Shared Flashcard Set

Details

Competency 33 Physical Science
TExES EC-6 Generalist Test
22
Education
Professional
11/02/2010

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Cards

Term
law of conservation of energy
Definition

states that energy:

  • is never lost
  • cannot be created
  • cannot be destroyed
  • but ti can change form
Term
when a fan is turned on
Definition
an example of electrical energy changing to mechanical energy
Term
when a light bulb is turned on
Definition
an axample of electrical energy changing into heat energy and radiant energy would be...
Term
how energy transfers
Definition
  • photosynthesis
  • weather
  • food webs
  • energy pyramids

are examples of...

Term
glucose and oxygen
Definition
sunlight + water + carbon dioxide equals this...
Term
solar energy is converted into chemical energy
Definition
photosynthesis is an example of the conservation of energy in which...
Term
conduction
Definition
transferring heat/electricity through a substance; ex. cooling system in a car
Term
convection
Definition
  • when heating water on a stove, the hot water rises in the pot while the cooler water sinks 
  • when cold and warm air collides  creating tornados and hurricanes
Term
radiation
Definition
energy traveling at a high speed; ex. cell phones, nuclear weapons, sunshine, microwaves
Term
radiation
Definition
which process describes the transfer of thermal energy to earth?
Term
sources of electrical energy
Definition
  • fossil fuels
  • solar energy
  • hydroelectric plants

are all examples of...

Term
radiation
Definition
energy transferred through electromagnetic waves
Term
radiation
Definition
the heat you feel when you place your hand above a hot burner is an example of...
Term
convection
Definition
when hot water rises in a pot while the cooler water sinks is an example of...
Term
conduction
Definition
a pot of water that sits on a hot burner and the heat is transferred into the pot is an example of...
Term
chemical to heat energy
Definition
what energy transformation takes place when a match is lit?
Term
conduction
Definition
as energy from the sun warms the surface of the earth, the air near the surface is heated by...
Term
in waves
Definition
how does energy from the sun travel to the earth?
Term
convection
Definition
energy transferred when mixing gas or liquid
Term
mechanical
Definition
this type of energy ca be potential or kinetic.  it has the potential to move.
Term
mechanical energy
Definition
hydroelectric plants  use this energy of falling water to spin turbines of electric generators
Term
electrical energy
Definition
the electric generators transform the mechanical energy into this, which can be sent over power lines
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