grade 10 physics

• what are electromagnetic waves 


  waves that have both electic and magnetic parts and do not require a medium
• Which wave length is longer Blue or Red and give example

  Blue are shorter and have more energy ex Gamma rays
• What does LASER stand for

  Light Amplification Simulator Emission Radiation
• What is Incandescence light 


  Light produced through a high temp and high melting point ex light bulbs
• What is electric Discharge

  Light that is produced by processing electricity through gas ex lighting
• What is Phosphorescence

  light that absorbs UV light that is released over a period of time ex glowing paint
• What is Fluorescence light

  Is the UV absorbtion that immitates the relese of light ex CFL light
• What is Chemiluminescence

  A chemical reaction that doesn't produce heat ex glow sticks
• What is Bioluminescence

  Living organisms that produce light but light with not heat ex algee
• What is Triobluminescence


  Using friction to produce light ex cutting a dimond or REM candy
• What are the advantages and disadvantages of Incandescent bulbs 


  -Inexpensive, produce light fast
• Advantages and Disadvantages to CFL bulbs 


  -More efficient, easy to handle and contains mercury and is difficult to dispose
• Advantages and Disadvantages to LED bulbs 


  -most efficient, lower electricity cost but very expensive
• Example of diffuse reflection 


  water with a lot of waves
• What is a SALT

  Size Attitude Location Type
• Converging mirrors 


  are concave and meet at a common part
• Diverging mirrors 


  convex and spread apart
• What is C


  the centre of curvature which surface has been used to make a mirror
• What is V 


  the vertex the point where the principal axis meet the mirror
• What is F 


  point which the light rays are parallel to the principal axis then are reflected convex
• What is N 


  N = the index of refraction
• What does C stand for 


  Speed of light in a vacume
• What does V stand for


  The speed if light in a given medium