Chapter 4 energy luxembourg
Upcoming SlideShare
Loading in...5
×
 

Chapter 4 energy luxembourg

on

  • 202 views

 

Statistics

Views

Total Views
202
Views on SlideShare
198
Embed Views
4

Actions

Likes
0
Downloads
0
Comments
0

1 Embed 4

http://comenius.i5o.pl 4

Accessibility

Categories

Upload Details

Uploaded via as Microsoft Word

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Chapter 4 energy luxembourg Chapter 4 energy luxembourg Document Transcript

  • Chapter 4: Energy1. DefinitionEnergy = the ability of a physical system to dowork on other physicalsystemsphysical quantity, abbreviation: E, unit of measurement: J2. Different forms of energychemical energy: decomposing of molecules, digestionthermal energy: reactions in which warmth is set freemechanical energy: energy associated with the motion and position of an objectelectrical energy: energy produced by electricitysee exercise3. Energy sources= all sources delivering energy2 groups:- fossil energy sources: coal, petroleum, natural gas- renewable energy sources: solar, wind, hydroelectric, agriculturalbiomass, geothermal, tidal
  • 4. Origin of energyPhotosynthesis – see working scheme