P1h Stable Earth

You need to be able to:

• Explain how seismic waves travel, the problems they cause and how scientists use the waves to gather information about Earth's structure
• Explain the effects of UV radiation on various skin types (including calculating how long someone can spend in the sun safely, how to protect humans from Uv radiation and the publicity around UV exposure)
• Describe the discovery, causes of, and response to the ozone hole

1. Notes on earthquakes from BBC Bitesize
2. 
3. 
4. 
   
5. Lots of earthquakes links from Cyberphysics.co.uk
6. Another blog all about earthquakes...
7. 
8. 
   Effects of, and barriers to UV.
9. The ozone layer hole - A multimedia online journey...
10. 

 

P1f Data Transmission

You need to be able to:

• Compare and contrast analogue and digital signals (what they are, how they work with reference to TV remotes, the digital switchover, advantages of digital)
• Explain uses of IR (passive sensors, thermal imaging, carrier of information)
• Describe the transmission of light in optical fibres

1. 
2. The digital switchover website 
3. Video on how infra red remotes work
4. Uses of IR

P1e Cooking and Communicating using Waves

You need to be able to:

• Explain how microwaves and infrared waves transfer energy to materials (referencing cooking and how the different waves work)
• Explain how mobile phones use microwaves to work
• Describe the pros and cons of mobile phone use (including conflicting opinions and how scientists are trying to resolve them)

1. 
   
2. Notes on communicating using waves from BBC Bitesize
3. How mobiles work
4. Pros and Cons of using mobiles
5. More pros and cons....

 

P1g Wireless Signals

You need to be able to:

• Explain how reflection, refraction and diffraction of waves can be an advantage and a disadvantage for communication (making it work, interference)
• Describe common uses of wireless technology and why it is advantageous
• Explain the advantages and disadvantages of DAB

1. 
2. 
3. Notes on wireless communication from BBC Bitesize
 
4. 
   
5. Notes from BBC Bitesize on wireless signals and DAB

P1d Light and Lasers

You need to be able to:

• Describe how light has been historically used for communication
• Explain what total internal reflection is and how it is used in fibre optics (light and IR)
• Explain the type of light produced by lasers, and how they are used in CD players

2. Historical light signals
3. ...and morse code
4. TIR notes and animation
 
5. How a CD player works notes
6. 
7. Light and lasers quiz

P1c A Spectrum of Waves

You need to be able to:

• Describe and calculate various values for transverse waves (wavelength, amplitude, frequency, wave speed, using values from diagrams)
• Describe the wave types in the electromagnetic spectrum and their uses (specifically communications uses)
• Describe and explain reflection, refraction and diffraction of waves

1. 
   
2. Some practise wave equation questions...
3. ...and some more
4. 
   
5. Games using the key vocabulary
6. Notes on reflection, refraction and diffraction

P1b Keeping Homes Warm

You need to be able to:

• Explain heat energy transfer by conduction, convection and radiation (linked to home and appliance design and including absorption and emission of IR)
• Explain why heat conservation methods work, and evaluate different methods (air as an insulator, maximising heat energy to inside, minimising heat energy transfer to atmosphere, payback time)
• Use the fact that energy is conserved in energy efficiency calculations

2. Another blog covering conduction, convection and radiation
3. How surfaces affect absorption and emission of. IR  

P1a Heating Houses

You need to be able to:

• Explain the differences between heat energy and temperature
• Explain thermograms and state change graphs in terms of temperature and heat energy
• Use specific heat capacity and specific latent heat equations to calculate various quantities (energy in J, mass in kg, temperature change in oC)

2. 
3.  
5. Specific heat capacity calculations tutorial