GCSE Physics 11.6 Wednesday 11-05-2016 Revision Classwork I gave out some past paper questions on the generator effect which someone requested last week. We played MFL articulate, and also a game of kahoot that some of you made. Good luck to those of you who have a Spanish exam tomorrow! Thursday 05-05-2016 Radioactive Decay Classwork We went over radioactive decay processes. We also went over key electronic components and their functions and uses. We looked at the generator effect, but we still need to talk about AC and DC generators. Some of you made a kahoot quiz that was very good - well done. Wednesday 04-05-2016 Revision Classwork We did a couple of kahoot quizzes. It seems that some of you definitely need to revise what happens in alpha and beta decay. I gave out another of the AQA GCSE papers - January 2013 Unit 2 Higher. Homework Finish the past paper you started in the lesson. Thursday 28-04-2016 Past Paper Questions Classwork I gave out Specimen Unit 3 Higher which you started to work through. We tried to do a kahoot quiz and failed - hopefully it will be working next lesson. Homework Finish the paper we did in the lesson, and mark it using the markscheme here. Wednesday 27-04-2016 Revision Classwork We did some quizzes on kahoot. I provided even more past paper questions for you. Homework Continue your revision. If you are super keen you can make your own quiz on kahoot to use next lesson. Thursday 21-04-2016 Past Paper Questions Classwork Most of you finished the Electricity and Magnetism questions, and I went over a few of the tricky questions with some of you individually. Some of you might want to watch this video that goes over voltage in series circuits (very basic). Many of you then started the questions on thermal physics from here which I printed out for you. Homework Continue your revision. Wednesday 20-04-2016 Past Paper Questions Classwork You did lots more past paper questions - June 2015 C and June 2015 D . I gave out the Electricity and Magnetism questions from here. Homework Continue your revision. Thursday 14-04-2016 Past Paper Questions Classwork You did June 2015 A and started June 2015 B. I demonstrated chromatic aberration with a glass lens. This is not specifically on the syllabus though. I also talked briefly about fluorescence (because of the fluorescent dye used in the model eye) - again this is not on the syllabus, but there's a really interesting video here that you might like if you're interested in it. Homework Finish June 2015 B and mark using the markscheme I provided. Wednesday 13-04-2016 Eye & Camera Classwork You did some past paper questions on refraction and lenses. I showed you a demonstration of a model eye, and we saw the correction of short sight and long sight. I also showed you an SLR camera, and we went over the silimarities and differences between the eye and the camera. Homework I gave out a sheet of key terms you need to know. Watch this video which goes through these key terms, and bring any questions you have to next lesson. Thursday 17-03-2016 Sight defects & corrections Classwork We went over the ray diagrams you did for HW. You made notes on lens power and we did some example calculations. We discussed and made notes on laser eye treatment and the use of different materials for spectacle lenses. You answered Q3 on P119. Homework Make notes on the comparision between an eye and a camera using P115 and this video. For your revision, here are the answers to the questions in the textbook. Thanks to Mr H there are now lots of past paper questions and answers here if you want to do some. Wednesday 16-03-2016 The Eye Classwork We went over the HW questions you did, and especially the conventions for the lens formula: f is positive for converving lenses and negative for diverging lenses; v is positive for real images and negative for virtual images. This was important for Q3 especially. You did some of the quetsions on P118. We labelled a diagram of the eye (se P114) and made notes on the function of key parts. If you missed the lesson, this video may help. We drew two ray diagrams for a normal eye focussing on nearby and distant objects. Homework Use P114 to make brief notes on the 'near point', 'far point' and 'range of vision'. Use P116 and this video to make notes on long and short signtedness, and draw four more eye diagrams for the following situations: A short sighted person looking at a distant object without a corrective lens A short sighted person looking at a distant object with a corrective lens A long sighted person looking at a nearby object without a corrective lens A long sighted person looking at a nearby object with a corrective lens Thursday 10-03-2016 Past Paper Questions Classwork You did these past paper questions. We went through the first few questions, but need to go through the rest. Homework Answer Q1-3 on P113 using the lens formula and check your answers here. You may want to watch this video which shows some examples of using the lens formula. Wednesday 09-03-2016 Converging lenses Classwork We went over the ray diagrams you did for your HW. You did a practical with a converging lens to recreate the scenarios from the HW. We then did ray diagrams for the object exaclty at f, and the object at a distance less than f. You started the questions on P111 - we will go over these next lesson. Homework Draw a ray diagram for a diverging lens. You can watch this video which does lots of examples, but you don't need to watch it all. Make notes on the lens formula using this video. No need to make notes on magnification again. Make sure you have a clear diagram that labels u and v. We will apply this formula next lesson. SORRY!!! After posting the video above you pointed out that it uses a different version of the lens formula. We use the version 1/u + 1/v = 1/f. Thursday 03-03-2016 Intro to Lenses Classwork You did a problem about refraction throught a semicircular block. We went over the HW and the diagrams for the optical fibres. I demonstrated light travelling along the fibre I made last lesson, and we made brief notes on applications of optical fibres. We made notes on lenses, in particular converging lenses, and the properties an image can have. You used a converging lens in a magnifying glass to form a real diminished image on a screen. Homework Watch this video up to 6:18. Very carefully draw the diagrams and make notes on the properties of the image for the first three situations he discusses - up to d o between 2f and f. P110 may be useful. Bring your notes to next lesson. Wednesday 02-03-2016 Total internal reflection Classwork You did a very hard starter sheet about refraction through a hexagonal prism. You did a practical to investigate refraction and total internal reflection in a semicircular block. We made notes on total internal reflection and critical angle. I demonstrated pulling a glass rod into a thin, flexible glass fibre. Homework Watch and make notes on this video and do the calculations yourself. Complete the path of the two rays in optical fibres on the sheet I gave out in the lesson. Bring to next lesson. Thursday 25-02-2016 Snell's Law Classwork You did some calculations using Snell's Law. You did a simple practical with a rectangular block to find the refractive index of the material it was made from. You did a better practical using a semicircular block to find the refractive index more accurately. Homework Make sure you have calculated n for each row of your table, then find an average. Watch this video about total internal reflection. Copy the four diagrams, and write down the conditions for total internal reflectin to occur. Bring your work to next lesson. Wednesday 24-02-2016 Refraction Classwork We did a quick recap on ray diagrams for reflection. We made notes on refraction, and looked at refraction through a glass block and refraction through a triangular prism. We defined 'refractive index' and did some example calculations. Homework Make notes on Snell's Law using P102-3 of the textbook and this video. Bring your notes to next lesson. Thursday 11-02-2016 Transformers Classwork I demonstrated how transformers work using two coils and an AC power supply. We recapped on the key points from your notes. You worked through a set of questions on transformers (will post the link when I find the file). We went through the quesions. You made excellent progress on transformers - well done. Wednesday 10-02-2016 Generators Classwork You tried inducing a voltage in a coil. I showed you this model which you can play with at home. We learned how to work out the direction of the induced current in a coil. I used this model to look at AC and DC generators, and demonstrated lighting an LED with a generator turned by hand. You answered Q1-2 on P203. Homework Make notes on WHAT TRANSFORMERS DO, HOW THEY WORK, and the TRANSFORMER EQUATION. This video is quite short and explains what you need to know. P204 and P206 of your textbook will also be useful. The first four minutes of this video give a practical demonstration of how transformers work, using a setup similar to that in Figure 5 on P201. Bring your notes and any questions you have to next lesson. Thursday 04-02-2016 Cover Lesson Classwork Stick the right hand rule diagram in the gap we left last lesson and label it. Answer Q1-2 on P201. Make notes on the AC generator on P202. I have printed out a sheet showing an AC generator in several positions that you may find useful. Answer Q2 on P209 For homework, watch this video and add to your notes where necessary. If you finish early, do some quiet revision work. Wednesday 03-02-2016 DC Motor, Generator Effect Classwork I gave you some feedback on the wording of your HW answers. Most of you managed to make a working DC motor. I demonstrated the generator effect, and we made notes on it. Homework In the lesson I induced a voltage in a straight piece of wire. You can also induce a voltage in a coil of wire. Watch the first half of this video and this video and possibly this video which demonstrate the principle in action. Use the videos an P200-201 to make notes on inducing a voltage in a coil using a magnet. Thursday 28-01-2016 DC Electric Motor Classwork We went over the sheet you did for HW. I demonstrated the operation of a DC motor. Hopefully you can build your own next lesson. We looked at a labelled diagram of a DC motor and explained how the split ring commutator allows it to turn continuously. You started doing some past paper questions. Homework Finish the past paper quesions and hand them in before registration on Monday morning. Wednesday 27-01-2016 Motor Effect Classwork We went over the diagrams you did for HW. We made notes on "conventional current". You learned the "right hand grip rule". I demonstrated the motor effect, and you made notes on that. I showed you Fleming's Left Hand Rule & we did a bit of practice. If you missed the lesson, wathc this video. Homework Complete the sheet I gave out in the lesson and bring to tomorrow's lesson. Thursday 21-01-2016 Magnetism Recap Classwork We finished going through the mock paper. We started to recap on magnetism. You went through a magnetism test from Year 8, and we made notes on: magnetic materials electromagnets & the field around a current-carrying coil of wire bar magnets & the field around a bar magnet Homework Continuing from your notes in the lesson, draw the field patterns for: two bar magnets attracting two bar magnets repelling a straight wire with a current flowing through it leave some space around each diagram to add notes next lesson. Use P195-6 of the textbook and this video from 5:58 onwards to help you. Wednesday 20-01-2016 Mock Classwork We went through the mock and got most of the way through it. Homework No homework. Thursday 03-12-2015 More circuits Classwork I gave out the markscheme to the past paper questions you started last lesson. I gave out some more circuits problems, and you modelled these using this circuit simulator. Homework Continue your revision for your mock. Wednesday 02-12-2015 Electrical Circuits Classwork I went over the rules for current, voltage and resistance in series and parallel circuits. You did these circuits questions and we went through the answers. You started some past paper questions. Homework Continue your revision for your mock. Thursday 26-11-2015 Heat transfer revision Classwork We went through the quiz questions you did for homework. We worked through a sheet on specific heat capacity and started this sheet on latent heat. We can finish going through the latent heat sheet next lesson. Homework Do some revision for your mock. this video about latent heat of vaporization might be useful. Wednesday 25-11-2015 Light bulbs, diodes, rectification Classwork You completed a sheet on lighting choices. You made notes on diodes and rectification, and I demonstrated this using LEDs and an AC power supply. Homework Complete the quiz on heat transfer and bring to tomorrow's lesson. Thursday 19-11-2015 No lesson - science week lecture Wednesday 18-11-2015 Electricity recap Classwork We went over: cost of electricity parts & voltages of the national grid why transformers are used fuses, circuit breakers and RCCBs We started Q7-8 on P192. Homework Finish Q7-8 on P192 and answer Q1 on P193. Hand in tomorrow morning before registration. Thursday 12-11-2015 Questions Classwork Answer the questions on P193 and check your answers. It should take about 45 minutes to answer the questions, leaving 20 minutes to mark and correct them. Homework Go through what you have done and make a list of things you want to ask me when I get back. Wednesday 11-11-2015 Power & cost of electricity Classwork Read and make notes on P186-7. Answer the questions on P187 and check your answers. Useful videos: https://www.youtube.com/watch?v=pffcs7Vlo-w Homework Recap on what we have covered so far, and re-watch any videos if necessary. Thursday 05-10-2015 Electrical safety, national grid Classwork Answer the questions on P181 and check your answers. Read and make notes on P190-191 (the national grid). It doesn.t say a lot about transformers . basically at this stage you need to know that they are devices that change the voltage (and current) of AC electricity. A step-up transformer increases the voltage and decreases the current. A step-down transformer does the opposite. Answer the questions on P191, and check your answers (they will be given to you). Useful videos: https://www.youtube.com/watch?v=yJZTk4IP9gE Homework It's important to understand the concept of earthing, so watch https://www.youtube.com/watch?v=foyBuyx01zI and add to your notes where necessary. Wednesday 04-10-2015 Recap, electrical safety Classwork Answer the questions on P177 and P181, then check your answers. Read and make notes on P188 ('Electrical issues') and answer questions 2-3 on P189. Check your answers. Homework In addition to fuses, you need to know how circuit breakers and RCCBs work. Watch https://www.youtube.com/watch?v=xS2-Q9l9_ew and https://www.youtube.com/watch?v=1qKiHYNSKjQ (you can skip the bits about fuses) and use P181 to make notes. Thursday 15-10-2015 Oscilloscopes Claswork We went through the test. I gave out a sheet on how to use an oscilloscope and a worksheet with examples. You used an oscilloscope to look at the voltage across a lamp connected to an AC power supply. You found the amplitude (should have been between 5 and 10V), the period (should have been 0.02s but I expect some variation there) and the frequency (should be 50Hz, but again I expect some variation). Homework No homework. Wednesday 09-10-2015 Mains electricity Classwork I gave back the test. We will go through it next lesson. If you missed it I gave you a copy - please complete in 30 minutes and hand in to my locker. We made some notes on mains electricity - mainly on the role of the live, neutral and earth wires. You wired a plug in pairs - some more successfully than others. Homework Make notes on Cables and Plugs using P178-9 and the first six minutes of this video. Bring your notes to next lesson. Thursday 08-10-2015 AC & DC Claswork We did the test. We made some notes on AC and DC, and I demonstrated a few things with the slow motion camera, a turntable, and this simulator. Homework No homework. Wednesday 07-10-2015 Revision Classwork We finished off the past paper questions from last lesson and I gave out the markscheme. We put some people in the hot seat and asked them lots of questions from this topic. Homework Revise for test next lesson. Thursday 01-10-2015 Force Multipliers Classwork You worked through this sheet that introduces concepts about force multiplication. We made some notes on force multipliers - you need to know that levers and hydraulic systems are force multipliers. We started some past paper questions. Homework Finish the questions up to and including 3b). Hand in tomorrow morning before registration. Wednsday 30-09-2015 Hydraulic Systems Classwork We did these questions on pressure and hydraulics. I demonstrated a slightly rubbish hydraulic system made from two syringes, and also showed you a real hydraulic jack. Next lesson remind me to demonstrate the jack lifting something. We added to your notes to say that the ratio of the forces in a hydraulic system is equal to the ratio of the piston areas. Homework No homework today due to options evening :( Thursday 24-09-2015 Circular Motion Classwork We answered a hard question about the centripetal force on some children on a merry-go-round (see here). You marked Q2-3 of the HW using the markscheme, and we went through Q1 together. We plotted the graph from last lesson's practical, and discussed the reults with reference to the formula F=mv²/r (though you don't need to know the formula). We agreed to do a test on this stuff on Thursday 8th October We started Q1-3 on P65, but progress on this was very slow so we only went through a small part of it. Homework Watch this video about hydraulics and make notes on P62-63. Bring your notes to next lesson. Wednsday 23-09-2015 Circular Motion Classwork We went through the notes you made for HW to make sure you had all the essential information. I showed you this model of what happens if you chuck something horizontally at higher and higher speeds. We predicted what would happen if you whirled an object round on a string then let go, and we tried it (this is the video from my other group). We did a practical to investigate the repationship between speed and centripetal force. NOTE: I'm trialling a new whiteboard so you can see notes from the lesson. The link is here. We'll see how it goes. Homework Complete these past paper questions and bring to tomorrow's lesson. Thursday 17-09-2015 Stability Classwork We did this starter question on stability. We went through the HW in detail. We made some notes on stability, and investigated the effect of raising or lowering the centre of mass on stability - though we did not quite finish this. Homework First complete these sentences at the end of your notes from today: If you raise the centre of mass of an object, it becomes ........... stable. If you lower the centre of mass of an object, it becomes ........... stable. If you widen the base of an object, it becomes ........... stable. Then watch and make notes on this video about circular motion up to 6:08 when he starts talking about the bucket of water. Bring your notes to next lesson. Wednesday 16-09-2015 More Moments Classwork We did an experiment to find the weight of a ruler by balancing it off centre. See Figure 3 on P57. We made notes on how to identify the "perpendicular distance". We started this sheet of questions. Homework Finish the worksheet and bring to next lesson. Watch this video about stability.
Thursday 10-09-2015 Centre of mass, moments Classwork We did some recap on period and frequency, and answered Q1-2 on P53. We did an experiment to find the centre of mass of an irregular shaped piece of card. We analysed a slow motion video to see that a freely spinning object turns around its centre of mass. We made some brief notes on moments, and did a few simple calculations. Homework Complete both sides of this sheet and hand in before registration tomorrow. Wednesday 09-09-2015 Pendulums Classwork We investigated the effect of the length and the mass on the period of a pendulum. We considered the best way to time the swings. We started to make notes on centre of mass. Homework Read and make notes on Centre of Mass on P50-51. Bring these notes to next lesson. Watch this video which shows an experiment you will do next lesson. No need to make notes on this.