did.

If you could change anything about the assignment, what would you change? I would wouldn't change anything really because you couldn't really change the assignment all that much.

Tell me 2-3 things that you learned about circuits. That the resistor resists some of the energy coming through the circuit. That if you don't connect everything together then the circuit won't work. If you have two switch, you can use one to turn it on and another to resist some of the energy.

How have circuits impacted our environments? It impacts whether we get light in our buildings and how that light travels through the building. It impacts our technology and how we use our technology and whether it works or not.