Presentation is loading. Please wait.

Presentation is loading. Please wait.

Energy: Conservation and Transfer

Similar presentations


Presentation on theme: "Energy: Conservation and Transfer"— Presentation transcript:

1 Energy: Conservation and Transfer

2 Matter Anything that takes up space and has mass

3 Mass The amount of matter in an object The gram is the metric unit for mass

4 Physical Properties of Matter
Observable characteristics that can change without changing their chemical composition. Like the Commutative property in math. Example: Shredded paper, cut up fruit, lava

5

6 States of Matter Condensation Solid Liquid Gas Plasma

7 Melting Point – The temperature at which solid matter turns to liquid.

8 Boiling Point – The temperature at which liquid matter experiences the same pressure as the atmospheric pressure. Freezing Point – The temperature at which liquid matter turns to solid.

9 Chemical Property A change in matter that produces new substances.
Examples: Ability to burn Wood to ash Ability to rust/ react with oxygen Metal to rust Ability to form a new substance with chemical composition different than the original substance. Digestion of food

10 Heat The transfer of energy between objects that are at 2 different temperatures.

11 Conduction Conduction is the transfer of heat by the collision of particles; the particles must touch in order to transfer heat. Metals are considered good conductors since they can speedily transfer heat. Stone is also a moderately good conductor, but wood, paper, air, and cloth are poor heat conductors.

12 Convection  Transfer of heat from one place to another by the movement of fluids or gases.

13 Radiation The energy radiated by electromagnetic waves through empty space as a result of their temperature; heat travels outward from its source. 

14

15   Transfer to convey or remove from one object, place, person, etc., to another.

16 Electromagnetic Waves
Electromagnetic waves are formed when an electric field (shown as blue arrows) couples with a magnetic field (shown as red arrows). When you listen to the radio, watch TV, or cook dinner in a microwave oven, you are using electromagnetic waves.

17 Thermal Energy Thermal energy is the energy of a substance due to the movement of its atoms or molecules.  More the molecules are moving about, the higher the temperature.

18 Convection Cell Moving body of fluid due to the rise of heat and fall (gravity) of cool gases until the heat is no longer heated. (Ex. Current/cycle) Convection cells are responsible for making macaroni rise and sink in a pot of boiling water. One of the forces that contributes to lava erupting from a volcano is convection.


Download ppt "Energy: Conservation and Transfer"

Similar presentations


Ads by Google