Physics Unit 1

Physics Unit 1

1. U - Value

   • The lower the u-value, the better the material

2. Waves

   • All waves transfer energy
   • Transverse
   • Longitudinal - sounds Mechanical - movement

3. Electromagnetic Spectrum

   • Radio waves
     • Communication
   • Microwaves
     • Phones, Cooking (damage cells)
   • Infared
     • Optic fibre
   • visible light
     • photography