SUPPLY NOTE – THURSDAY AND FRIDAY – Tanks again Chris!!
THURSDAY NOVEMBER 13
TIME: 25 Minutes
TOPIC: Cells in Series and Parallel
LEARNING GOAL: Students will be able to predict how current or potential changes depending on whether cells are connected in series or in parallel
LESSON/MEDIA:
Demo on front desk using circuit equipment while students complete in groups
Demo on gizmos for quantitative accuracy
1) Students will set up a simple series circuit with 2 light bulbs and connect 3 batteries, first in series(+ of one conencts to - of the next) then in parallel (connect all the + of each together then all the - of each together)
2) Students will develop a qualitative statement about how the brightness of the bulbs changes as more batteries are added in series and parallel. Add this to their notes!
3) Students then use an ammeter in series with the bulbs and a voltmeter actoss the batteries to determine how the current and potential of the circuit changes when the cells are in series vs parallel.
4) Students will write a conclusion about the quantitaive relationship fo these properties and the setup of the cells.
HANDOUTS: none
WORKSHEETS: none
TEXT REVIEW:
10.5 - Building a simple Wet Cell
10.6 Batteries - Combinations of Cells
10.7 Cells in Series and Parallel
VDG DEMO - Guest Teacher will show you what the Van DeGraff generator is, how charges build up and how you can insulate yourself from conducting a charge.
And just what IS the chain of pain??
FRIDAY NOVEMBER 14, 2014
PART 1 -
TIME: 45 min
TOPIC: Producing Electricity
LEARNING GOAL: By the end of this lesson I will be able to describe how electricity is produced through a variety of sources and the energy conversions that take place along the way.
LESSON/MEDIA:
1 - Faraday Demonstration Producing Electricity (use model from physics room with 3 coils of wire and built in voltmeter) This can be sketeched on the board for addition to student notes. A cause and effect chain (kinetic energy from falling water is converted into mechanical energy of a moving turbine which makes magnetic energy as the magnet turns….) is also useful to model for the students.
2 - PHet Demos - http://phet.colorado.edu/en/simulation/faraday Faraday's Electromagnetic Lab
Use 1&2 to help students understand how electricity can be produced through the movement of wire through a magnetic field.
3 - start video from Nature of Things(Earth Energy) on sources of energy - link to this video on Mr. Clark's Electricity Webpage - http://digital.films.com/play/TBY6QY
HANDOUTS: NONE
WORKSHEETS: NONE
TEXT REVIEW:
READ - 11.2, 11.3
PART 2 – Ohms Law Practice
Teacher to demonstrate on the board how resistance can be found when given current and potential. How current or potential can be found if given the other two properties!
Practice questions for students: "Ohms Law Practice"
https://docs.google.com/document/d/1E5ob78skiNp7BXZQypTF9VSSnsyzFIYhmLLbchZSh1c/edit?usp=sharing
If students complete this, they can also do circuit diagrams with Ohms Law calculations included in the supply folder -
"Exploring current and voltage in series and parallel circuits" - https://drive.google.com/file/d/0Bx61DkORzMlfejlGZmN1SW41Qjg/view?usp=sharing