* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download possible questions - Merrillville Community School
Survey
Document related concepts
Electrical substation wikipedia , lookup
Stepper motor wikipedia , lookup
Electrical engineering wikipedia , lookup
Mechanical-electrical analogies wikipedia , lookup
Voltage optimisation wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Current source wikipedia , lookup
Surge protector wikipedia , lookup
Alternating current wikipedia , lookup
Stray voltage wikipedia , lookup
Mains electricity wikipedia , lookup
Buck converter wikipedia , lookup
Opto-isolator wikipedia , lookup
Galvanometer wikipedia , lookup
Transcript
SHOCK VALUE 2012 Science Olympiad Coaches Clinic Indiana University Northwest James D. Wozniewski, presenter 1 DESCRIPTION A TEAM OF TWO (2) STUDENTS (GRADES 6-9) WILL COMPETE IN ACTIVITIES THAT INVOLVE BASIC UNDERSTANDING OF ELECTRICITY, MAGNETISM, AND SIMPLE ELECTRICAL DEVICES. 2 TERMS BATTERY CURRENT FLOW ELECTRON FLOW AND DIAGRAMS SCHEMATICS 3 PARTICIPANTS ARE ALLOWED NOTES AND/OR CALCULATORS. NOTES WILL BE SECURED IN A 3 HOLE BINDER CALCULATORS WILL NOT HAVE ANY PROBES OR SENSORS ATTACHED TO THEM 4 EVENT SUPERVISORS PROVIDE ANY NEEDED MEASUREMENT EQUIPMENT 5 THE COMPETITION 50% HANDS ON 50% THEORETICAL SUPERVISORS TO PRESENT DATA MEASUREMENT EQUIPMENT OR PROVIDE A DEMONSTRATION WITH DATA IN TABULAR OR GRAPHIC FORMAT 6 SUPERVISOR MAY PROVIDE MATHEMATICAL RELATIONS, BUT STUDENT ARE EXPECTED TO NOTE THE FOLLOWING: BASIC ELECTRICAL DC CIRCUIT THEORY CONSISTING OF CONCEPTS OF VOLTAGE LEVELS CURRENT FLOW AND DIRECTION ELECTRICAL PATHWAYS VOLTS, AMPERES, OHMS, SCHEMATICS OHM’S LAW 7 BASIC ELECTRICAL DEVICE CONCEPTS BATTERY POLARITY PARALLEL VS SERIES CIRCUITS RESISTOR LIGHT BULB AND MOTOR DRY VS WET CELLS 8 BASIC ELECTRICAL CIRCUIT CONSTRUCTION AND ANALYSIS SWITCHES POWER SOURCE VOLTMETER MEASUREMENTS LIGHT BULB/MOTOR CONNECTIONS KITCHEN BUILT BATTERIES 9 BASIC MAGNETISM CONCEPTS NORTH AND SOUTH POLES EARTH’S MAGNETIC FIELD ELECTROMAGNET PRINCIPLES MAGNETIC VS NONMAGNETIC MATERIALS MAGNET SHAPES AND TYPES 10 BASIC MAGNETIC APPLICATIONS USE OF COMPASS TO DETERMINE POLES OF A MAGNET OPERATION OF AN ELECTROMAGNET USE OF MAGNETS IN MOTORS 11 TOPICS THAT MUST NOT BE INCLUDED 1. SEMICONDUCTORS 2. AC CIRCUIT THEORY AND DEVICES 3. CAPACITORS 4. INDUCTORS 12 13 EXAMPLES OF STATIONS SUPERVISOR PROVIDES THE FOLLOWING COMPONENTS: • WIRES • BATTERIES • LIGHT BULBS • RESISTORS PARTICIPANTS ARRANGE AND WIRE COMPONENTS IN SUCH A MANNER TO PRODUCE THE BRIGHTEST BURNING BULB 14 EXAMPLES OF QUESTIONS PARTICIPANTS WILL DRAW THE CIRCUIT DIAGRAM (SCHEMATIC) OF THE PREVIOUS EXERCISE LABELS WILL INCLUDE THE FOLLOWING; 1. RESISTANCE 2. VOLTAGE & POLARITY 3. CURRENT FLOW 4. ELECTRON FLOW PARTICIPANTS WILL PROVIDE A WRITTEN DESCRIPTION AS TO WHY THIS IS THE OPTIMAL COMPONENT CONFIGURATION. 15 SCORING POINTS WILL BE AWARDED FOR CORRECT ANSWERS AND/OR PROPER TECHNIQUE TIES WILL BE BROKEN USING A DESIGNATED QUESTION OR TASK. THE TIE BREAKER WILL BE DESIGNATED ON THE ANSWER FORM 16 BLOCK DIAGRAM D C X1 A X4 X7 X2 X3 X5 X6 X8 B X9 X10 17 POSSIBLE QUESTIONS X1 VALUE i. X2 100 OHM 100 OHM X3 X4 X5 100 OHM 300 OHM OPEN X6 200 OHM X7 500 OHM X8 OPEN X9 100 OHM X10 12 VDC REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT DIRECTION (SCHEMATIC) IS THE CURRENT FLOW INDICATED BETWEEN POINTS C & D IF THE POSITIVE BATTERY POINT IS LOCATED TO THE LEFT? C TOWARDS D OR D TOWARDS C 18 POSSIBLE QUESTIONS X1 VALUE 100 OHM X2 100 OHM X3 X4 X5 100 OHM 300 OHM OPEN X6 200 OHM X7 500 OHM X8 OPEN X9 X10 100 OHM ZERO ii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE RESISTANCE MEASURED AT POINTS A & B? 19 POSSIBLE QUESTIONS X1 VALUE 100 OHM X2 0 OHM X3 X4 0 OHM 0 OHM X5 300 OHM X6 0 OHM X7 0 OHM X8 0 OHM X9 100 OHM X10 ZERO ii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE RESISTANCE MEASURED AT POINTS A & B? 20 POSSIBLE QUESTIONS X1 VALUE 100 OHM X2 0 OHM X3 X4 0 OHM 0 OHM X5 300 OHM X6 0 OHM X7 0 OHM X8 0 OHM X9 100 OHM X10 24VDC RIGHT + iii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE VOLTAGE MEASURED AT POINTS A & B? 21 POSSIBLE QUESTIONS X1 VALUE 100 OHM X2 0 OHM X3 X4 0 OHM 0 OHM X5 300 OHM X6 0 OHM X7 0 OHM X8 0 OHM X9 X10 100 OHM 24 VDC RIGHT + iii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE VOLTAGE MEASURED AT POINTS C & D? 22 POSSIBLE QUESTIONS VALUE X1 X2 X3 X4 0 OHM 100 OHM 0 OHM 0 OHM X5 300 OHM X6 0 OHM X7 0 OHM X8 0 OHM X9 X10 100 OHM 24 VDC RIGHT + iii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE VOLTAGE MEASURED AT POINTS C & D? 23 POSSIBLE QUESTIONS VALUE X1 X2 X3 X4 0 OHM 100 OHM 0 OHM 0 OHM X5 300 OHM X6 0 OHM X7 0 OHM X8 0 OHM X9 X10 100 OHM 24 VDC RIGHT + iii. REFER TO THE BLOCK DIAGRAM AND THE ABOVE TABLE: WHAT IS THE CURRENT MEASURED AT POINTS C & D? 24 POSSIBLE QUESTIONS iv. COMPLETE THE FOLLOWING TABLE: MAGNETIC NON MAGNETIC STEEL IRON COPPER ZINC ALUMINUM COTTON WOOL POLYETHYLENE NICKEL GOLD 25 v. IDENTIFY THE POLES A & B IN THE FOLLOWING DIAGRAM AND CIRCLE THE CORRECT ANSWERS: A BAR MAGNET B N A = NORTH POLE A = SOUTH POLE B= NORTH POLE COMPASS B= SOUTH POLE 26 PLEASE HELP with my grand daughter's science fair project! She needs parents, teachers, and students to take her online quiz. PLEASE take the online quiz at https://www.surveymonkey.com/s/L77RJKX and ask everyone you know to take it, too? 27