I'm sure some of you have found thsi already, but this website has some good revision notes. Everyone should also make sure they get a revision guide form the school shop for one pound! This is your homework if you haven't got one already.
Finally, there are going to be weekend revision sessions starting this weekend on Saturday from 10 - 2 with breaks for food, check your parentmail for details.  Well worth showing up for a couple of hours!!!!!

10y4 Homework

Complete the questions on this link, then check your answers using the next page. Make sure you show your working for marks in the exam, but also so you can pick up any mistakes now. Bring these into class on Friday - http://www.gcse.com/waves/vfl.htm

10y4 Physics - Waves

1. Explain what 'refraction' means - http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html
2. What happens to waves during 'diffraction'? - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/waves/generalwavesrev5.shtml
3. What happens to diffraction when the gap the waves travel through is smaller? - http://www.launc.tased.edu.au/online/sciences/physics/diffrac.html
4. What is diffraction important for? - http://www.launc.tased.edu.au/online/sciences/physics/diffrac.html
5. Try the activity and quiz on this link, writing down the relationship between wavelength and frequency - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/waves/generalwavesact.shtml
6. What range of frequencies can humans hear? - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/waves/soundandlightrev1.shtml
7. What would be different when an insturment makes a low pitch sound compared to a high pitched one? - http://www.physicsclassroom.com/class/sound/u11l1c.cfm
8. What is the formula for working out the speed of a wave? - http://www.physicsclassroom.com/class/waves/u10l2e.cfm
9. Explain this picture using the words 'refraction' and 'wavelength'.

1. Watch this video (it continues in more 10 minute sections on youtube).  Write a written explanation about how soundwaves help Ben see things using the terms particles, reflection and amplitude.


10x2 Chemistry Polymers/Plant Oils

1. What can this polymer do? What is the name for the molecules used to make it? - http://news.discovery.com/tech/self-healing-plastic-110421.html
2. Outline two differences between making ethanol from ethene or from plant material (sugar) - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/oils/polymersrev4.shtml
3. Explain what saturated and unsaturated vegetable oils are - http://science.howstuffworks.com/innovation/edible-innovations/fat2.htm
4. What form to saturated oils take at room temperature? - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/plantoilsanduses/vegoilsrev2.shtml
5. Which type of oil (saturated or unsaturated) are better for people? Why is this? - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/plantoilsanduses/vegoilsrev2.shtml
6. Watch the animation here and complete the quiz, drawing and labelling the structure for vegetable oils from the picture below - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/plantoilsanduses/vegoilsact.shtml 
7. How are the two ends of an emulsifier different? - http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/designerproducts/foodanddrinkrev4.shtml
8. Does water or oil have a higher boiling point? why is this? - http://van.physics.illinois.edu/qa/listing.php?id=1428
9. Complete this activity. What is the name given to the reaction that makes polymers from monomers? - http://www.sciencemuseum.org.uk/onlinestuff/games/team_plastics.aspx 
10. Try the activities here - http://games.co.za/oil-strike.html , http://games.co.za/oiligarchy.html , http://anatomforeveryone.org/phpmyadmin/wordpress/?page_id=44 ,

10y4 physics electricity/waves

Today we're going to finish the electricity section and start looking at waves. Answer the following:

1. What kind of fuel is being used to generate electricity here? Is it sustainable? - http://www.climatespectator.com.au/commentary/little-pig-went-carbon-market
2. How many kilometres of overhead powerlines are there in England and Wales? - http://www.emfs.info/Sources+of+EMFs/Overhead+power+lines/
3. Briefly explain how tidal power can be used to generate electricity - http://www.darvill.clara.net/altenerg/tidal.htm
4. What are waves? - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/waves/generalwavesrev1.shtml
5. Describe the main difference between mechanical and electromagnetic waves - http://www.physicsclassroom.com/class/waves/u10l1c.cfm
6.  Explain the difference between a longitudinal and a transverse wave - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/waves/generalwavesrev2.shtml
7. Explain whether this wave is mechanical or electromagnetic, and transverse or longitudinal (giving reasons why):                                       
8. Define wavelength - http://searchnetworking.techtarget.com/definition/wavelength
9. Try this activity, and make some notes on how renewable sources of energy are different to non-renewables - http://www.electrocity.co.nz/
10. Try this activity, and list some ways we can use less energy to help prevent climate change - http://www.bbc.co.uk/climate/adaptation/jack.shtml

REMEMBER THE HOMEWORK, YOU CAN START NOW IF YOU WANT.

Physics Nuclear Power

Watch this video for homework, and outline the major problems associated with nuclear power. Is it renewable or not?