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SHOCK VALUE

SHOCK VALUE. NM State Science Olympiad 2013. SHOCK VALUE Event Parameters. Students are allowed to use any notes and/or calculators. Notes must be 3-hole punched and secured in a 3-ring binder of any size. Calculators cannot have any attached external probes or sensors.

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SHOCK VALUE

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  1. SHOCK VALUE NM State Science Olympiad 2013

  2. SHOCK VALUEEvent Parameters • Students are allowed to use any notes and/or calculators. • Notes must be 3-hole punched and secured in a 3-ring binder of any size. • Calculators cannot have any attached external probes or sensors. • The event supervisor provides any needed equipment. • Students may bring and use their own basic multimeters in place of event supervisor supplied ones.

  3. SHOCK VALUECompetition Topics • Basic electrical DC circuit theory concepts of voltage levels • current flow and direction, • electrical pathways, • volts, amperes, ohms, • schematics, • ohms law.

  4. SHOCK VALUECompetition Topics • Basic electrical device concepts • battery polarity, • parallel vs. series • wiring of components, • light bulb and motor connections, • dry vs. wet cells. • No semiconductors will be used.

  5. SHOCK VALUECompetition Topics • Basic electrical circuit construction/ analysis • switches, • power source, • voltmeter measurements, • light bulb/motor connections.

  6. SHOCK VALUECompetition Topics • Basic magnetism concepts • North and South poles, • Earth's magnetic field, • Electromagnet principles, • magnetic vs. nonmagnetic materials, • magnet shapes/types.

  7. SHOCK VALUECompetition Topics • Basic magnetic applications • use of a compass to determine directions/poles of a magnet, • operation of an electromagnet, • use of magnets in motors.

  8. SHOCK VALUE • Competition must have at least one task or question from each of the five areas. • Competition must consist of both hands-on tasks and questions. • 50% of the score must be from hands-on tasks and 50% must be from the theoretical portion. • The event supervisor may provide some mathematical relationships. • Topics not included in the events are semiconductors, AC circuit theory and devices, capacitors, or inductors.

  9. SHOCK VALUECompetition Format • There are two competition times: one for Even and the other for the Odd numbered teams (12 or 13 teams are competing in each time slot). • The competition will consist of six to seven stations through which the teams rotate. • There are at most two teams working at each station. • Each station focuses on one of the five areas. • Teams have about 6 minutes (depending on the number of stations) at each station. They are not permitted to return to a station.

  10. SHOCK VALUETask/Question Examples • Build a specified circuit. • Identify parallel or series circuits. • Measure voltage in a circuit. • Identify circuit symbols. • Questions about magnets. • Identify North and South poles of a magnet.

  11. SHOCK VALUECircuit Symbols

  12. SHOCK VALUESeries and Parallel Circuits

  13. SHOCK VALUEConstructing Electrical Circuits • Construct a series circuit containing a battery, light bulb, and switch. • Construct a parallel circuit containing a battery, two light bulbs, and switch.

  14. SHOCK VALUEOhm’s Law V = I R Potential difference: V volts Current: I amps Resistance: R ohms

  15. SHOCK VALUEOhm’s Law Ohm’s law states that current is inversely proportional to resistance How much current flows through a lamp that has a resistance of 60 ohms when 12 V is connected across it? I = V/ R I = 12 V / 60 ohms = 0.2 amps

  16. SHOCK VALUEVoltage Measurement

  17. SHOCK VALUEStation Schedule Example

  18. SHOCK VALUE QUESTIONS?

  19. SHOCK VALUE ACTIVITIES Build a circuit Measure voltage with a multimeter

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