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Found 14 results

  1. Hi, I'm doing my G4 project (presentation), and I have students from biology and physics with me in a group. We've got a topic ENERGY (we can't choose\change). How do we make a project out from these subjects with that topic? Combining biology and physics into energy. Any ideas would help! Sincerely, Anastazja
  2. Hi all. I have been told to come up with a subject and a rough research question for my EE. I spent the whole day reading and having classes about the EE, and I have decided that I am going to be writing it on Biology. I already know that this subject is quite hard to get a good grade on, however it is the only topic in which I am passionate about enough to write my EE. (I am not willing to change subject or topic). So far I have a few rough ideas on what I want to do: Specific diets and their impact upon heart problems Something on hormones Why certain vitam
  3. Hey do any of you know where I can find practice question for option C? So far I've only done the specimen paper and questions from the oxford textbook. Also are there any data analysis tips/tricks I should know about for paper 3? Thanks!
  4. Hey All! I'm doing the Energy option this may in my exam, and as I've been revising I realised that there are a lot of redox reactions to be covered for the rechargeable cells and fuel cells HL topic. I just wanted to know, are we expected to memorise these reactions and be able to reproduce them in the exam or just understand how they work (meaning that we indirectly talk about them or have the equation given and then do some work with it)? Thanks! P.S. @Msj Chem: Thanks so much for your videos! We didn't have too much time to cover the option in school, so I
  5. Hi, My school has selected medicinal chemistry for the options topic, however, I'm currently struggling with it due to it containing excessive amounts of biology and organic chemistry. I'm doing HL physics and think I would do a lot better at the energy option. Is it possible for me to answer the energy option in paper 3 instead? For maths HL we are only given questions on our option topic and for English we have to refer to the texts selected by our school. However, for sciences I know that the paper 3 contains all topic questions. Would the examiners still mark the questions I've compe
  6. Hey everyone! As the title suggests, the syllabus says that we should be able to discuss "how the choice of fuel is influenced by its energy density or specific energy." I understand that a higher energy density and specific energy means it is an effective fuel, but how about when there's two fuels, one with a higher energy density and lower specific energy versus one with a lower energy density and higher specific energy? Which fuel would be the better choice? I think I can save another post by asking my other question here: For everyone else doing Energy, we are aware that it is a new o
  7. Hi everyone. I've written two short guides on IBS: Time managementPreventing and managing stressThe following is about how to create realistic plans. It's adapted from my blog. I hope it helps. There are two easy ways to create feasible plans: Pretend you have 30% the energy you usually have Copy a plan you’ve completed successfully beforeNote that I’ve left out the most obvious way – looking at a calendar and the things you have to do then filling up the hours. Why don’t we stick to plans? It’s simply too difficult For some reason, if we imagine a free day we imagine a lo
  8. Using the data below, estimate the mass of water turned into steam as a result of this heating process. initial mass of water = 0.30 kg initial temperature of the water θ = 20°C specific heat capacity of water = 4.2 × 103 J kg–1 K–1 specific latent heat of vaporization of water = 2.3 × 106 Jkg–1 The no.s are superscript in some of them.... And pls can anyone solve the mass of the water turned into steam?
  9. I have started thinking about my EE about physics. I would like to do it about how does air friction affect acceleration on rollercoasters. I have already collected the data but I don't know if the topic is suitable enough to do an EE. Is the level enough for an EE? How can I make it more narrow and increase the level? Would it be recommended to do a 3D graph with the data I have collected, or it wouldn't be suitable for the physics area? Thanks!
  10. So I'm feeling really stressed out, as the question I chose for a design lab didn't really work out. (I had issues with the data.) I want to did an experiment and collected data after the prompt: Investigate a bouncing ball. I chose to look at kinetic and potential energy of the ball, then the total amount of energy possessed by the ball. But... I don't know how to word my question. I can't really change my experiment to word it how other sites are suggesting, so I'm kind of lost. I've done all the calculations, but I need some sort of question. Help? EDIT: Is this a clear and focused research
  11. So my Group 4 project is thermal energy and all I have been able to come up are the ideas all my physics and chemistry teachers call "simple". That's a bad thing so I need to come up with an idea for my Group 4 Project about thermal energy in chemistry or physics. This is my first time doing the G4 project and I need major help coming up with an idea because the topic is kind of to think about. Thanks!
  12. Hey everyone, I'm revising for my Biology mocks and one of the topics is units used in energy pyramids. Is it J kg-1m-2year-1? I can't seem to find it anywhere in my notes. Thanks!
  13. Since this is a new addition to the syllabus (well, since 2009), there aren't many practise exam questions on the topic. None that I can find anyway. In addition, the topic is rather large and I find it painfully boring to just read through the chapter and make notes. Thus, I was wondering if any of you could share some tips on how you're/you've tackled the topic and any useful/videos etc. From what I've seen, this is a topic that comes up quite often and forms a large part of paper 1 (which I'm terrible at) so I want to make sure I know it inside-out. Thanks in advance
  14. I need something to do with energy. Not the KE PE kind but like generating energy and all those green energy type of topics I need to submit it today!! Please help
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