# GCSE Physics - 10-7

• ## Not Much

• ### Classwork

• There were very few people in the lesson, so we just worked on a few puzzles and learned about binary and hexadecimal (which is not on the syllabus).
• ## Cover Lesson

• ### Classwork

• You have already covered a lot of this in Y8 so it should be familiar:
• Read and make notes on P92-3
• Answer the summary questions on P93.
• Read and make notes on P94-5
• Answer the summary questions on P95.
• ### Homework

• Finish for homework and bring your notes and answers to next lesson, when we will go through them.
• ## Electrostatics Recap

• ### Classwork

• I had some electrostatics apparatus in the class, so we did a few demonstrations and explanations of electrostatic phenomena.
• ## Going through exam

• ### Classwork

• We went through the end of year examination.
• If there are still any parts you want to go through again, come to Physics Support on Thursday lunchtime or come and find me.
• ## Momentum

• ### Classwork

• We did lots of momentum questions from this sheet and this sheet (second sheet has the answers too).
• ### Homework

• Continue your revision.
• ## Forces and motion, radiioactivity

• ### Classwork

• We finished off the questions I gave out last lesson and went through the answers.
• I gave out a sheet on radioactivity, fission and fusion which most of you finished or nearly finished in the lesson.
• ### Homework

• Finish the questions started in class, then mark and correct using the markscheme I gave out at the end of the lesson.
• Bring your marked work and any questions you have to tomorrow's lesson.
• ## Graphs of motion

• ### Classwork

• We did this task and went through it:
• A teacher paces backwards and forwards across the classroom twice. They walk at a constant speed of 1m/s. The room is 5m wide. Draw:
• a) a displacement-time graph
• b) a velocity-time graph
• c) a distance-time graph
• d) a speed-time graph
• ### Homework

• Answer Q1-3 on this sheet and hand in BEFORE REG on Wednesday.
• ## Big Bang

• ### Classwork

• We did these questions on the Doppler effect and the Big Bang.
• We made some notes on what the 'Big Bang' theory states, and the other main piece of evidence for it - Cosmic Microwave Background Radiation.
• ### Homework

• I gave out the list of things you need to know for the end of year examination.
• Go through this list and highlight areas you want to target in the remaining revision lessons we have.

• ## Hubble's Law

• ### Classwork

• We did a revision quiz.
• We made some notes on Hubble's law and the evidence that the universe seems to be expanding.
• We also spoke about why we are not at the centre of the expansion, even though all galaxies are moving away from us.
• ### Homework

• Read and make notes on P122-3, particularly:
• What is the big bang? What is the evidence for it? (Hubble's discovery + CMBR)
• This video is pretty good - though you don't have to make notes on it as some of the stuff is not on the syllabus.
• ## Doppler effect

• ### Classwork

• We went through the test.
• I started to demonstrate the Doppler effect using this website.
• ### Homework

• Play with the website linked to above. Click the page to start making waves, and click and drag to make the plane move as it emits waves.
• Use your phone as a timer, and work out the period and frequency of the waves when the source is stationary. (we won't worry about the wavelength as your screens may be different sizes so this will differ)
• Then make the plane move, and put the mouse pointer in front of the plane. Verify that the period of the waves passing the mouse pointer is shorter (and the frequency is higher) compared with when the source is not moving.
• Do the same with the mouse pointer behind the plane, and check that the period of waves arriving is longer and the frequency therefore lower.
• Then watch this video and make notes on the Doppler effect. Bring notes to next lesson.
• ## Test

• ### Classwork

• We did a bingo game and some revision.
• We did the end of topic test.

• No homework.
• ## Ionizing radiation

• ### Classwork

• We did some recap questions using mini whiteboards.
• We went through the uses and dangers of UV, x-rays and gamma rays.
• We made notes on ionizing radiation, and on the use of x-rays and gamma rays for radiotherapy.
• We started to do these questions.
• ### Homework

• Revise for end of topic test on Thursday 23rd April.
• Here are the answers to the questions we started in class.
• ## Electromagnetic Spectrum

• ### Classwork

• We went through the HW questions and corrected mistakes.
• We added to your notes with the uses and dangers of radio waves, microwaves, infra-red and visible light.
• ### Homework

• Research the uses and dangers of ultraviolet light, x-rays and gamma rays and add to your notes. (See P84-87)
• Bring to next lesson.
• ## Waves questions

• ### Classwork

• We went through Q1-7a on P76.
• We started the questionson P77.
• ### Homework

• Read and make notes on P78-9.
• Answer Q1-3 on P79 and bring to next lesson.
• ## More wavefronts and rays

• ### Classwork

• We went through the HW questions, and the wavefront diagram for refraction.
• We started to answer Q3 onwards on P76.
• ## Interference; Wavefronts and Rays

• ### Classwork

• We went though the HW questions.
• We demonstrated interference with sound and light.
• We drew diagrams using wavefronts and rays for: waves spreading out from a point, reflection, diffraction, refraction.
• ### Homework

• Answer Q1-2 on P71.
• Make sure you do a LARGE ACCURATE DIAGRAM for Q2.
• Bring to tomorrow's lesson.
• ## Diffraction and Interference

• ### Classwork

• We clarified the difference between refraction and diffraction.
• We saw a demonstration of light diffracting though a narrow gap.
• We made some notes on interference of waves, and heard a demonstration of sound waves interfering.
• ### Homework

• Read P74-5 of the textbook and add to your notes about interference.
• Answer Q 1-2 on P75 and bring to next lesson.
• ## Reflection and refraction

• ### Classwork

• We did a series of practicals to investigate reflection at a plane mirror, and refraction in rectangular blocks and triangular prisms.
• We made some notes on reflection and refraction.
• ### Homework

• We have seen diffraction demonstrated with the ripple tank.
• Watch this video and this video and make notes on diffraction using P72-3 of the textbook.
• Bring your notes to next lesson.
• If I don't have your test result please bring your test to tomorrow's lesson.
• ## Waves - key terms

• ### Classwork

• We went over the notes you made for homework - particularly wavelength, amplitude and frequency.
• We also introduced the concept of the period of a wave, and the relationship between frequency and period: f = 1/T.
• ### Homework

• Answer Q1-3 on P69 and hand in on Monday.
• ## Transverse and longitudinal waves

• ### Classwork

• We did some recap on reflection and refraction of light - more on this next week.
• I demonstrated transverse and longitudinal waves on a slinky (see this video and P66-7).
• We made some notes on transverse and longitudinal waves, and examples of each.
• We did Q2-3 on P77.
• ### Homework

• Read and make notes on P68-9 - in particular on the definitions of amplitude, wavelength and ferquency, and also the wave equation.
• The first part of this video may help.
• Bring your notes to next lesson - we will go over the definitions and practise some calculations with the wave equation.
• ## Test Feedback

• ### Classwork

• We went through the test.
• The rest of the class saw the demonstrations with the ripple tank.
• ### Homework

• No homework.
• ## Not Much

• ### Classwork

• About half the class was missing, so we looked at some demonstrations with the ripple tank and had a look at the test.
• We did not make any notes.
• Hoemwork
• No homework,
• ## Test

• ### Classwork

• We did the test.
• ### Homework

• No homework.
• ## Recap Questions

• ### Classwork

• You wrote some recap questions to go over work done, kinetic energy and gravitational potential energy.
• We looked in detail at the energy transfers in a rollercoaster.
• ### Homework

• Revise for test next lesson.
• ## Power

• ### Classwork

• We did some questions about forces, work and power, and went through the answers together.
• We will go through the very last part next lesson.
• ### Homework

• Watch this video about GPE and this video about kinetic energy. See also P44-47 of the textbook.
• Make notes on these, and bring to next lesson.
• ## Work Done

• ### Classwork

• We did some examples of work done calculations.
• We did the questions on P43 but didn't quite get through all the answers...
• ### Homework

• Watch this video about Power and read P42-3 of the textbook.
• Make notes on these and bring to next lesson.
• ## Hooke's Law Questions

• ### Classwork

• We went through the questions you did for HW.
• ### Homework

• Watch this video and read P40-41.
• Make notes on these and bring your notes and any questions to next lesson.
• ## Hooke's Law

• ### Classwork

• We did the Hooke's Law practical and plotted graphs for a spring and an elastic band.
• We added to the notes you made for HW - see here
• ### Homework

• Do Q6-7 on P38 and bring to next lesson - skip the graph part (7b).
• ## Stopping distance

• ### Classwork

• We went through the answers for the homework.
• We also did some recap on the difference between distance-time, speed-time, displacement-time and velocity-time graphs.
• ### Homework

• Watch this video about Hooke's Law and read P36-7 of the textbook.
• Make notes on these and bring your notes to next lesson.
• In the lesson we will do the practical described in the video.
• ## Stopping distance

• ### Classwork

• We added to the notes you made for your homework, and answered Q1-2 on P33 of the textbook.
• We started to examine the velocity-time graph for stopping cars - you will complete this analysis for homework.
• ### Homework

• Answer the questions shown here - either on the sheet or in your notes.
• Bring your work to next lesson when we will go through the answers.
• You can also test your reaction time if you like.
• ## Terminal Velocity

• ### Classwork

• We went through the homework and discussed terminal velocity in the context of a car accelerating until it reaches its top speed.
• ### Homework

• Read P32-33 and watch this video about stopping a car. Make notes on these, and bring to next lesson. The video is a bit annoying, because it uses units of miles per hour and feet, but otherwise it's ok.
• ## Terminal Velocity

• ### Classwork

• We observed some falling objects using multiflash photography (didn't work amazingly well). Here is a better example.
• We made notes on terminal velocity and watched this short mythbusters clip, though it doesn't exactly include a lot of physics.
• ### Homework

• Answer Q1 and 3 on P35 and bring to next lesson.
• Also you could optionally investigate the terminal velocities of different animals, and find out more about that spider I mentioned that is carried around the world on air currents because its terminal velocity is so slow.
• ## Crumple Zones

• ### Classwork

• I gave you some feedback on the homework, and the ideal exam-style answer.
• Remember it is not the change in momentum that matters in this case - it's the rate of change of momentum that determines the force.
• We built and tested crumple zones:

• ### Homework

• No homework.
• ## Momentum

• ### Classwork

• We went through the homework questions.
• We made some notes on forces and momentum, and force = change in momentum / time
• ### Homework

• Do Q1-2 on P27 and hand in on Monday.
• Do this anonymous survey before Monday.
• ## Momentum and collisions

• ### Classwork

• We did lots of examples of different collisions and answered the questions on this worksheet. IF you missed the lesson watch this video from 6:23 to about 11:30 and see P24-25 of the textbook.
• ### Homework

• Read P26-7.
• Answer Q1-2 on P25 and bring to next lesson.
• ## Momentum

• ### Classwork

• We introduced momentum and made some notes. Watch the first 6 minutes of this video and read P22-23 if you missed the lesson.
• ### Homework

• Do Q1-3 on P23 and hand in on Monday.
• ## Test

• ### Classwork

• We did some revision, then did the mini-test and marked it in the lesson.
• ### Homework

• No homework.
• ## Star life cycle

• ### Classwork

• We started to make detailed notes on the life cycle of a star.
• ### Homework

• Finish off your notes - they are here.
• Revise for a short (15min) test on fission and fusion next lesson.
• What you need to know is here and here.
• ## Brain Lecture

• ### Classwork

• There was no lesson due to the science week lecture.
• ## Nuclear Fusion

• ### Classwork

• We went though the homework and discussed when energy is and is not released from fission and fusion.
• ### Homework

• Nuclear fusion is what is happening inside stars.
• Watch this video which shows you just how big some stars can be.
• Watch this video about the life cycle of stars - we will make notes on it next lesson.
• If you have a spare hour then watch this video presented by Carl Sagan. He is brilliant.
• ## Chain reactions, Electricity from Nuclear Reactors

• ### Classwork

• We went through the HW (control rods and water as a moderator).
• We discussed chain reactions in the context of chain emails.
• We discussed the dangers associated with nuclear power.
• ### Homework

• Watch this video about nuclear fusion and make notes using P224-5 of the textbook.
• Answer Q1-2 on P225 and bring to next lesson.
• Note that the video above is pretty basic - if you want more detail then I recommend this video too.
• ## Going through homework

• ### Classwork

• We went through the homework from last lesson, and looked at the different things that can happen to neutrons in a nuclear reactor.
• ### Homework

• You need to make notes on the use of control rods and the role of water as a moderator (to slow down neutrons). The textbook and these videos should help you - they also explain how the reactor is used to produce electricity, but you don't need to make notes on that aspect - we'll do that next lesson.
• This video gives you a good overview of how a nuclear reactor works, but does not mention water as a moderator. This video says a bit more about water as a moderator - the link skips straight to 2:22 which is when he starts talking about it.
• Bring your notes on control rods and the use of water as a moderator to next lesson.
• ## Nuclear Fission

• ### Classwork

• We went through a couple of difficult questions from the test. Please ensure you do all your corrections and ask me if there is anything you still don't understand.
• We introduced nuclear fission - watch this video if you missed the lesson or need a recap - it's a good video except that every time he says 'atom' you should replace it with the word 'nucleus' - what happens to the rest of the atom (i.e. the electrons) is basically irrelevant.
• ### Homework

• Read P222-3 and Answer Q1-2.
• Bring to next lesson.
• ## Going through test

• ### Classwork

• We went through the test, though quite a few people weren't there.
• ### Homework

• No Homework.
• ## Recap + Test

• ### Classwork

• We looked at different situations where long and short half-lives are desired, and learned about carbon dating.
• We did the test.
• ### Homework

• No homework.
• ## Even more half-life

• ### Classwork

• We went through activity in a bit more detail.
• We went through the homework sheet.
• ### Homework

• Do as many of these past paper questions as you want to.
• Bring to next lesson - we'll go through them in the first half then do the test in the second half.
• ## More half-life

• ### Classwork

• We went through the graph from the homework, and considered in more detail the curve expected for dice with two faces marked.
• We measured the half-life of Protactinium-234 in the lesson.
• We defined activity and compared it to count rate.
• ### Homework

• Complete both sides of the Radioactive Half-Life worksheet and bring to tomorrow's lesson.
• ## Half-life

• ### Classwork

• We modelled radioactive decay using dice.
• ### Homework

• Plot a graph of your results (number of rolls on the x-axis, dice remaining on the y-axis).
• Find the half-life of your dice, in terms of number of throws (this can be a decimal - doesn't have to be a whole number of throws).
• Imagine we did the same experiment again, but the dice had spots on TWO of the faces instead of one. Sketch the shape you would expect for this graph on your other graph with a dotted line.
• Do all of this on one sheet of graph paper and hand in on Tuesday morning before registration. Make sure your name is on it.
• ## Nuclear equations and half life

• ### Classwork

• We did some questions about nuclear equations. Wach this video if you missed any of this.
• We started to introduce half-life.
• ### Homework

• Read P216-217 of the textbook. No need to make notes - we will add to our notes next lesson.
• Answer Q1-2 on P217 and bring to the lesson on Friday.
• There are a couple of videos about half-life here and here which you can watch if you are finding it hard, but they are not essential.
• ## Nuclear Equations

• ### Classwork

• We introduced nuclear equations for alpha and beta decay.
• ### Homework

• Watch and make notes on this video about radiotherapy.
• Read and make notes about how gamma sterilization works using this page (you don't have to make notes about the other methods like ethylene oxide and electron beams, but they are interesting to compare).
• Read about a few of the uses of gamma sterilization here - no need to make copious notes on this, but it's interesting to see the variety of applications.