PS Unit 3A: Energy (8 days)

Essential Questions:

How can the wind be used to light a bulb?  

Why does a basketball bounce higher than a slice of bread?  

When a car has been warmed by the sun, why is the metal hotter than the plastic bumper?


Vocabulary:

Conduction : heat is transferred when two objects touch each other.

Convection: heat energy transfers as a result of the circulating motion of a fluid, usually a gas or a liquid

Radiation: direct transfer of heat energy by electromagnetic waves.

Joule: SI unit of energy

Heat: the transfer of thermal energy from one object to another because of a temperature change.

Temperature: measure of kinetic energy of all particles in an object

Chemical energy: is the energy that is released when the chemical bonds between atoms are broken.

Mechanical energy: can be stored energy or it can be energy of motion.

Nuclear energy: stored energy in the nucleus of an atom and is released when the nucleus of an atom is split.

Electrical energy: energy associated with the separation and movement of charged particles called electrons.

Radiant energy: radiant is electromagnetic energy

Thermal energy: energy contained within a substance is due to the movement of molecules.

Sound energy: energy is produced by vibrations and is transferred by waves.

 

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  Jun 14, 2012, 4:29 PM Emilie Siverling
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