L I G H T

1 / 8

# L I G H T - PowerPoint PPT Presentation

L I G H T. Light carries energy A light source (sun, light bulb) gives off light waves. www.howstuffworks.com/ light-bulb.htm. Light waves …. Are like the ripples in water when you drop a rock in it Go out in all directions Are called electromagnetic waves. Light Wave Lengths are….

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'L I G H T' - teneil

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
L I G H T
• Light carries energy
• A light source (sun, light bulb) gives off light waves

www.howstuffworks.com/ light-bulb.htm

Light waves …
• Are like the ripples in water when you drop a rock in it
• Go out in all directions
• Are called electromagnetic waves
Light Wave Lengths are…
• The distance between the tops of two adjacent ripples
Frequency is…
• The number of wave lengths that pass a point in one second. These are some examples of different wavelengths.
Electromagnetic Spectrum
• Electromagnetic waves are classified according to their wave lengths and frequencies
• There are many light waves that we cannot see
• We can only see a very small part of the electromagnetic waves
Electromagnetic Waves
• As the wave length decreases the frequency increases this decides what we can see.
Questions
• What is a light wave?
• What is a light wave length?
• What is meant by the frequency of a wavelength?
• How are electromagnetic waves classified?
• How much can we see of the electromagnetic spectrum of light?
Works Cited
• Imagine the Universe
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
• electromagnetic wave lengths
• NASA: Imaginers
• http://imagers.gsfc.nasa.gov/ems/waves2.html
• Animated wave lengths
• Visible light graphics
• Site Format
• http://www.siteformat.com/tutorials/photoshop/misc/waterripples.html
• blue ripple image