1 / 24

LIGHT !

LIGHT !. from bonfires to lasers. How many sources of light can you think of? In groups. Winning group gets to leave early . Sources of light. A bonfire. Hot objects give out light. The Sun. Sunset in Venice. Stars. Stars and galaxies give out light. Picture: Liverpool Telescope.

graham-knight
Télécharger la présentation

LIGHT !

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LIGHT ! from bonfires to lasers

  2. How many sources of light can you think of? In groups. Winning group gets to leave early

  3. Sources of light A bonfire • Hot objects give out light.

  4. The Sun • Sunset in Venice

  5. Stars • Stars and galaxies give out light. Picture: Liverpool Telescope

  6. Lightning

  7. A worm living in dark caves sends out light from its tail. • Liquid droplets form a string of shining beads to attract insects. tail of worm

  8. Some cold things give out light: • some fungi • glow worms • light sticks • LEDs • ‘glow-in-the-dark’ stickers

  9. Finding Nemo Fish!Also known as an angler fish which only the females luminesce.

  10. How do we see light sources? • Light travels from a source to our eyes. • We can see sources in a dark room.

  11. Can we see in the dark?

  12. How do we see things that are not sources of light? • Light bounces off and some reaches our eyes.

  13. Electromagnetic RadiationCharacteristics of Waves

  14. Electromagnetic RadiationCharacteristics of Waves

  15. Electromagnetic RadiationThe Spectrum

  16. Electromagnetic RadiationThe Spectrum

  17. Electromagnetic RadiationLine Spectra

  18. Really Confusing Stuff!

  19. More Really Confusing Stuff – Aren’t you excited for chemistry

  20. How do light bulbs work? Click Here for Link

  21. How do fluorescent lights work? Click Here for Link 1 Click Here for Link 2

More Related