Download presentation
Presentation is loading. Please wait.
Published byCody Harrell Modified over 6 years ago
1
Electrify Your Day Mike and Paul With To The MAPs Team Presentation
Dr. M. H. Suckley & Mr. P. A. Klozik Visit our Website: (The MAPs Co.)
2
Acceptance of a New Concept
A widely accepted way to explain how learners adopt new understandings of phenomena is presented in the Conceptual Change Model (CCM)*. There are two major components to the Conceptual Change Model. The first component are the conditions that need to be met in order for a person to adopt a new understanding. There are three conditions leading to the adoption of a new concept. A learner has to: (1) become dissatisfied with their existing conception, (2) find the new conception intelligible, (3) find the new conception plausible and fruitful. The second component of the CCM is described as the status of the new conception. A conception has status when it meets any of the aforementioned conditions; however, the more conditions that the new conception meets, the higher the status the new conception obtains, and hence, a higher probability of being adopted. References *Posner, G.J., K.A. Strike, P.W. Hewson, and W.A. Gertzog Accommodation of a scientific conception: Toward a theory of conceptual change. Science Education 66: 7
3
NSTA Board Adopts New Position Statement on Laboratory Science
NSTA Board Adopts New Position Statement on Laboratory Science The NSTA Board of Directors has adopted a new position statement which reaffirms the central role laboratory investigations play in quality science instruction. “for science to be taught properly and effectively, labs must be an integral part of the science curriculum.” The new statement replaces Laboratory Science, which was adopted in 1990.
4
Example Prices for Circuit Boards
Example Prices for Circuit Boards AP6302 Simple Circuits Kit $37.10 Simple Circuits Kit AP6302 Each for $43.05 AP6302 Simple Circuits Kit $37.10 Average Price of Commercially made Circuit Board $ each 15934W2 Circuit Board $19.95 14718W2. Standard flashlight bulb $3.25 Pk. Of 10 Total Cost $21.00 4
5
Electricity I. Flowing or Current Electricity
A. Introduction B. Building The Simple Circuit Board C. Parallel Circuits D. Series Circuit D. Combined Circuit E. Conductors F. Fuses G. Diodes H. Resistors
6
Building the Simple Circuit Board - Materials
Magnets 2. 1 – Simple Circuit Card 3. 7 – Sticky Dots 4. 3 – Lamp Units – Paper Clip 6. 1 – Diode 7. 3 – 10 Ohm Resistors 8. Toothpick 9. Steel wool for Fuse 10. Red and Black Wire for Battery Connection 10
7
The Power Supply Polaroid Polapulse Battery The power supply can be any 6-volt DC source. This could be 4 AA batteries, a lantern battery or a transformer. We are using a battery pack obtained from a Polaroid film pack.
8
Building the Simple Circuit Board - Battery
Step 1: Wrap wire onto paperclips making two leads Step 2: Insert Paperclip Leads into Battery Polaroid Polapulse Battery
9
Building the Simple Circuit Board – The Simple Circuit Board
Parallel Circuit Series Circuit Combined Circuit
10
Building the Simple Circuit Board – Circuit Board Lamps
Christmas Light bulb Two Bent Paperclips and Light Bulb Heat Shrink Tubing Wire Wrapped Around P.C. Bend Paperclip 90 Degrees Completed Lamp Unit
11
Multimeters Amperage Voltage
12
Building the Simple Circuit Board - Magnets
1. Place Glue Dot on Back of Magnet. 2. Place Magnet on Circuit Board. 1
13
Building the Simple Circuit Board – Completed Parallel Circuit
1. Place Paperclips as Indicated. 2. Attach Lamp Units. 3. Attach Power Supply. Polaroid Polapulse Battery 3
14
Qualitative Characteristics of Electricity
1. Connect the battery and observe the lights. (number lit and brightness) 2. Describe the effect of moving bulb unit 1 just enough to break the circuit of the rest of the bulbs. 3. Describe the effect of moving bulb unit 2 just enough to break
15
Quantative Characteristics of Electricity
1. Volts - Pressure that cause the current to flow. The potential difference across a conductor in an electric field 2. Amperes - Rate of the current flow. One ampere is approximately equivalent to ×1018 electrons moving past a boundary in one second. Ohms - Resistance of the conductor (wire or hose) to the flow. A device has a resistance of one ohm if one volt causes a current of one ampere to flow. 4. Watts - Power produced due to the pressure and the flow of the electrons.
16
Parallel Circuits - Obtaining Voltage Data
3b - 3a 1b - 1a Power Source Master - 1a 1b - 3a 2b - 2a 4
17
Parallel Circuit – Voltage Data
Circuit Simulator Placement of Meter Voltage 1b – 1a 1 (1) 4.3 2b – 2b 1(2) 4.3 3b – 3a 1(3) 4.3 1b – 3a 1(1+2+3) 4.3 Power Source (Master - 1a) 4.3 Pattern observed: Voltage is constant in parallel circuits 5
18
Parallel Circuit – Obtaining Amperage Data
Bulb - 2b Bulb - 3b Master - 1b Bulb - 1b 3
19
Parallel Circuit - Data
Circuit Simulator Ammeter Placement Amperage Bulb – 3b 1(3) 0.20 Bulb – 2b 1(2) 0.21 Bulb – 1b 1(1) 0.21 Master – 1a 3(1+2+3) 0.60 Pattern observed: Amperage is additive in parallel circuits 5
20
Series Circuit 3 1. Place Paperclips as Indicated.
2. Attach Lamp Units. 3. Attach Power Supply. Polaroid Polapulse Battery 3
21
Series Circuits - Obtaining Voltage Data
1b – 1a 2b – 2a Power Source Master – 1a 1b – 3a 3b – 3a 4
22
Series Circuit – Voltage Data
Circuit Simulator Placement of Meter Voltage 1b – 1a 1(1) 1.6 2b – 2b 1(2) 1.6 3b – 3a 1(3) 1.6 1b – 3a 3(1+2+3) 4.8 Power Supply Master - 3a 4.8 Pattern observed: Voltage is additive in Series circuits 3
23
Series Circuit – Obtaining Amperage Data
Master – 1b 3
24
Series Circuit – Amperage Data
Circuit Simulator Placement of Meter Amperage Bulb – 3b 1(3) .157 Bulb – 2b 1(2) .156 Bulb – 1b 1(1) .156 Master – 1b 3(1+2+3) .156 Pattern observed: Amperage is constant in Series circuits 4
25
Completed Combined Circuit
+ 1. Place Paperclips as Indicated. 2. Attach Lamp Units. 3. Attach Power Supply. Series Circuit Polaroid Polapulse Battery Parallel Circuit 3
26
Combined Circuit - Obtaining Voltage Data
Master – 3b 1a – 3a Master – 3b 1a – 1b Master – 3b Power Source Master – 3b 2a -2b Master – 3b 3a – 3b 4
27
Combined Circuit – Voltage Data
Placement of Meter Voltage Circuit 1a – 1b 1(1) 4.9 Parallel 2a – 2b 2(2) 2.4 Series 3a – 3b 2(3) 2.4 Series 1b – 3a (2+3) 4.9 Combined Power Source Master – 1a 4.9 Combined Note that in series circuit the voltage is additive ( = 4.8) and in parallel circuits it is constant. Therefore the circuit voltage would be 4.8. 5
28
Combined Circuit - Obtaining Amperage Data
Master – 1b 1b – 3a 3
29
Combined Circuit – Amperage Data
Placement of Meter Amperage Circuit Bulb – 3a 1(3) 0.16 Series Bulb – 2a 1(2) 0.16 Series 1b – 3a 2(2+3) 0.16 Series Bulb – 1b 1(1) 0.27 Parallel Master – 1b 3(1+2+3) 0.44 Combined Remember in series circuits amperage is constant and in parallel circuits it is additive. Therefore if we add the amperage for the series circuit to the amperage for the parallel circuit we should get the amperage for the entire circuit. ( = 0.43) 5
30
Conductors 1 1. Place Paperclips as Indicated. 2. Attach Lamp Unit.
3. Insert paperclips into indicated solutions. 4. Attach Power Supply. Red (2.5% NaCl) Green ( 0.5% Sugar) Blue (10.0% NaCl) Clear (Distilled Water) 1
31
Fuses 1. Place Paperclips as Indicated. 2. Attach Lamp Unit.
3. Obtain a strand of steel wool and place it as indicated. 4. Attach Power Supply.
32
Diodes 1. Place Paperclips as Indicated. 2. Attach Lamp Unit.
3. Insert Diode. 4. Attach Power Supply. 5. Note orientation of diode, end marker, and switch the diode.
33
Resistors in Parallel 1. Place Paperclips as Indicated.
2. Attach Lamp Unit. 3. Insert resistors 1, 2 and 3 as indicated. 4. Attach Power Supply.
34
Thank You! We Had A Great Time
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.