Physics

  1. Direction of transverse wave and give e.g.
    • Perp to direction of energy transfer
    • Light wave
  2. Direction of longitudinal and give e.g.
    • parallel to direction of energy transfer
    • sound wave
  3. How can you tell from a graph that the freq of the wave is constant
    if the wavelength stays the same
  4. Which EM wave has the shortest wavelength
    gamma
  5. which EM wave comes from a coal fire
    infrared
  6. which Em wave can bemused to sterilise medical equipment
    gamma
  7. Which Em wave has the longest wavelength
    radio
  8. how do you find the freq of waves
    time/ amount of waves altogether
  9. how do you find the wave speed
    freq x wavelength
  10. properties of light?
    • travles in straight lines
    • travels at around 300,000km/s
    • far faster than sound
  11. In reflection, what angles are equal?
    incidence and reflection
  12. what is the rhyme for the order of EM waves
    remember my instruction under X-ray glasses
  13. Define refraction
    the change in direction of a beam of light as it travels from one material to another.
  14. Explain dispersion
    All colours of light travel at the same speed in air. Different colours travel at different speeds in glass. This means they bend by different amounts when they pass from air to glass.
  15. what is the focal point
    where the image being produced is at its sharpest.
  16. what is the critical angle
    where the beam of light reflects instead of refracts
Author
Anonymous
ID
336554
Card Set
Physics
Description
physics
Updated