energy
Download
Skip this Video
Download Presentation
Energy

Loading in 2 Seconds...

play fullscreen
1 / 10

Energy - PowerPoint PPT Presentation


  • 121 Views
  • Uploaded on

Energy. SI units. energy = joule (J) = 1 Nm = 1 kg ·m 2 /s 2. Conservation. Energy can be converted from one form to another, but it cannot be created or destroyed in an ordinary chemical or physical change. Two big classes. Kinetic – energy of motion Potential – stored energy.

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

PowerPoint Slideshow about ' Energy' - mervyn


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.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
si units
SI units
  • energy = joule (J) = 1 Nm = 1 kg·m2/s2
conservation
Conservation
  • Energy can be converted from one form to another, but it cannot be created or destroyed in an ordinary chemical or physical change.
two big classes
Two big classes
  • Kinetic – energy of motion
  • Potential – stored energy
potential energy
Potential Energy
  • Energy stored due to
    • position (where it is)
      • Example: GPE, spring energy
    • composition (what it is made of)
      • Example: chemical, nuclear
energy1
Energy
  • thermal/heat (more later)
  • electromagnetic / radiant / light
  • Mechanical energy ME = KE + GPE
  • electrical
  • sound
energy equations
Energy equations
  • KE = mv2/2
  • GPE = weight x height = mgh
  • ME = KE + GPE
slide8

Radiation

Conduction

Matter not required

Can occur in space

Waves

Objects touch each other

Collisions of atoms

Heat transfer

From hot to cold

Matter required

Currents in a fluid

Different densities created

Objects touch each other

Matter required

Matter not required

From hot to cold

Can occur in space

Currents in a fluid

Collisions of atoms

Different densities created

Waves

Read pages 280-284.

Directions: Put phrases of the other box into the Venn diagram. Zones may have no phrases, one phrase, or more than one phrase. Use all the phrases

Convection

heat v temperature
heat -v- temperature
  • Heat = total amount of energy of moving particles
  • Temperature = average energy of the moving particles.
ad