Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
Energy
|
the ability to cause a change in matter
|
|
|
matter
|
anything that takes up space and has mass
|
|
|
The Law of the conservation of Energy
|
says that energy can change forms but it can never be made or destroyed
|
|
|
2 kinds of energy
|
kinetic and potential
|
|
|
Kinetic Energy
|
the energy of motion - the more you have the faster an object will move
|
|
|
potential energy
|
the amount of energy an object has because of its conditon or position.
|
|
|
Energy transfer
|
When energy moves from one place or object to another, such as when a person lands on a trampoline.
|
|
|
solar energy
|
energy that comes from the sun
|
|
|
light
|
visible radiation
|
|
|
chemical energy
|
stored energy that can be released by a chemical reaction
|
|
|
mechanical energy
|
the combination of all the potential and kinetic energy that something has
|
|
|
electric energy
|
energy that comes from an electric current
|
|
|
heat
|
the transfer of thermal energy between objects with different temperatures
|
|
|
systems
|
a set of parts acting together as a whole
|
|
|
conduction
|
direct transfer of thermal energy from one object to another
|
|
|
convection
|
the transfer of thermal energy by the movement of a gas or liquid
|
|
|
radiation
|
the transfer of energy by electromagnetic waves moving through space or matter
|
|
|
reflection
|
heat or light bouncing off an object
|
|
|
fossil
|
remains of past life found in sedimentary rock
|
|
|
resource
|
a material that can satisfy a need
|
|
|
nonrenewable resource
|
a resource that cannot be replaced in a reasonable amount of time
|
|
|
conservation
|
saving something so that it doesnt get used up.
|
|
|
renewable resource
|
a resource that can be replaced in a reasonable amount of time
|
|
|
pollution
|
anything that dirties or harms the environment
|
|
|
what makes temperatures rise
|
the particlels move faster
|
|
|
insulator
|
slows the movement of thermal energy. In cold weather, we wear clothing such as wool or fleece.
|
|
|
good conductors
|
most metals especially copper.
|
|
|
bad conductors
|
wood and plastic
|
|
|
some non renewable energy sources
|
coal, oil and natural gas
|
|
|
some renewable energy sources
|
wind and solar energy and the hydroelectric power
|
|
|
acid rain
|
when fossil fuels are burned and gases combine with rain
|
