SHOCK VALUE
NM State Science Olympiad 2011
LED:NMSO Workshop
11/05/2010
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Event Parameters
• Students are allowed to use a nonprogrammable calculator. Computers are
not allowed.
• Each team may bring one 8.5” x 11” twosided page of notes that contain
information in any form from any source.
• The event supervisor provides any needed
equipment.
LED:NMSO Workshop
11/05/2010
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Competition Topics
1. Basic electrical DC circuit theory
concepts of voltage levels
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LED:NMSO Workshop
11/05/2010
current flow and direction,
electrical pathways,
volts, amperes, ohms,
schematics,
ohms law.
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Competition Topics
2. Basic electrical device concepts
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LED:NMSO Workshop
11/05/2010
battery polarity,
parallel vs. series
wiring of components,
light bulb and motor connections,
dry vs. wet cells.
No semiconductors will be used.
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Competition Topics
3. Basic electrical circuit construction/
analysis
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LED:NMSO Workshop
11/05/2010
switches,
power source,
voltmeter measurements,
light bulb/motor connections.
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Competition Topics
4. Basic magnetism concepts
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LED:NMSO Workshop
11/05/2010
North and South poles,
Earth's magnetic field,
Electromagnet principles,
magnetic vs. nonmagnetic materials,
magnet shapes/types.
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Competition Topics
5. Basic magnetic applications
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LED:NMSO Workshop
11/05/2010
use of a compass to determine
directions/poles of a magnet,
operation of an electromagnet,
use of magnets in motors.
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Changes from 2010
• Competition must have at least one task or question
from each of the five areas. The rules last year did not
have this requirement. The NM state competition had
tasks/questions from each of the five areas.
• Competition must consist of both hands-on tasks and
questions. Last year, the rules said “will consist.” The
NM state competition last year had both hands-on
tasks and question stations.
• The 2011 rules state “Topics that must not be included
in the competition are: semiconductors, AC circuit
theory and devices, capacitors, inductors”. None of
these were included in the competition last year.
LED:NMSO Workshop
11/05/2010
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Competition Format
• There are two competition times: one for Even and the
other for the Odd numbered teams.
• The competition will consist of at least six stations that
the teams rotate through. Each station focuses on one
of the five areas. Teams have 6½ minutes (depending
on the number of stations) at each station. They are
not permitted to return to a station.
LED:NMSO Workshop
11/05/2010
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Task/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.
LED:NMSO Workshop
11/05/2010
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Circuit Symbols
LED:NMSO Workshop
11/05/2010
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Series and Parallel Circuits
LED:NMSO Workshop
11/05/2010
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Constructing 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.
LED:NMSO Workshop
11/05/2010
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Ohm’s Law
V=IR
Potential difference:
V
volts
Current:
I
amps
Resistance:
R
ohms
LED:NMSO Workshop
11/05/2010
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Ohm’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
LED:NMSO Workshop
11/05/2010
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Voltage Measurement
LED:NMSO Workshop
11/05/2010
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