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;
35 Cards in this Set
- Front
- Back
Energy |
is the ability to cause changes in matter; Can not be created or destroyed; the ability to cause motion or create change.
|
|
Kinetic energy
|
The energy an object has because its in motion.
|
|
Potential energy
|
The energy an object has because of it position or condition
|
|
Chemical energy
|
is energy that is stored in matter and that can be released by a chemical reaction. Example - Energy in food to move and stay warm.
|
|
Light energy
|
is a form of energy that can travel through space. A form of energy you can see.
|
|
Electrical energy
|
is energy caused by the movement of electric current.
|
|
Mechanical energy
|
is the total energy of motion and position of an object. Example Winding the key on the toy increases the toy's energy or the gears in a watch that make the hands move.
|
|
Sound Energy
|
is energy that travels as waves through vibrating matter.
|
|
Thermal energy
|
is the total kinetic energy of the particles in matter. (how fast the particles move)
|
|
transformation
|
Energy can change from one form to another.
|
|
Kinetic and Potential energy
|
categories of energy
|
|
vibrate
|
to mover back and forth
|
|
temperature
|
is a measure of the average kinetic energy of the particles in a substance.
|
|
Conduction
|
is the transfer of energy between particles that are in contact. Heat flows from the hot item to the cold item.
|
|
Convection energy
|
is the transfer of energy by currents in a liquid or gas.
|
|
Radiation energy
|
is the transfer of energy in waves without matter to carry it. Example: Heat from a fireplace.
|
|
Solar Radiation
|
is the most important energy source on Earth. Only a tiny fraction of this energy reaches Earth.
|
|
Combustion of fuels
|
is the second most important source of energy on Earth.
|
|
Geothermal energy
|
is thermal energy naturally produced under Earth's surface. Example: volcanoes, geysers, and hot springs
|
|
Heat energy
|
is the transfer of energy between substances at different temperatures
|
|
Electric Charge
|
is a property of a particle that affects how it behaves around other particles. (positive and negative charges)
|
|
Static electricity
|
Electric charges that build up on an objects.
|
|
Atoms
|
are the building blocks of all matter; are so small they cannot be seen without a special microscope; they are made up of protons, neutrons, and electrons.
|
|
Electric Current
|
The flow of electric charges along a path.
|
|
Repel
|
Two positive charges ____________________ each other.
|
|
Attract
|
A positive charge and a negative charge __________________ each other.
|
|
Proton
|
A ____________ has a positive charge.
|
|
Neutron
|
A _________________ is neutral because it has no charge
|
|
Electron
|
An __________________ has a negative charge.
|
|
Station
|
Electricity is produced at a generating ______________.
|
|
Conductor
|
Allows electricity to easily travel through them. (example: Copper Wire)
|
|
insulator
|
Prevents the flow of electricity. (Example: Rubber Gloves)
|
|
circuit
|
A complete pathway made of conductors through which electric current can flow.
|
|
series circuit
|
Electric current has only one path to follow to and from the energy source. (example: Christmas lights that if one light bulb goes out they all go out)
|
|
parallel circuit
|
contains two or more paths for electric charges to follow. (example: Each light has its own path for electricity to flow) |