Hi all,
Merry Christmas (Happy holidays). Hopefully you have had a good start to the summer break. The holiday homework for Physics is the worksheet given out in class and the questions below. Have a great break and I will see you all in the new year.
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Hi all,
Welcome to the Step Up week. On this weebly you will find all sorts of resources that will help you learn more about Physics. If you have any questions feel free to leave a comment here, send me an email or see me at school. Enjoy the holidays Mrs McGrath Hi all,
Did you know that if you hover over the blog button at the top, you will see a F.A.Q page. This is a useful page with answers to some of the common questions I get asked every year, including questions about the exam, formula sheets and topics studied. I am also going to repeat a previous blog entry from a couple of years ago here, as this message may be important for some of you.... Hi all, Many of you will now be beginning to worry about finishing (or starting!) your holiday homework. Sometimes throughout this year (even right at the start) you are going to find times in this course when the content appears too hard for you. Feeling lost and confused is part of the learning process. It is actually a really important part because if you never go through a "zone of confusion" you will never have big leaps in your understanding of the content. What is important in these times is what you do in the confusion. Do you quit or do you keep trying and seek help? Try to resist the urge to quit. Seek assistance from myself, Ms Gallagher, your TA, your parents/guardians or even just a teacher you get along with. It doesn't mean that you should never quit a subject, just think through all the possibilities before you make that decision. I found this blog post by Leo Babauta about what you can do when faced with resistance (tough times) very useful, when I have been through challenging times myself. So I would encourage you to read it and reflect on what strategies you might been able to use when life throws challenges your way. Hi all,
Merry Christmas (Happy holidays). Hopefully you have had a good start to the summer break. The holiday homework for Physics is the worksheet given out in class and the questions below. Sorry about the delay as I have been on holidays too. Have a great break and I will see you all in the new year. Hi all,
Sorry this took so long. You can find the worked solutions to the chapter questions here http://catalogimages.johnwiley.com.au/Attachment/07314/0731408195/JP1_3E_TSK_Part_A.pdf The Chapters you have start on page 50 of the pdf. Hi all,
Today we looked at how measurements are made in Astronomy. I have embedded the videos in the 'Measurements' page. Key terms you should know include: - parsec - lightyear - arc second We also began looking at the stars. Check out the 'Stars' video for that. Key terms include: - brightness - luminosity - absolute luminosity - relative luminosity Don't forget that you need your experiment method in by the end of term. Hi all,
This week we have been beginning our look at Astrophysics. We started with looking at the beginning of the Universe, and how it might end. We will be continuing this as we progress in our unit on 'Are we alone in the Universe?' Hi all,
Today we went to a session about building apps. The website we used to plan our app idea was http://www.storyboardthat.com/ The websites recommended to begin to program your app: - http://www.tutorialspoint.com/ - http://appinventor.mit.edu/explore/ - http://www.makemedroid.com/en/ - https://developer.android.com/index.html Hi all,
On Thursday we worked on writing stronger aims and discussions. Our focus of the lesson was around what made a good aim. We talked about closed and open aims. A closed aim is an aim that is very limited in the scope for discussion, or doesn't really allow you to explore an idea. For example - To make a velocity-time graph - To learn Ohm's law - To calculate the velocity of a falling object These are all closed aims or weak aims. If you were to explore these ideas you would be very limited in what you could discuss. A better aim would include words like 'evaluate', 'explore', 'analyse' or 'interpret'. These words create a discussion because it gives you something to do. You are going to have to do more than collect some data. A great aim also has the audience in mind. Who would read your report (apart from your teacher)? This will help you determine what type of data you should collect and how you should discuss it. To practise this think about some experiments that you have heard of. If you haven't heard of any try here: http://kids.frontiersin.org/ or http://www.improbable.com/ig/ For example if we think about the study that found when dog's defecated they always stood in a North-South direction, we could ask who might find this information useful. Why might they have wanted to know this? It might be useful for zoologists or biologists studying animal behaviour. It might be useful for bushwalkers who got lost and needed something to orientate themselves. It might be useful for environmentalists because if they were seeing variations it might mean that the animal is experiencing stress due to the environment. Let's rewrite our original aims again using these idea - To analyse and interpret the movement on a cart using a velocity-time graph - To analyse different loads to determine if they are Ohmic or Non-Ohmic devices - To determine how the shape and material of parachutes affect the falling velocity of an object. Some of our aims are still weak because they did not really explore an idea but just acted out a known principal. To avoid this think what am I learning? Homework: Try writing your experimental aim for SAC 3. Examine your wording and your audience. Is it a strong or weak aim that opens or closes discussion. If it is weak or closes discussion try rewriting your aim again. If you want more practise we watched the following clip https://www.youtube.com/watch?v=QD3hbVG1yxM try and write an experimental report from it. Think about what would be the aim of the experiment. For your discussion - free write about the physics in the experiment. You can use the video to guide you. Make explicit links to the theory. If you include a diagram, refer to it specifically in the text (ie As shown in the diagram below.....). You could also write about what experiment you would now complete to learn more about this concept (once again use the video as a guide). Why would this experiment be the next step? Conclusion - Summarise what your discussion. This should be a summary of the aim. If it is not examine your aim. Was it a good aim? Did it close discussion. How could you fix this aim? Today's class- Newton's 3rd law Today we looked at Newton's 3rd law. We looked at how to explicitly state a Force using the descriptors of what is exerting the force on what. We then examined how the reaction force must be the opposite of this force, not just in direction but in the objects involved. Example: In the case of a book on a table. The weight force = F Earth on Book This means that whilst the table does push up on the book it is NOT the reaction force. The reaction force reverses the action force. So it would be F book on the Earth. Momentum We began looking at momentum and how this links to the movement equations and Newton's laws. You can read more under momentum. Homework: Complete the chapter review questions. Hi all,
Today we looked at 10.1, 10.2 and 10.3; examining Newton's 3 laws. We discussed the definition and subtle ideas behind the 3 laws. On Thursday we will be doing a short experiment around these ideas. |
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December 2017
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