Thermodynamics
The transfer of kinetic energy from one substance to another.
heat
The buildup of charged particles on the surface of an object, where they stay stationary until discharged.
static electricity
The flow of electric charge.
electric current
The two ends of a magnet, where most of the magnetic force is centered.
magnetic poles
Waves caused by vibrations that are transmitted through matter. If they are in the proper frequency, they can be perceived by the ear.
sound wave
A unit of energy. It is defined as the energy necessary to raise the temperature of one gram of water by one degree Celsius.
calorie
Opposite charges attract each other, and like charges repel each other.
law of charges
A material that allows for the transfer of thermal energy, or electric current.
conductor
Loops of wire that are coiled together, and produce a magnetic field when current is passed through it.
solenoid
The number of cycles, or wavelengths, per second for waves.
frequency
The transfer of thermal energy between two objects that are touching.
conduction
An electronic component that stores an electric charge.
capacitors
A closed, circular conducting path, that allows current to return to its origin.
circuit
A device that uses a moving magnetic field to generate electricity, converting mechanical energy into electrical current.
generator
Unit of measure used to express the intensity of sound.
decibel (db)
An object with a higher temperature will transfer heat to a lower temperature object, until they both reach the same temperature, at which point they are at equilibrium.
thermal equilibrium
Using the influence of nearby charges to redistribute the electrical charge of an object.
induction
The SI unit that measures the difference in electric potential.
volts (V)
An electric current that periodically reverses the direction that it flows.
alternating current (AC)
The variation in pitch of a sound caused by motion.
Doppler effect
A measure of the disorder, or randomness, present in a system.
entropy
A scientific instrument used to detect charge.
electroscope
An object that impedes, or slows down the flow of electrons.
resistor
The electromagnet that rotates in an electric motor.
armature
The area of a sound wave where the air molecules are spread out, that alternates with compressions.
rarefaction