Your SlideShare is downloading. ×
Thermal Energy And You
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Thermal Energy And You

3,206
views

Published on

Published in: Education, Technology, Business

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
3,206
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
40
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Thermal Energy and You By Ciara Eldridge Block 4
  • 2. What it Thermal Energy? • The dictionary definition of Thermal Energy would be considered “Total Kinetic Energy of the System.”
  • 3. Wait?! What’s Kinetic Energy? • Kinetic energy is the energy of motion. How much you have depends on the mass and speed of a substance. Thermal Energy refers to the Kinetic Energy of the microscopic particles(molecules). The Higher the temperature the faster the particles.
  • 4. You mentioned temperature, like how hot something is, right….? • Not exactly. Temperature is basically the average kinetic energy a substance obtains. • No, this is not considered “how hot.” Heat is in this context a verb and is the act of transferring Thermal Energy.
  • 5. Are there different types of heat transfer?? • Yes only 3, Conduction, Convection, and Radiation.
  • 6. Conduction?? • This is the transfer of thermal Energy by direct contact. ( or the transfer of energy through matter from particle to particle). • Examples: Touching a stove and being burned • -Ice cooling down your hand • -Boiling water by thrusting a red • -hot piece of iron into it • Hugging another and getting heated and hot after a while.
  • 7. Convection?? • Convection is the transfer of thermal energy from the movement of molecules. • Examples: Warm, rising air (thermals) due to heat rising from the earth. As the warm air rises, cool air comes in from the sides to take its place. This sets up a circulating flow of air. Also, watch a glass beaker of boiling water over a not-too-high Bunsen flame, or see a pan on the stove. Note the water is rising and falling in a circular manner.
  • 8. Radiation?? • Radiation is the transfer of heat from waves(Electromagnetic ). • Examples: A microwave. It sends out microwaves which radiate the water molecules in the object in the microwave and excite them and that's why the object will get hot. • visible light • infrared or ultraviolet
  • 9. So…How Do I Know How Much Thermal Energy I Have? • There is the total thermal energy equation of course. • (Tf-Ti)t . (mass)(Cp) • Tf-Ti (Temp. Final – Temp. Initial)is the change in temperature in your data • T is temperature • Cp is the Specific heat Capacity • “.” Is multiply
  • 10. The Process of Losing and Gaining • There are two changes to thermal energy: Endothermic change and an Exothermic change.
  • 11. Endothermic Change • This is a change in which energy is aborbed. • The substance takes in energy and the molecules move faster as result. • Examples: Ice cream gains energy and therefore thermal energy and proceeds to melt.
  • 12. Exothermic Change • This is a change in which energy is released. • The substance loses energy and the particles move slower as a result. • Example: The Atomic bomb explodes and releases energy.
  • 13. END! • YOU NOW KNOW ALL THE BASICS OF THERMAL ENERGY~~~~~~!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

×