Charged Up

Charged Up

Description: Students will be tested on their knowledge of electricity and related concepts. The exam will cover circuits, conductors, voltage, current, resistance, schematic drawings, meter readings, electrical sources and safety.

 

Event Supervisor: Dan Judson

 

 

 event supervisor info
 Download the current rules here.  
  This is the insert from the "Quick Start" Kit
 Handout from Event Coach workshop
 Example questions (and answers)

 Did you attend the workshop?
 > Click here to download the worksheet from the workshop
 > Click here for the workshop answer key

Video of the workshop is available NOW!

 This event uses an optical answer sheet  Learn more
more event info be careful
  There may be a "Quick Start Kit"  available for this event. 
 
 See the Elementary Workshop List for this season
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elem faq button web

Will there be questions around finding or calculating Voltages or voltage drops across components (resistors / bulbs) in a SERIES circuit?

 There could be measurements or calculations on series circuits. If there is, it will just be simple addition or subtraction.

Besides knowing the symbol, what will the students need to know about diodes?

Know their effect on a circuit. They may have to identify it's use in a circuit, ie Will a bulb light or not. They may be asked to use on in a circuit.

Please confirm the schematic for normally open and normally closed switches? Specifically the arrow direction.

The arrow on a switch points in the direction of activation... So a Normally Open Switch will point from an open position to a closed position.

Will students need to know how to draw a schematic incorporating SPDT, DPST or DPDT switches?

Yes- there could be questions on SPDT, DPST, DPDT in the drawing section. You can see examples in the extravaganza handout.

Will there be questions on calculating Resistance, Current or voltage based on the data given or circuit diagrams?

Possibly - but it would only require addition and subtraction.No complex calculations (as in resistance of a parallel circuit)

Will the competitor need to memorize the resistor color code?

Yes. This year there will be some questions on the resistor color code

Can students bring a pre-constructed circuit tester or a multimeter?

They will be told specifically what piece of equipment to use at each station. The "Multimeter" Station and the "Build a Circuit Tester" Station have been separate stations for many years now to avoid confusion, so they would not have the option to construct a meter or use a multimeter at the same station. The Circuit Tester is never pre-constructed, but would have to be built by the students at that station.

The Mystery Cards card could be either at the "Multimeter" Station (the students would be instructed to use the Multimeter to answer the questions at that station)and/orthe "Build a Circuit Tester" Station (the students would be instructed to Build a Circuit Tester to answer any questions at that station).

Below is the Heading on Station #4 and Station #5 from the 2015 County Event:

Station #4 – Meters: Multiple Choice

Use the Meter & the Materials in the box to answer the questions

Station #5 – Circuit Tester

If necessary, build a Circuit Tester to answer the questions at this station

When calculating resistance, will the kids be required to calculate the tolerance value?

Example  submitted with FAQ:
if the resistance of a resistor is 15, with a tolerance of 10%, will they need to identify the resistance as 13.5 - 16.5 Ohms, or will 15 +/- 10% be sufficient?

 

Supervisor's response:

 

Your question would be broken down into 2 parts on the exam

     What is the resistance of the resistor shown? Answer 15 W

     What is the tolerance of the resistor shown? Answer +/- 10%

When calculating resistance, will the kids be required to calculate the tolerance value?

Example  submitted with FAQ:
if the resistance of a resistor is 15, with a tolerance of 10%, will they need to identify the resistance as 13.5 - 16.5 Ohms, or will 15 +/- 10% be sufficient?

 

Supervisor's response:

 

Your question would be broken down into 2 parts on the exam

     What is the resistance of the resistor shown? Answer 15 W

     What is the tolerance of the resistor shown? Answer +/- 10%

Will the resistors all be four band, or will it also include 5 band?

4 Band. 
I'm looking to see if the students understand the color code identification system.
The 5th band doesn't cover any new concepts and only adds some confusion for some students

Can you provide an example of a question they may have related to the resistor color code?

What is the resistance of the resistor shown below?

230 ohm resistor

     Answer: 230 Ω

What is the tolerance of the resistor shown above?

    Answer: +/- 2%

Will kids have to memorize resistor color codes?

I generally like to ease into a new topic. A color code chart will be at the station.

To maintain uniformity and fairness, the students are not allowed to bring any reference material or equipment. Everything they need will be provided.

My Charged-Up kit has a motor and propeller. Will motors be used at the tournament?

The motor and propeller are included in the Charged-Up Exploration Kits to add another interesting element to experiment with when learning about polarity and the effect of different voltages. (And it’s fun)
We WILL NOT be using a motor at the tournaments.

 

Click here to see the printed insert packed in the kit.