Electricity Practical

Electricity Practical - Topic 7 - Electricity Electricity...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Topic 7 - Electricity Electricity • Charges • Electrons • Voltage • Current • Series • Parallel • Resistance The slides are designed to tie in with a set of worksheets, but could be adapted or serve as a template for other teachers Topic 7 page 1 4. I charged up a plastic comb by When I put the charged-up comb near some foil rubbing it with a rubbing it with a duster/pulling it through my hair duster/pulling it through my hair the foil jumped up to stick to the the foil jumped up to stick to the comb comb Topic 7 page 2 Item Item What it was What it was rubbed on rubbed on Did the bits of Did the bits of foil move? foil move? Plastic comb hair Plastic ruler hair Plastic bag cloth Wooden ruler cloth Plastic pen cloth Metal spatula cloth yes yes yes no yes no Topic 7 page 3 The electroscope Stop! Topic 7 page 4 Object Charged Object Charged Effect on Gold Leaf Effect on Gold Leaf Plastic comb Plastic rod Plastic bag Plastic ruler Rises up Rises up Rises up Rises up If an uncharged object is brought near an electroscope the gold leaf If a charged object is brought near an electroscope the gold leaf doesn’t move. rises up. Topic 7 page 6 Pulling and Pushing Pull together Charged object 1 Charged object 1 Charged object 2 Charged object 2 What happened? What happened? Comb Cling film Cling film Cling film Cling film Piece of record Polythene rod Polythene rod Polythene rod Perspex rod Perspex rod Perspex rod Pull together Pull together Push apart Push apart Push apart Topic 7 page 6 Is there a pattern? Pull together Charged object 1 Charged object 1 Charged object 2 Charged object 2 What happened? What happened? Comb Cling film Cling film Cling film Cling film Piece of record Polythene rod Polythene rod Polythene rod Perspex rod Perspex rod Perspex rod Pull together Pull together Push apart Push apart Push apart same same Push Push apart same same Push Push apart same same Push Push apart different different Pull Pull together different different Pull Pull together different different Pull Pull together Topic 7 page 6 5. If the charged objects are the same material then they will repel Topic 7 page 7 Where Does Charge Come From? The centre of the atom contains both yellow neutrons and green positive protons Around the outside are the negative electrons 1. There are kinds of electrical charge called 2.a) To make an object positively charged you need to b) To make an object negatively charged...
View Full Document

This note was uploaded on 11/08/2011 for the course PHYSICS 121 taught by Professor Richardvanfleet during the Winter '09 term at BYU.

Page1 / 47

Electricity Practical - Topic 7 - Electricity Electricity...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online