Electricity Resources

The 2018 part 1 Electricity Notes.

this is the pdf version of the document above covering a.c/ d.c, rms, resistance, circuits, and emf.  

And even hotter off the press part 2 Electricity Notes, sorry these have taken 6 months!


Remember

An LED is FORWARD biased. A photon is emitted when an electron falls from the conduction band into the valence band.

Power Matching (word)  Power Matching (pdf) Here is a task to show how to get the greatest power from your circuit. I’ve uploaded it as a pdf and word document.

Here are the answers in an excel spreadsheet, but don’t peek until you’ve completed your own graphs and table! power matching

semiconductors working 2

White Board Revision of Electricity 2

final-question-past-paper Here are the questions from the Revised Higher Physics Papers in topic order with the marking instructions. If you can’t read this I can upload as a pdf file, just ask!

 A graph of current against time for charging and discharging at different frequencies. Notice how at low frequencies (0-16s) the current can drop quite low, whereas at higher frequencies (16-26s) their is greater current overall.

Here is a nice introduction to semiconductors

Band Theory

My powerpoint for this section contains some exciting explanations that I’ve “borrow” from Chris Hooley, Paul at High School Physics Explained and helpmyphysics. The first powerpoint is 588MB so I’ve had to break it up to upload it. If you want to use it you’ll need to download each part and paste it all back together!

This is the first section of semiconductors but I’ve ad to break it up to upload it

I’ve taken out the embedded videos so some of the helpmyphysics, you might need to cut some of it. Hope it helps you.

[table id=16 /]

2016 Higher Question Paper

Some cars use LEDs in place of filament lamps. An LED is made from semiconductor material that has been doped with impurities to create a p-n junction. The diagram represents the band structure of an LED.

A voltage is applied across an LED so that it is forward biased and emits light.

Using band theory, explain how the LED emits light.

(Voltage applied causes) electrons to move towards conduction band of p-type/ away from n-type (towards the junction) (1)

Electrons move/ drop from conduction band to valence band (1)

Photon emitted (when electron drops) (1)

Anderson High School

Thanks to N. Hunter for these great notes from Anderson High.

This is the end of the course! Thanks for making the journey with me. Just revision to do now. All of those resources can be found in the REVISION section.

Worked Answers

For speed I will add some of the worked answer files here until I can produce an answer booklet, which I’ll do a.s.a.p.

capacitance tutorial answers

electric fields and resistors tutorials 2010

ac voltage tutorials answers corrected

electric fields and resistors tutorial answers

Signature

ODU Resources

You moaned and I responded. Here are just the notes for the ODU section, no questions to put you off. I will move the questions to the Learning Outcome Booklet.

ODU Notes and Practicals

Updated for the 2018 changes

Part 1, containing notes, tutorials and practicals

OUR DYNAMIC UNIVERSE 2018 pdf

OUR DYNAMIC UNIVERSE 2018 word

Part 2 of the notes in word format, you can adapt these if you can open them.

These are part 2 of the notes in pdf format, so you all ought to be able to open them.

OUR DYNAMIC UNIVERSE part 2 

Well after spending 18 months or more several years ago putting everything together students have unanimously declared they want everything separated, so your wish is my command students- here is the complete Our Dynamic Universe section notes with nothing but the essential practicals plus one!

These are part 1 of the notes in pdf format, so you all ought to be able to open them. There is a word version underneath.

These are part 1 of the notes in word format, you can adapt these if you can open them.

New for 2022 KNOWLEDGE ORGANISERS

Teamwork by Mr Stewart (Berwickshire HS) and I. He designed and made them and I tweaked them. Thanks Mr Stewart they’re ace!

Thanks Mr R Stewart- what a team!

Thanks Mr R Stewart!

For those having trouble with Unit 1 part 1 try this little document

1. 1a Equations of motion

1. 1a Equations of motion

I’ve removed the Time Dilation detailed version and added it as a separate document as I suspect most of you wont read them; which is a pity as it makes everything seem fine! Based on Russell Stannard’s excellent book “Relativity- a very short introduction” Oxford. (2008)  ISBN 978–0–19–923622–0)

ODU worked ANSWERS_4 Currently the most up to date version of the worked answers.

ODU worked ANSWERS_4 The pdf version of the most up to date version of the worked answers.

Additional Support

Chapter 1 exam questions B for CFE higher

Chapter 1 exam Answers B for CFE higher

These are powerpoints prepared for the Revised Higher in 2000. They are still relevant now, and talk through example questions. They are great for revision.

It might be old, but sometimes the old ones are the best. Link for the ppp below!

Linked to some talking questions and answer. ppp below

For those struggling with the vectors try these to give you some practice Great Resource from Mr Crookes. Set up your 2 vectors, either use a scale diagram or components and compare to the given answer. Enjoy!

If you don’t like proving v2=u2+2as from v=u+at then use this neat little sheet from Mr Mackenzie.

A lovely little summary from G Gibb!

Equations of Motion

4.4 ODU EqoM 2012 this document has the macros enabled (actually I think you might need to contact me to get the macros, they are not allowed to be uploaded on a WordPress Website. It allows you to check your answers for the acceleration time graphs that you drew from the velocity time graph diagrams.

using displacement equation to prove the last equation

Click on the image to open a power point of Adding Vectors.

Forces, Energy and Power

Momentum

africanfastfood This is an introduction to the momentum topic; think about the collision and where the energy is transferred.

Collisions- Think Safety before buying a car!

Gravitation

Projectiles thanks to Mr. Rossi for this one.

Battleships & AWACS Projectiles thanks to Mr. Rossi for this one too.

Special Relativity

Time dilation02

Cleonis [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)]

The green dots and red dots in the animation represent spaceships. The ships of the green fleet have no velocity relative to each other, so for the clocks onboard of the individual ships, the same amount of time elapses relative to each other, and they can set up a procedure to maintain a synchronized standard fleet time. The ships of the “red fleet” are moving with a velocity of 0.866 of the speed of light with respect to the green fleet.

The blue dots represent pulses of light. One cycle of light-pulses between two green ships takes two seconds of “green time”, one second for each leg.

{\displaystyle {\sqrt {3}}}

As seen from the perspective of the reds, the transit time of the light pulses they exchange among each other is one second of “red time” for each leg. As seen from the perspective of the greens, the red ships’ cycle of exchanging light pulses travels a diagonal path that is two light-seconds long. (As seen from the green perspective the reds travel 1.73 ({\displaystyle {\sqrt {3}}}) light-seconds of distance for every two seconds of green time.)The animation cycles between the green perspective and the red perspective, to emphasize the symmetry.

OnVelocities This is a document referred to in the Research Task in the ODU part 2 notes.

PHYSICS WORLD ARTICLE DECEMBER 2009 This is a document referred to in the Research Task in ODU part 2 notes

The Expanding Universe

The expanding universe powerpoints. Might not be quite the final version

This is the pdf version of the powerpoint

The above is the pdf version of the powerpoint

Are we missing something in the Expanding Universe?

AH (Doppler)– some of this is relevant to Higher.

HOMEWORK

The homework booklets are now in the HOMEWORK section.

Homework Booklet Complete pp6-8 (first question), 10-16, 18. Complete notes on Units prefixes and Sci Notation, Uncertainties, Equations of Motion. Read up on Forces.

Updated August 2019
Signature

Preferences