Electricity ONLINE

It looks like some of you are going to be doing the electricity unit online. This is tricky but we’ll try to do as much practical as possible.

Please read the RISK ASSESSMENT IF WORKING FROM HOME

Risk Assessments S1 Electricity.xlsx

Hazard Control Measures
Rechargeable Cells or PP3sDo not use rechargeable cells, lithium batteries or PP3s (the flat ones) for your own electrical kits as they have low internal resistance and could cause a high current.
Use only 1.5 V cells and zinc chloride are safer than alkaline.
Dispose of these as instructed on the packet once they no longer work. (they should be fine for the whole block)
Don’t use cells that have leaked- they must not be emitting a liquid or a powdery substance.
Only use a maximum of 2 x 1.5 V cells at a time.
Kitchen foilKitchen foil boxes usually have a sharp edge to cut the foil. Ask a grown up to tear you some off if there is a chance you can cut your finger
ScissorsBeware of sharp edges on scissors
Parcel tape or sellotapeThis can be very sticky and pose a risk to pets or young children, ask a grown up to help tape off the home made wires or complete the task well away from young children and pets.
Electrical kit useDo NOT use your electrical kit near electrical sockets or electrical items.
Do NOT use near water and other liquids.
Static ExperimentsDo NOT do your static experiements near electrical sockets or electrical items.
Balloons can cause a shock to children and pets if they burst so don’t over blow them or use sharp finger nails. Warn young children and keep away from pets.
TorchIf you take apart a torch do not lose any small parts that can be a choking hazard. Do not use LED torches. Make sure the cells in the torch haven’t leaked. You will know if they have as there will be a white powder or liquid.

These are the Video Links to the S1 Electricity Ohm Comforts Videos

  1. Introduction https://youtu.be/__7iAV0WPTc
  2. The Atom https://youtu.be/xOGDBiwPKrg
  3. Electrical Safety https://youtu.be/rg0dg25Tqdw
  4. Static Electricity Experiments https://youtu.be/CqmfXYXPah4
  5. The Van de Graaff Generator https://youtu.be/VLyMM7oDu6M
  6. How to Light a Light Bulb https://youtu.be/jJF2-mLtMI4
  7. Conductors and insulators https://youtu.be/24SzwO_3Wx4
  8. Setting up a Multimeter https://youtu.be/CCgr2NpjEso
  9. Using Multimeters https://youtu.be/sIwWpmbjjqM
  10. Definitions https://youtu.be/xostmRgwtM0
  11. Drawing Circuit Symbols https://youtu.be/zQ6g9nxY96U
  12. Wrong circuit diagrams https://youtu.be/4oaNdtgbu2E
  13. Series Model https://youtu.be/5C71R3rCaOA
  14. Parallel Model https://youtu.be/8MOEKDwhRCM https://youtu.be/xxdToredFYI
  15. Building circuits https://youtu.be/5NpBHqk4FM0
  16. I and V in Series circuits using Phet https://youtu.be/xSMuqn5f-2o
  17. I and V in Parallel circuits using Phet https://youtu.be/r8lrZ-0R-Vc
  18. Current and Voltage questions
  19. Fruity Batteries https://youtu.be/oAASyq0EUwc

Lesson 1
Introduction to Ohm Comforts

You should know that:

Electrical Safety
  1. Electrical energy can be dangerous.
  2. Recognise some of the dangers of electricity in the home and outside.
Atoms
  • All objects are made up of small particles called atoms.
  • Inside each atom there are three small particles called neutrons, protons, and electrons.
  • A proton has a positive charge.
  • An electron has a negative charge.
  • A neutron is neutral or uncharged.

Watch the intro video clip for our Electricity Unit.

The Introduction Video for the S1 Electricity Block

Watch the two video clips on Electrical Safety.

Electrical safety undated for UK. It does claim about 30 lives a year in the UK so don’t let it be you. Be safe around electricity!

OK so if I’d been really time rich I would have redone the audio but this is the best I can do whilst teaching 24 periods per week.

The video below is the UK version of safety in the home.

http://www.twothirtyvolts.org.uk/electrical-safety/around-your-home.html

List 10 things to be aware of to be Electrically Safe, eg don’t put knives into toaster.

Atoms- what are they?

Watch the video -The Atom, write out the passage at the end of the video. Check your answers using the wordwall game (link below)

A video covering one Model of the Atom, ending in a cloze passage.

Check whether you have filled in the answers correctly by trying the wordwall

Draw the diagram of the Model of the Atom or print it out, stick it in and label it.

A Model of the Atom, please label this. NUCLEUS, PROTON, NEUTRON, ELECTRON, ELECTRON SHELL, POSITIVE CHARGE, NEGATIVE CHARGE, NO CHARGE
Click on this sheet so that you can open the document.
Lesson 2
Static Experiments

You should know

How to make Electricity.
  1. Electric charge can be collected by rubbing two different surfaces together.
  2. A Van de Graff Generator produces electric charges.

Check your answers from last lesson on the atom using the wordwall game. Review the work to make sure you could label a model of the atom.

Answer the microsoft Form on the Atom.

Static Electricity

Watch this video on static experiments. Try these at home and pop a picture in the comments of how you get on.

Watch the clips on the Van de Graaff Generator, it is just an effective way of collecting charge. There are instructions to make your own in the electrity notes in another post.

Mrs Physics has a hair raising experience for you during lockdown

Try some of these experiments. NB styrofoam means polystyrene in the UK and try a plastic ruler if you haven’t got plastic pipe.

Here are the individual videos of the static experiments

Polythene and acetate rods do they attract or repel?
Two polythene rods do they attract or repel?
Can you pick up toilet tissue (unused please) using a charged plastic rod?
Bending a fine stream of water/ liquid using a charged rod or charge plastic ruler. If you do this in the bathroom with a fine stream make sure you don’t have a carpet! It’s easier for boys to do this as they stand!
Separating salt and pepper.
Charged balloons
Lesson 3 and 4
Lighting a bulb and making your own electrical kit! (or breaking up your old torch)
Conductors and Insulators

Watch the video How to Light a Bulb

Watch the video clip about Making your own Electricital Kit. Try making your own electrical kit and post some photos.

Watch the video clip to improve your circuit and try to put a switch in your own circuit if you make one.

Now use your circuit to test materials for conductors and insulators. Instructions are in the clip below. Don’t forget to record your results in the table shown.

A conductor is a material with free electrons that allows electrons through it. An insulator is a material where additional electrons cannot pass through.

Testing for Conductors and Insulators using your homemade electrical kit

TESTING FOR CONDUCTORS AND INSULATORS

Lesson 5
Drawing Circuit Symbols

You should know

Drawing Circuits.
  1. Circuit symbols are used to show how circuits can be built.
  2. The circuit symbol for a cell, switch, bell, ammeter, voltmeter, lamp, power supply, resistor, wire, connected wire.
  3. Make sure that you can draw circuits using the proper symbols and following the rules for drawing circuits.
Lesson 6
Multimeters

You should know

  1. A multimeter can be set up to measure current, resistance or voltage.
  2. When a multimeter is set up to measure current we call it an ammeter.

Resistance

  • Some materials have a high resistance and make it difficult for current to flow.
  • A continuity tester can be used to test for conductors and insulators.
  • Resistance is a measure of how difficult it is for the charges to move through an object.
  • The longer a wire the higher the resistance of the wire.

Voltage.

  • For most materials, as you increase the voltage the current increases.
  • Potential difference (p.d.) is often called voltage.
  • p.d. is the push that makes the charges move around a circuit.
  • Voltage is measured in volts.
  • Voltage is measured using a voltmeter, symbol V
  • Voltmeters are connected in parallel.

Watch the videos and answer the questions in the forms!

Lesson 7
Electrical Definitions

You should know

  • When electric charge moves we call it an electric current.
  • Current is a flow of charge (or electrons) around a circuit.
  • Materials that allow current through them are called electrical conductors.
  • Materials that do not allow current through them are called electrical insulators.
  • We use the symbol I to represent current.
  • Current is measured in amperes or amps.
  • Current is measured using an ammeter.
  • Ammeters are connected in series.
  • The symbol for an ammeter     
  • For electrons to flow there must be a complete circuit.
  • A multimeter can be set up to measure current, resistance or voltage.
  • When a multimeter is set up to measure current we call it an ammeter.
  • A multimeter can be set up to measure current, resistance or voltage.
  • When a multimeter is set up to measure current we call it an ammeter.
  • Some materials have a high resistance and make it difficult for current to flow.
  • A continuity tester can be used to test for conductors and insulators.
  • Resistance is a measure of how difficult it is for the charges to move through an object.
  • The longer a wire the higher the resistance of the wire.
Voltage.
  • For most materials, as you increase the voltage the current increases.
  • Potential difference (p.d.) is often called voltage.
  • p.d. is the push that makes the charges move around a circuit
  • Voltage is measured in volts.
  • Voltage is measured using a voltmeter, symbol V
  • Voltmeters are connected in parallel.

Use the video to fill in the table of definitions

AmmeterChargeCircuitConductor
Continuity testerCurrentInsulatorMultimeter
OhmmeterParallel circuitPotential DifferenceResistance
Series circuit The effects of a currentVoltageVoltmeter
TermDefinition
the difference in the amount of energy that charges have between two points in a circuit.
electrons passing through a circuit
a meter to measure many different electrical quantities
a meter to measure resistance
a meter to measure voltage
a meter to measure current
a complete path for the current to follow
the quantity of unbalanced positive or negative ions in or on an object
the push that makes the charges move around a circuit
a material that free electrons can’t pass through
a material that free electrons can pass through
heat, light, magnetism and chemical effects
A circuit to test whether something is a conductor or an insulator, or to find faults in circuits
a circuit with more than one path for the current to follow
a circuit with only one path for the current to follow
is a measure of how difficult it is for a current to move through an object
Lesson 8
Building Circuits
Lesson 9
Modelling Series Circuits and Predicting Current and Voltage in a series circuit.
Series and Parallel Circuits
  1. The two types of circuit are called series and parallel.
  2. In series circuits the current is the same all round the circuit.
  3. In series circuits the voltage across the components adds up to give the voltage of the supply.

Watch the video, it takes you through a model to help us explain series circuits and the rules for current and voltage in a series circuit.

Lesson 10
Modelling Parallel Circuits and Predicting Current and Voltage in a Parallel circuit.

You should know

Series and Parallel Circuits

You should know that

  1. The two types of circuit are called series and parallel.
  2. In parallel circuits the current splits up and some goes down each branch.
  3. In parallel circuits the voltage is the same across each branch.
  4. The current drawn from the supply increases the more components are connected in parallel.
  5. When lamps are added in parallel the current drawn from the supply increases. This is because the overall resistance of the circuit is reduced.

The Parallel Model.

Watch the video and draw your own Town called Parallel Circuit

Note down what you expect then try things out of the Phet.

Lesson 11
Current and Voltage with Series and Parallel Circuits

You should know

Series and Parallel Circuits
  1. The two types of circuit are called series and parallel.
  2. In series circuits the current is the same all round the circuit.
  3. In parallel circuits the current splits up and some goes down each branch.
  4. In series circuits the voltage across the components adds up to give the voltage of the supply.
  5. In parallel circuits the voltage is the same across each branch.
  6. The current drawn from the supply increases the more components are connected in parallel.
  7. When lamps are added in parallel the current drawn from the supply increases. This is because the overall resistance of the circuit is reduced.

The current in series and parallel is a word version of the instructions for the videos above on setting up the Phet to check the rules for current and voltage in a series circuit. It would also be a great introduction to resistance

The current and voltage questions are based on the questions produced by Mr Belford and cover identifying current and voltage readings with series and parallel circuits.

Lesson 12
Fruity Batteries.

You should know

  • How to design simple chemical cells and use them to investigate the factors which affect the voltage produced.

https://www.stevespanglerscience.com/lab/experiments/fruit-power-battery/

Resources for the electricity topic

Here are the resources for the S1 Electricity Topic. Click on the link and open the pdf file that you want. The homeworks are highlighted in bold.

S1. introduction to Physics  This is the print out of your first Physics lesson. Hopefully you can talk it through with your family and friends and inspire them to study Physics with you. It is based on the Activinspire file used in school.

1. outcomes This is a full list of outcomes that you need to learn for the test at the end of this unit. The outcomes should be stuck into your jotter. You can print another set to make flashcards or for your friends and family to help you revise by testing you.

1b. ORDER

This is one order that we might be using to go through the course. This means if you miss a lesson then you can use this sheet to find out what you missed and catch up. Remember you need to take responsibility for your learning.

2. intro electricity  This is the background to the course. We are going to be treating you like apprentice electricians. If you get through the course then you can make some electrical items for the doll’s house. That information is contained in another post.

2. electrical safety Here is information and websites to help you discover how to be safe around electrical energy. Please discuss this with family and friends so that you don’t put yourselves, family and friends at risk.

The video below comes from the website.

http://www.twothirtyvolts.org.uk/ It is in the Electrical Hazards Section

If you’re caught out in a thunderstorm and you can’t get to a safe place (which is never near a tree anyway), then assume the lightning position given below. Do practice this and be ready for an emergency, but choose your place carefully. You’ll look quite odd! If you’re on a golf course get away from your golf clubs, you can retrieve these later.

3. the atom (homework)2018        This is one of the first bits of homework you will need to complete. Either write out the passage in your jotter and draw a diagram of an atom, or print out the sheet, stick it in your jotter and fill it in.

Atom cut out

4a. Static expt sheets These are some of the experiments that you will do in the classroom. Many can be done at home using a comb or a ruler. Try them out with family and friends.

4c. Build a VdG If you enjoyed using the Van der Graaff Generator in school, why not have a go at building your own. In this document we take you through the process step by step in picture form. You must get adult supervision to do this.

see the original link to Bald man on VdG/

5. Conduct insulate faults This contains work we will be covering in class about conductors, insulators, fault finding and resistance.

5. Resistor code With this document you’ll be able to identify the resistance of a resistor marked with a colour code. It is the universal way that resistors are identified.

6. Draw circuit symbols (homeworkThis is the drawing symbols homework. Either write out the symbols with the * and label them or print out the document and stick it in your jotter. You then need to learn these symbols. If you want to you can record the uses and comments and earn a merit.

6b Symbols only (homework) Drawing symbols homework. This is the homework for those students who find following the full document difficult. It is the cut down version of the sheets above.

7. Meters This tells you information on how to use a multimeter and set it up as an ammeter, voltmeter and ohmmeter. Why not add one to your Christmas present list and help around the house. DO NOT use them with mains electricity though.

7. Meters cut out These diagrams should go into your jotter so that you know how to set up your multimeter.

7. Using Meters 2016 pdf file of the activinspire sheets used in class. There are six slides to a page so you can print out and stick in if you want.

7c. Meters quiz Test your knowledge of meters with this quiz.

8 Drag and Drop Definitions Use this to practice learning your definitions, it is a pdf version of the Activinspire file used in class.

8c. Flashcards VIR If you want to make your own flashcards print these out 16 to a page. That should give you a page of terms and a page of definitions. If you stick the definition on the back then it ought to make great flashcards. Or you can copy and cut out your own. Check the correct definitions in the table below.

8. Find the Definitions This is a literacy task. If you read through the sheets you should find the definitions of 15 out of 16 terms. The one left over on your flashcards is the one not included in the definition sheet.

8f definitions in table Here are the definitions for you to check your answers.

9. Fault finding Often, when you build an electrical circuit, it doesn’t work the first time: here is a list of common mistakes students make so that you can find out why your circuit isn’t working and fix it yourself.

10c. series and parallel model Here is a model to help you understand the topic. It ought to explain series and parallel circuits.

Model help ASN

17 revision electricity dominoes (homework) 

This is a homework task for you to use to revise what you’ve learned during this block. You ought to be able cut out the 10 dominoes and match them up into a circle, so the answer of the last domino becomes the question for the first domino.

33. fruity batteries Produce some electrical energy from your fruit. Could you do this at home? What is the best fruit and veg and what are the best electrodes?

18.current and voltage in series & parallel Here are a set of results from the current and voltage in series and parallel experiments that you’ll complete in class. You can use these results if you missed the lesson.

18b.V I s&p blank This is a blank version of the current and voltage measurement in series and parallel. Print it off, fill it in and stick it in your jotter after you’ve worked out the four conclusions.

31. Ohms Law For those that have time or who have moved through the course quicker than most, here is an additional practical that you can try for level 4 BGE.

…and for your revision try a few of the following files.

Millionaire S2 elec3 play with a friend or a relative. This is a massive file so might not download for some of you.

ELECTRICITY Pupil Profile Statements Use these statements to help you fill in your profile logs.

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Revision for the Electricity Topic

Click on the links to take you to some revision items for your Electricity Test.

Series and Parallel Test

Electric Current and Voltage Test

Practical Circuits Test _ for the really good!

Electricity Revision Quiz– this is an Activinspire presentation that your teacher might use, but as most of you wont have that package I’ve saved it as a pdf. file. It isn’t very interactive this way but hey ho!

Going Further

If you’ve enjoyed this topic, but it just wasn’t deep enough or long enough then you might want to go deeper. Try the following site, but remember in Scottish Physics we teach electron flow and not conventional current. You can read about that in one of the blog sections.

Going deeper with the electronics club

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Teacher Materials Electricity

Teachers Guide v2 Here is the pdf version of the Teacher notes that we will be using during the S1 Physics course. If you miss a lesson then use this guide to help you out.

Teachers, you’re most welcome to use this material, although a credit for MrsPhysics or Lockerbie Academy would be appreciated. If you require a word version, please get in touch through the comments box.

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Background Documents to Ohm Comforts

Rather than the usual way of teaching the topic of electricity we’ll take a novel approach. All the staff here hope that you’ll enjoy it. Do feedback to your teacher what you think about it. Unfortunately with the new time schedule we don’t have as long as we hoped on this topic and some of the material might need to be completed at home or in Science Club, including the additions to the Dolls’ House. Do take time to make something special, so far we’ve had examples of people making lit and turning BBQs, turning microwaves, lit fridges, and a fitness suite.

Intro electricity  This document introduces you as Apprentice Electricians and gives the reason behind the title ‘Ohm Comforts’.

Terry & June The owners of the house which you’ve been charged with fixing.

Estate Agent particulars Details of the house that needs your skills to upgrade.

Estate Agent single Signs for the house should a teacher wish to make their own house.

BADGE When you’ve passed your apprenticeship you’ll be entitled to wear the badge.

Ripe for some Ohm Comforts

How could you add electrical items in here?

How could you improve this room?

Ohm Comforts

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