Energy unit vocabulary Flashcards
the ability to do work and to cause change
Energy
the energy an object has because of its motion.
Kinetic energy
The energy stored by an object as a result of its position. For example, a roller coaster at the top of a hill has potential energy.
potential energy
Heat energy produced when the molecules of a substance vibrate.
Thermal energy
The energy stored on the chemical bonds of molecules released during a chemical reaction. For example, a car engine uses chemical energy stored in gasoline, and moving people use chemical energy from food
Chemical energy
Visible light energy or light bulb energy
light energy
Audible energy. For example, when you talk, play musical instruments or slam a door, it releases sound energy.
sound energy
Electrical energy exists when charged particles attract or repel each other. For example, television sets, computers and refrigerators use electrical energy.
electrical energy
Energy created by vibrating particles that create waves that travel through space and time.
Nuclear energy
energy of motion and position of an object (potential energy + kinetic energy)
mechanical energy
energy that travels in waves; have electrical and magnetic properties
electromagnetic energy
states that energy is never created or destroyed, it just changes its form.
Law of conservation energy
converts mechanical energy into electrical energy
generator
a degree of hotness or coldness that can be measured.It is how fast the atoms and molecules of a substance are moving. It can be measured in three scales (Fahrenheit, Celsius, and Kelvin).
Temperature
is the transfer of heat by direct contact (particles collide)
conduction
is heat transfer through space by electromagnetic waves
radiation
is the flow of currents in a liquid or gas
convection
a material that easily transfers heat
Thermal conductors
a material that does not easily allow heat to pass through
thermal insulators
a chemical reaction that produces heat and light
combustion
