Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Transcript of Energy
Energy- The ability to do work
Everything that is done in the Universe involves the transfer of energy
Earth is driven by two heat “engines”
The Earth's core
Electromagnetic energy-energy that is given off from all matter
not at absolute zero (-273° C, 0 Kelvin) where atoms have no motion.
•Travels in transverse waves- vibrate at right angles to the direction in which they move.
Transverse waves are named by their wavelength
Model of electromagnetic energy is Electromagnetic Spectrum p ________ESRT
•Visible light = Colors- The only part of the Electromagnetic Spectrum that can be seen by humans.
•Infrared- heating effects
Long wave electromagnetic energy- longer than visible light
Short-wave electromagnetic energy- shorter than visible light
Shorter waves are most intense
When electromagnetic energy comes into contact with matter it can be :
Refracted- bent- direction of waves change
•Reflected- bounces off
•Scattered- refracted in many directions
•Transmitted- passes through material
•Absorbed- taken into material
darker color absorbs more visible light
Rougher surface- more energy absorbed
If a material is a good absorber, it will also give off (radiate) easily
(Ex: If it heats up quickly in sunlight, it will cool quickly when the sun goes down.)
A GOOD ABSORBER IS A GOOD (re)RADIATOR!
Energy cannot be created or destroyed; it can only be transformed or transferred.