Friday 5th September
TODAY WE ARE
LEARNING ABOUT
 Is light a wave and what determines the colour of light?
TODAY'S
KEY WORDS ARE
  • D_spl_c_m_nt
  • _mpl_t_d_
  • W_v_l_ngth
  • P__k
  • Tr__gh
  • _n_rgy
  • W_v_
  • P_rt_cl_s
  • C_l__r
  • R_fr_ct_d
  • Fr_q__ncy
  • Pr_sm
  • sk_tch  _  d__gr_m  _f  pr_sm  pr_ct_c_l  _nd  l_b_l  t_  sh_w  _ncr__s_ng  fr_q__ncy
  • d_spl_y  _n  b__rd  _nd  _s_ng  wh_t_b__rds  t_  pr_d_ct  c_l__rs  n__d_d  t_  m_k_  d_ff_r_nt  c_l__rs
    		•

    Memory Anchor:

    YOU WILL SHOW
    YOUR LEARNING BY...

    • Super Challenge:

      Stretch:

      Challenge:

    Key Questions:

    1. What is the maximum displacement of a wave called?
      • The maximum displacement is called the amplitude.
    2. How is the wavelength of a wave measured?
      • Peak-to-peak or trough-to-trough.
    3. What do waves usually transfer?
      • Waves transfer Energy from place to place.
    4. Why are water waves and light waves described as 'transverse'?
      • Water waves and light waves are transverse waves, because the displacement is perpendicular to the direction of the wave.
    5. What is refraction?
      • When light (or waves) waves change speed they change direction. This is called refraction.
    6. Why can light travel through a vacuum?
      • Light waves can travel everywhere including through a vacuum due to the fact that they don't need Particles in order to travel.
    7. What is another name for light?
      • Light is also known as electromagnetic radiation.
    8. What happens when all the colours of light mix?
      • When different colours of light mix they combine to form white light.
    9. Why are the colours of white light separated in a rainbow?
      • The different colours of light bend different amounts. Red is bent the least, Violet is bent the most.
    10. Why do different colours of light bend different amounts?
      • They all have different frequencies.
    11. How does the frequency of light affect how much is it bent by a prism?
      • The higher the frequency of light, the more it is bent by a prism.
    12. How do light waves travel if not by particles?
      • Light waves are displacements in electrical and magnetic fields.
    13. How does frequency affect the energy of a wave?
      • The higher the frequency the higher the Energy of the wave.
    14. How do the frequencies of red visible light and violet visible light compare?
      • Red has the lowest frequency (of visible light). Violet has the highest frequency (of visible light)
    15. What is the speed of light in a vacuum?
      • The speed of light through a vacuum is always 3x10^8 m/s
    16. How do the energies of red visible light and violet visible light compare?
      • Red has the lowest Energy (of visible light). Violet has the highest Energy (of visible light).
    17. What happens when colours of paint are mixed?
      • When colours of paint are mixed they subtract to form brown