A collection of Resources for colour and light. I will source contributors and add a reference section at the end. Thanks to all those people who supplied resources.
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 PP3s
Do 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 foil
Kitchen 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
Scissors
Beware of sharp edges on scissors
Parcel tape or sellotape
This 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 use
Do NOT use your electrical kit near electrical sockets or electrical items.
Do NOT use near water and other liquids.
Static Experiments
Do 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.
Torch
If 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
Electric charge can be collected by rubbing two different surfaces together.
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.
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
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.
Circuit symbols are used to show how circuits can be built.
The circuit symbol for a cell, switch, bell, ammeter, voltmeter, lamp, power supply, resistor, wire, connected wire.
Make sure that you can draw circuits using the proper symbols and following the rules for drawing circuits.
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.