Circuits

CIRCUIT ASSIGNMENT === Area of Interaction: Environments === === Significant Concepts: Basic circuits === === Unit Question: How have circuits impacted our environments? ===

INVESTIGATE:

Define the following using this site: Webster's Dictionary

Voltage:

electric potential or potential difference expressed in [|volts]

Current:

a flow of electric charge; //also// **:** the rate of such flow

Resistance:

Also called [|ohmic resistance.] a property of aconductor by virtue of [|which] the passage of [|current] isopposed, causing electric energy to be transformed intoheat: equal to the voltage across the conductor dividedby the current flowing in the conductor: usuallymeasured in ohms. Abbreviation: R

Circuit:

Also called [|electric circuit.] the complete path of anelectric [|current], including the generating apparatus,intervening resistors, or capacitors.

Transistors:

a semiconductor device that amplifies,oscillates, or switches the flow of [|current] between twoterminals by varying the current or voltage between one ofthe terminals and a third: although much smaller in sizethan a vacuum tube, it performs similar functions withoutrequiring current to heat a cathode.

LEDs:

<span style="background-color: #ffffff; color: #ff0000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 200%;">light-emitting diode: a semiconductor diode that emits lightwhen conducting [|current] and is used in electronic equipment,especially for displaying readings on digital watches, calculators,etc.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Capacitor:

a device for accumulating and holding a charge of electricity,consisting of two equally charged conducting surfaces havingopposite signs and separated by a dielectric.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Resistor:

a device designed to introduce [|resistance] into an electric circuit.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Switch:

a device for turning on or off or directing anelectric [|current] or for making or breaking a circuit.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Digital Electronics:

The implementation of [|two-valued logic] using electronic [|logic gates] such as [|and gates], [|or gates] and [|flip-flops]. In such circuitsthe logical values trueand false are represented by two different [|voltages], e.g. 0V for false and +5V for true. Similarly, numbersare normally represented in [|binary] using two different voltages torepresented zero and one.

Digital electronics contrasts with [|analogue] electronics whichrepresents continuously varying quantities like sound pressureusing continuously varying voltages.

Digital electronics is the foundation of modern computers and [|digital communications]. Massively complex digital logic circuitswith millions of gates can now be built onto a single [|integrated circuit] such as a [|microprocessor] and these circuits can performmillions of operations per second.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">*Integrated Circuit:

a complex set of electronic components (silver and black pieces) on a semi-conducting material

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">*Binary Code:

a system of representing letters, numbers, or other characters, using binary notation.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">*Circuit Breaker:

Also called [|breaker.] a device for interrupting anelectric circuit to prevent excessive  [|current], as that causedby a short circuit, from damaging the apparatus in thecircuit or from causing a fire.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">*Conductor:

a substance, body, or device that readily [|conducts] heat, electricity, [|sound], etc.: <span style="color: #333333; font-family: Georgia,Verdana,Arial,Helvetica,sans-serif;">Copper is a good <span style="font-family: Georgia,Verdana,Arial,Helvetica,sans-serif;"> conductor of <span style="color: #333333; font-family: Georgia,Verdana,Arial,Helvetica,sans-serif;">electricity.

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Go to the following site and run the circuit construction kit. The site is:

[|Circuit Link]

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Using this site, answer the following questions:

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">On Jeremy's wikispace

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">1. Using one battery, make the light bulb work.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">2. Light two light bulbs with one battery.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">3. Using a switch to light one light bulb.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">4. Use a capacitor with your circuit. (One battery, one bulb)

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">5. Use an inductor in your circuit. (One battery, one bulb)

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">6. Use an AC Voltage in your circuit. What happens to the current?

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">7. Which items in the grab bag complete the circuit?

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">(One battery, one bulb)

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Dollar Bill

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Paper clip

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">c. Penny

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">d. Eraser

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">e. Pencil lead

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">f. Hand

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">g. Dog

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">8. Use a resistor in your circuit. (One battery, one bulb)

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">9. Add two batteries to light one light bulb.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">10. Add three batteries to the circuit. Right click on one of the batteries

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">and change the voltage to 100%. What happens to your batteries?

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">11. Make your own circuit

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">a. Volts:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">b. Amps:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">c. Explain what happened with your circuit:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">d. Describe/draw your circuit below:

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">CREATE

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Now start your circuit project. Get the materials and instruction from Ms. Bradfield.

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">EVALUATE

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 200%;">Answer the Following Questions After You Complete Your Circuit:

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">1. Did you like making the circuit?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">Yes.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">2. What did you like the least about making the circuit?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">I burned myself.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">3. What did you like the best about making the circuit?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">I like the robot.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">4. Using complete sentences, explain how circuits can be applied in the real world. (List three)

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif;">1. A CIRCUT CAN LIGHT UP THE NIGHT

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif;">2. A CIRCUT HELPS OUR COMPUTER USE AND TVS

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif;">3. A CIRCUT WILL KEEP YOUR TECHNOLOGY TOGETHER.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">5. Were you careful with the circuit, solder, and soldering iron?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">For the most part...

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">6. Were you respectful and nice to other students?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">Yes.

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">7. Did you take a picture of both your circuits and add them to this wiki page?

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">Yes.

<span style="color: #800000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 24px;">ATTITUDE

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">1. Did you have a good attitude answering the questions? Explain:

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">YES!

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">2. Did you have a good attitude making the circuits? Explain:

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">YES! it was fun and simple!

<span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">3. Were you a whiny baby during the circuit unit? Explain:

<span style="color: #ff0000; font-family: 'Arial Black',Gadget,sans-serif; font-size: 20.8px;">No... i loved it and had fun! I also liked the robot and how the switch would turn it on and off.