BURGLAR ALARM PROJECT

PART I: DiagramsCircuit Diagram – You will design a circuit diagram on a piece of A4 paper. The diagram will show your burglar alarm is wired to work effectively as a parallel circuit. This diagram will use color and schematic diagram symbols to indicate accurate wiring.

5 Diagram is drawn neatly and correctly. All components are indicated accurately. Everything is included.

4 Diagram is neat. Most components are indicated accurately and everything is included.

3 Diagram is complete. Components are indicated mostly using schematic symbols and most everything is included.

2 Diagram is almost complete. Circuit components are included.1 Diagram is turned in. Schematic symbols were used.

Switch Diagrams (3) – You will create three switch diagrams, one for each type of switch you are creating. Your sketches should show which materials being used, along with the appropriate wiring. Label your sketches as needed.

5 Diagrams are neat and reflect a working switch. Labels are included neatly and all three sketches are complete and nicely drawn.

4 Diagrams reflect a working switch. Labels are included and all 3 sketches are nicely drawn and mostly complete.

3 Diagrams reflect a working switch. Labels are effective and sketches are complete.

2 Diagrams reflect a switch. Diagrams are labeled.1 Diagrams are turned in. Diagrams reflect a switch.

Burglar Alarm Diagram (Net Diagram) – Sketch out how the wiring of your burglar alarm is going to fit into the box (opened) on a piece of A3 paper. Your sketch will show the parallel circuit as it will be laid throughout the house, as well as the placement of the switches, buzzer, and any other parts of the circuit. This sketch should reflect exactly as it will look in your box.

5 Diagram shows a working parallel circuit with 3 different switches, a buzzer, and a power source. Diagram is high quality and very neat, using color and there are a total of 5 switches.

4 Diagram shows a working parallel circuit with 3 different switches, a buzzer, and a power source. Diagram is high quality and very neat, using color and there are a total of 4 switches.

3 Diagram shows a working parallel circuit with 3 different switches, a buzzer, and a power source. Diagram is high quality and very neat, using color and there are a total of 3 switches.

2 Diagram shows a parallel circuit with 3 different switches, a buzzer, and a power source. Diagram is neat, using color and there are a total of 3 switches.

1 Diagram shows a parallel circuit with 3 different switches, a buzzer, and a power source. Diagram is neat, and there are a total of 3 switches.

Part II: Burglar Alarm

Use a shoebox to create a building. Your building can have any kind of theme you’d like (a home, a school, a bank, ect), try to think of a building that would actually use a burglar alarm. When your wiring is finished, you can decorate your “building” to look like it’s theme. In the shoebox you will make “openings” (doors, windows, ect) that will activate the alarm (close the circuit) when opened (as if a burglar were trying to break in).

Using wires, a buzzer, a single AA battery and up to 5 switches (at least 3 different types), wire the building you made for a burglar alarm. Use the diagrams you created in part I to place the wires throughout your building. When each “opening” is opened, the circuit should close and cause the alarm to buzz. You must secure your connections and test and retest your switches so that the alarm works every time.

10 All openings activate the alarm (have working switches) on the first attempt to “break in”. All wires, buzzer and battery are covered or hidden. Building is neatly decorated to a theme. Alarm system uses at least 3 different types of switches and includes at least 5 switches.

9 All openings activate the alarm (have working switches) on the first attempt to “break in”. All wires, buzzer and battery are covered or hidden. Building is neatly decorated to a theme. Alarm system uses at least 3 different types of switches and includes at least 4 switches.

8 All openings activate the alarm (have working switches) on the first attempt to “break in”. All wires, buzzer and battery are covered or hidden. Building is neatly decorated to a theme. Alarm system uses at least 3 different types of switches and includes at least 3 switches.

7 All openings activate the alarm. Most wires, buzzer and battery are covered or hidden. Building has a theme. Alarm system uses at least 3 different types of switches and includes 3 switches.

6 Most openings activate the alarm (have working switches). Building has a theme and the alarm uses 3 different types of switches.