## Rotational Motion Background Documents

Welcome to the 2021-22 AH Physics course. Another year, another journey together. I hope you feel that this site meets your requirements and that you can find the materials that you need.

Check out MrStewart’s YouTube channel for some great clear explanations from this course.

#### Higher Revision

1b Mechanics Learning Outcomes 1 Questions

1b Mechanics Learning Outcomes 1 Answers

2a Flea soln

2b Linear motion

#### differentiation and integration in Linear Motion

1c homework on differentiation

#### Tutorial Questions

RMA-726390 A set of Problem Solving Questions based on the original HSDU material by Andrew McGuigan, in pdf format

RMA 726390 A  set of Problem Solving Questions based on the original HSDU material by Andrew McGuigan, in word format

## Rotational Motion

2 Circular Motion_2

Gravity Wells in infographics!

https://xkcd.com/681_large/

Gravitational Waves

## Quanta & Waves Resources

Resources: Notes and video (flash learning AH CfE Virtual Physics)

Read the notes, watch the video and answer the questions below, in a way that makes them form a good note about the subject.

1. What three pieces of key evidence didnâ€™t fit with classical physics?
2. In 1911 Rutherford put forward his model of the atom, a) State the important features of this model b) What provides the centripetal force for the electrons in this model?
4. State two changes with the black body radiation curve as temperature increases.
5. Describe the UV catastrophe.
6. Who helped solve the UV catastrophe and in what ways?
7. Which piece of the photoelectric effect experiment demonstrates that energy is not transferred as waves?
8. From the photoelectric effect state the link between the energy of the photon and a) the frequency of the radiation, b) the wavelength
9. What did Bohr postulate about angular momentum?
10. State the formula for angular momentum in Bohrâ€™s model of the atom, (define each term)
11. State the limits for the Bohr model of the atom
12. Explain the observation made by GP Thomson in 1920 which led to further debate on the issue.
13. What did de Broglie imply was the link between electrons as waves and particles?
14. Explain the confusion caused when looking at the double slit experiment with single particles.
15. What happens when you observe an electron passing through the slit?
16. What two quantities cannot be measured together with much certainty and why?

Here is a nice little video on Standing Waves. Standing waves are formed when a wave interferes with its reflection to produce nodes and antinodes.

…..and here is the explanation for the standing wave video

Below are some cracking resources from Sally Weatherly, find her here!

## Resources

Below are some accumulated resources. Thanks to all of those who produced them.

ah-quanta-summary notes problems-2015 Thanks to RGC for these notes

quanta-and-waves-student-booklet-i-ror Thanks to Mr Orr for these.

Quanta and Waves Student booklet I ROR pdf version of the above

4.2 Energy changes during simple harmonic motion

ah waves summary notes and problems 2013 RGC notes thanks for these

PhysicsQuantaandWaves_tcm4-726389 Andrew McGuigan Numerical Questions

ah quanta summary notes and problems 2015 LA

ah quanta tutorial solutions 2015

ah uncertainties experiments 2013

ah waves summary notes and problems 2013

ah waves tutorial solutions 2013

# Quanta

glossary-of-terms-table2

Properties_of_stars_and_stellar_evolution

electrons-exhibit-both-wave

cosmic-rays A quick research task on cosmic rays.

solar-wind-magnetosphere

Scientist think that the Earth is due a “Magnetic Flip” Research this starting at the link below and then answer the AH Revised question on this from the 2015 Paper Q11

Here is a Radio 4 programme talking about the consequences of a polar flip. If you want to view further programmes click on the link below.

http://www.bbc.co.uk/curious case of Rutherford and Fry

soho_fact_sheet

The number of sunspots is an indication of solar activity. Research this and then complete the AH Revised 2013 paper Q6.

quantum-mechanics

unit-2-part-1-quanta-notes

Quantum Tunnelling – strange but true

Background

What is the Uncertainty Principle? Minute Physics

Quantum Tunnelling is the process by which a particle gets across a barrier that it cannot classically pass.

It is related to wave-particle duality in that it is a result of the wave nature of a particle.

The probability of the particles getting through the barrier drops exponentially with the thickness of the barrier.

“>What is Quantum Tunnelling? Minute Physics

How to walk through walls- Quantum Tunnelling

Is Quantum Tunnelling faster than the speed of light?

# Waves

shm-intro

unit-2-part-2-waves-notes

shm INTRO

PhysicsQuantaandWaves_tcm4-726389

Tutorial AH Revised Booklet v2

AH (SHM)

December 2020

## Electromagnetism

PhysicsElectromagnetismAH_tcm4-726384 Questions on the electromagnetism topic

ah electromagnetism summary notes 2013 Robert Gordon’s College brilliant notes

ah electromagnetism problems 2013

AH (Electrical Phenomena)

Unit 3 – 1 Fields

CircuitsNotes4

These are great little notes by F Kastelein on Unit 3 Electromagnetism. A lovely summary

#### More video clips from John Sharkey’s Collections

Here is a great little video on Lenz’ Law called Michael’s Toys