GCSE Physics 10.5 Thursday 16-06-2016 Sound Classwork We finished going over the end of year exam. We started to recap on sound, and made some basic notes. I did a few demonstrations with a microphone and an oscilloscope, and we looked at the interpretation of oscilloscope traces. Tuesday 14-06-2016 Going through exam Classwork We started to go through the end of year exam. We will finish this next lesson, then move on to the next topic: sound. Tuesday 24-05-2016 Radioactivity Revision Classwork You worked through some past paper questions on radioactivity. Thursday 12-05-2016 Big Bang Classwork We made notes on the big bang theory, and the evidence provided by red shift of galaxies and cosmic microwave background radiation. The notes are here and the wording of the explanations is quite important. We also discussed whether or not we are at the centre of the universe's expansion. This is not on the syllabus but it's nice to understand. We then considered what could happen to the universe in future. Tuesday 10-05-2016 Doppler effect, red shift Classwork We went over key ideas about the Doppler effect from your HW. I demonstrated this page which is really useful for seeing the cause of the Doppler efect. We discussed the doppler effect for light, and 'blue shift' and 'red shift'. You started to watch this video which shows how the theory of the Big Bang developed. More on this next lesson. Thursday 05-05-2016 Doppler Effect Classwork I gave out the list of stuff you need to know for the end of year exam. We started to make notes on the Doppler effect, and we went to the field where I demonstrated it using sound. We then used this website to take some measurements of frequency and wavelength for a stationary source, and then moving towards and away from the observer. We when started to look at the doppler effect on light, and got up to defining 'blue shift'. Tuesday 03-05-2016 Test, Proportionality Classwork We went through the test on waves. You made notes on proportionality, and different ways to test for it. Thursday 28-04-2016 Test Classwork We did some revision, then did the test on Waves. Homework No homework. Tuesday 26-04-2016 Sterilization Classwork We watched this video which shows a gamma sterilization plant, and discussed various aspects in detail. We also made notes on radiation film badges. Homework Revise for a test on waves on Thursday. Thursday 21-04-2016 EM Applications Classwork You did Q1 on P75 and I demonstrated interference with reflected waves using sound. You adedd to your notes on x-rays and CT scans, having already watched this video which gives a nice explanation. You then made notes on radiotherapy, and how damage to healthy tissue is minimized. We watched this video which shows x-rays being used for radiotherapy. You made notes on sterilization, and the particular use of x-rays and gamma rays because they are so penetrating. Homework You might want to watch this video which shows a gamma sterilization plant. Revise for a test on waves next Thursday. Tuesday 19-04-2016 Diffraction Classwork You did the questions on diffraction on P73 and we went through them together. I demonstrated the diffraction of a laser beam through a narrow slit. Homework Choose a diagram you like from here and add it to your notes. Do some revision for the test on the 28th. Thursday 14-04-2016 Diffraction Classwork I gave out a slightly revised list of stuff you need to know for this topic. We agreed to do the end of topic test on Thursday 28th April. You made notes on diffraction, and we drew some diagrams carefully. We discussed the diffraction of light around obstacles in the context of radio waves diffracting around hills. If you missed the lesson watch this video. Homework Make notes on wave interference using P74-5 and this video. NOTE you can stop the video when he starts talking about "standing waves" - you don't need to know about them till A Level. Tuesday 12-04-2016 EM Uses & Dangers Classwork We made brief notes on uses of EM radiation - you need to know about some of these in more detail. We made notes on "ionizing radiation", and also on the other dangers of parts of the EM spectrum. Homework Make notes on how x-rays are used in medical imaging, CT scans, and the similarities and dirrerences between a normal x-ray scan and a CT scan. Use P86-7 and this video. Bring your notes to next lesson. Thursday 10-03-2016 Wavefronts, Electromagnetic Spectrum Classwork We completed ray and wavefront diagrams for reflection and refraction. See full notes here. You can also watch an animation of refraction with wavefronts here. I introduced the electromagnetic spectrum with this video and we started to make notes. Homework Find the typical wavelength and frequency for each part of the EM spectrum. Find three uses for each part. Bring completed notes to next lesson. Tuesday 08-03-2016 Reflection and refraction Classwork We went over the HW. We corrected the reflection diagram. You did a practical to investigate the refraction of light through a rectangular block. We just need to finish adding a few more notes under that diagram next lesson. Homework Watch and make notes on this video about wavefronts and rays. Bring your notes to next lesson. Thursday 03-03-2016 Frequency, period, wave equation Classwork We did some examples of measuring the amplitude, wavelength and period of waves using these questions which applied both the formulae above. Homework Draw labelled diagrams for: reflection of light from a plane mirror refraction of light through a rectangular block Hand in tomorrow morning by 9am. Tuesday 01-03-2016 Longitudinal Waves Classwork We went through the test on forces. You made notes on longitudinal waves - we just need to say a few more words about this. Homework Watch and make notes on this video about wave measurements. P68 of the textbook will help. Bring notes to next lesson. Tuesday 23-02-2016 Waves Classwork We made notes on waves. People demonstrated transverse and longitudinal waves on a slinky, and I also showed you transverse waves on a rope. We made notes on transverse waves and some examples - we will do longitudinal waves next lesson. Homework Revise for test on Thursday. Thursday 11-02-2016 Energy Transfers Classwork We used this sheet to recap on the work you have done on gravitational potential energy and kinetic energy. We went through the sheet on rollercoasters. You did some calculations for energy transfers betwen gravitational and kinetic energy. Some of these problems were very hard - you did very well. I gave out the list of stuff you need to know for this topic. Homework Revise for test on Thursday 25th February. Thursday 04-02-2016 Cover Lesson Classwork By this stage you should have notes on Work, Power, Gravitational Potential Energy and Kinetic Energy. If you missed any of these lessons, please use P40-47 to catch up on areas you have missed. Answer Q1-3 on P45. Answer Q1-2 on P47. For homework, use the markscheme to check your answers. Tuesday 02-02-2016 Gravitational Potential Energy Classwork I gave you some feedback on the HW. You made notes on gravitational potential energy, and we did some example calculations. Homework Use P46-7 and this video to make notes on kinetic energy. Bring your notes to next lesson. Thursday 28-01-2016 Work and Power Classwork We went through some examples of work done and energy transfers. We noted how important it is to consider the start and end point, and also the direction of the force and the motion. You made brief notes on power, and we did some power calculations. You started some past paper questions. Homework Finish the past paper questions and hand in tomorrow morning before registration. Tuesday 26-01-2016 Word and energy transfers Classwork I gave you some feedback on the HW - in particular, laying out your working clearly. We started to make notes on work and energy transfers and did some examples. Homework Watch this video which gives some examples for lifting (ran out of time for that in lesson). Answer Q1-2 on P41 and hand in tomorrow morning before registration. Thursday 21-01-2016 Hooke's Law Classwork We made notes on Hooke's Law, including the definition and equation. We did an experiment to collect more force/extrnsion data up to the point where a spring breaks. We considered what is meant by 'proportionality', and looked at graphs for things that were or were not proportional. Homework Answer Q6-7 on P38. Leave out 7b (the graph). Hand in tomorrow morning before registration. Tuesday 19-01-2016 Investigating Hooke's Law Classwork We did the practical shown in the video from last lesson's HW. Homework Plot a graph with F on y-axis and ΔL on x-axis. Write a short conclusion on the graph paper. Hand in tomorrow before registration. Thursday 14-01-2016 Skydiver Classwork We went through the force diagrams for various stages of a skydiver doing a parachute jump. We dealt with the misconception of the skydiver moving upwards when the parachute is opened. You drew a speed-time graph for a skydiver and annotated it. You answered the questions on P35 and we went through most of them together. Homework Watch this video which shows an experiment you will do next week. The video is not in English - try to work out what is going on. I will ask some of you to do a voiceover in English next lesson. Tuesday 12-01-2016 Terminal Speed Classwork You plotted graphs of a paper cone being dropped and reaching its terminal speed. We did some recap on distance-time graphs. Homework Use this website and this website to add to your notes about terminal velocity for a skydiver. In particular, please draw force diagrams for the skydiver: A) just as they leave the plane B) as they are falling (but not yet at terminal speed) C) when falling at terminal speed D) just after opening their parachute and E) after they have reached a new terminal speed with the parachute open. Leave some space next to each of these diagrams for us to add notes next lesson. PLEASE JUST MAKE YOUR ARROWS LONGER AND SHORTER like on the second website, rather than fatter and thinner as well (like the first site does). Thursday 07-01-2016 Terminal Speed Classwork You predicted how a feather and a rubber would fall when dropped. We did this experiment using a slow motion camera and compared the results to the predictions. You decided that air resistance caused the two objects to fall differently. We watched a video to see what happens if air resistance is removed. You did an experiment to find out whether the mass or the size of a paper cone affects its terminal speed. Homework Watch this video from 3:05 onwards and use P34-5 to make notes on Terminal Velocity. Bring your notes to next lesson. Thursday 10-12-2015 Testing Crumple Zones Classwork We went over the cover work you did on stopping distances. You designed, built and tested crumple zones and we analysed them using a slow-motion camera. Homework No homework. Tuesday 08-12-2015 COVER LESSON Classwork Read and make notes on P32-33. You do not need to memorise the distances in Figure 2. Homework Answer the questions on P33 and hand in tomorrow morning before registration. Thursday 03-12-2015 Impact Forces Classwork We made notes on impact forces. You learned a new formula - F = Δp/t We looked at impact forces in the context of car crashes, and explained how safety features worked. We looked at some car crash tests to see airbags and crumple zones in action. Homework Answer the questions on P27 and hand in tomorrow morning before registration. Tuesday 01-12-2015 Momentum and collisions Classwork We went over the HW. We did some examples of non-stick collisions. Homework Answer Q3-4 on P30 and hand in tomorrow morning before registration. Thursday 26-11-2015 Momentum, collsions and explosions Classwork You completed a sheet of examples where objects collide and stick together. I introduced explosions and did some demonstrations. You wrote some notes and we did an example. Homework Answer the questions on P25 and hand in tomorrow morning before registration. Tuesday 24-11-2015 Momentum & collisions Classwork We went through some examples of solving problems using conservation of momentum when two objects collide and stick together. There were a lot of late homeworks - this needs to improve next week. Homework Watch this video which gives a really simple example to work through. Watch this video from 18:38 to 22:00. This is important as it shows you that momentum has direction (which is indicated with a plus or a minus). You must go through these examples before next lesson. Wednesday 18-11-2015 Momentum Classwork We went through your HW and made notes on the origin of the elements. This completed the mini-topic of fission, fusion and stars. We started momentum and made some notes and did some example calculations including estimating quantities. Homework Answer the questions on P23 and hand in tomorrow morning before registration. Question 3b) is optional. Tuesday 17-11-2015 Fission/fusion recap Classwork We went over some key aspects of fission (chain reaction, parts of a nuclear reactor, control rods, water as a moderator) Homework Complete the past paper questions I gave out today (leave out 1d). Hand in tomorrow morning. Thursday 12-11-2015 Life Cycle of Stars Classwork Read and make notes on P230-232 (.Life history of a star. and .How the elements formed.. Answer the questions on P231 and check your answers. Make a list of questions you want to ask me when I am back next week. Homework Go over the work you have covered in the last two weeks, and re-watch the videos for any areas you are not sure about. Tuesday 10-11-2015 Nuclear Issues Classwork Read and make notes on .Nuclear Issues. on P226-7. Answer the questions on P227. Homework Check your answers to the questions you did in class. Watch https://www.youtube.com/watch?v=PM9CQDlQI0A (no need to make notes) Tuesday 04-11-2015 Nuclear Fission Classwork Use P222-3 to continue your notes on nuclear fission . you need to add: How a chain reaction can happen A diagram of a nuclear reactor, with the main parts labelled The function of control rods, and the use of water as a coolant and moderator Useful videos: https://www.youtube.com/watch?v=_pY5HeZpNr8 https://www.youtube.com/watch?v=1U6Nzcv9Vws Homework Answer Q1-2 on P223 and bring to next lesson. Thursday 15-10-2015 Nuclear Fission Classwork We went through the test. I gave out the list of stuff you need to know for the next topic - fission and fusion. We made notes on nuclear fusion, and just got up to the point where the neutrons produced in fission can go on to cause a chain reaction. If you missed the lesson, watch this video and see P222-3 of the textbook. We also looked at some equations for nuclear fission, and checked if the number of protons and neutrons was conserved. Homework No homework. Tuesday 13-10-2015 Test Classwork We did the test. Homework No homework. Thursday 08-10-2015 Deflection in fields, recap Classwork We made notes on deflection of alpha, beta and gamma in electric and magnetic fields. We also made brief notes on the use of gamma for medical tracers. We put some people in the hot seat and asked them questions from this topic. Homework Revise for test next lesson. Tuesday 06-10-2015 Radioactive Dating Classwork We went over carbon dating and did some examples. Homework Can't remember - didn't write it down at the time.... Thursday 01-10-2015 More half-life Classwork We went over the HW. We made notes on the definition of half-life, defined 'activity', and contrasted activity with count rate. You did an activity with dice to model radioactive decay. We plotted graphs of activity and dice remaining - the activity graph was messy, but the dice remaining graphs showed nice decay curves. You calculated the 'half-life' of your dice. WE AGREED TO DO A TEST ON THIS STUFF ON TUESDAY 13TH OCTOBER. Homework Make notes on radioactive dating, using this video (which is just about carbon dating) and P219 of the textbook. Bring your notes to next lesson. Tuesday 29-09-2015 Half-life Classwork We did a starter question to practise half-life calculations. I did a demonstration (with some useful assistants) to show you the decay of an isotope of protactinium. The results are here (I removed the first minute or so as the layer was still separating out) - you can also compare with the other group's results which are very similar. We also refreshed your Excel skills when collecting and processing the data to get the corrected count rate in counts per minute. Homework Answer the questions on P217 and hand in before registration tomorrow morning. Thursday 17-09-2015 Uses of alpha, beta, gamma Classwork We went through key uses in detail - alpha in smoke alarms, beta in paper manufacture, gamma in radiotherapy, sterilization and leak detection. We also practised our languages a bit. Homework Watch this video and use P216-7 to make notes on half-life. Bring your notes to next lesson. Tuesday 22-09-2015 Background radiation Classwork We identified the deacy processes in a decay chain. We went through the HW, classifying sources of background radiation as natural or man-made. I'm trialling a web-based whiteboard - you can now see notes from lessons here. We'll see if it's any good... We started the questions on P213 and went through Q1. Homework Research one use each for alpha, beta and gamma radiation. Minimum half a side of A4, maximum 1 side of A4. You can include pictures. Hand in before registration tomorrow morning. Thursday 17-09-2015 Balancing Nuclear Equations Classwork We made notes on beta decay and gamma emission. We did lots of nuclear equations. Homework Watch and make notes on this video about background radiation. Use P210-211 of the textbook to help you. Have a look at this chart which compares the 'dose' of radiation you get from different things. Bring your notes to next lesson. Tuesday 15-09-2015 Alpha, beta and gamma radiation Classwork We checked over your notes on beta and gamma radiation. I demonstrated the penetrating power of alpha and beta radiation. I demonstrated how to measure count rate and how to correct for the background count. Homework Watch and make notes on this video about alpha decay. Bring your notes to next lesson, when we will do some questions and also do calculations for beta decay. Thursday 10-09-2015 Nuclear Radiation Classwork I checked your understanding of isotope notation (like U-238). We made notes on nuclear radiation, and the hazards of ionizing radiation. We made detailed notes on the properties of alpha radiation. Homework Add to your notes from the lesson with similar information about beta and gamma radiation (what they are made from, how ionising they are, etc etc). Use P214-215 of the textbook and watch this video about the penetrating ability of alpha, beta and gamma. NOTE - this guy is NOT demonstrating good practice in terms of radiation safety!!! Tuesday 08-09-2015 Ions & Isotopes Classwork We went through the HW. We did some examples of calculating the number of protons, neutrons and electrons in ions. If you missed the lesson, watch this video about ions. We made some notes about isotopes, and drew atoms of three different isotopes of hydrogen. Homework Watch this video about isotopes and add to your notes from the last two lessons. Complete the next 4 rows of the table from last lesson, and hand in tomorrow morning.
Thursday 03-09-2015 Atomic Structure Classwork We went through basic expectations and when homework will be set, etc. I gave out folders. We made some notes on atomic structure. We completed the first five rows of the table on this worksheet. We then made a start on working out the number of protons, neutrons and electrons in ions - more on this next lesson. Homework Complete the 'Isotopes' side of the worksheet leaving out 3c). Hand in tomorrow morning before registration.