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100 Cards in this Set
- Front
- Back
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the area of attraction or repulsion surrounding an electrically charged object
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electric field
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a substance or material through which electriciy cannot pass
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insulator
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electricity which is not moving (the buildup of electric charge)
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static electricity
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a circuit in which the electric charge may travel through different paths
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parallel circuit
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any object or material through which electric current easily passes
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conductor
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current is equal to force divided by resistance
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Ohm's Law
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a pathway for current electricity
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circuit
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creating a temporary electric charge on an object by bringing a charged object close to it
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induction
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a source of force or potential difference in an electric path
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battery
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a device used to detect electric charge
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electroscope
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unit used to measure the amount of electric current
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ampere
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an electrical circuit which includes a single path for the charge
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series circuit
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movement of static electricity from one place to another
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electric discharge
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kilowatt
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1000 jewels each second
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a device designed to prevent a circuit from overheating
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circuit breaker
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electricity in which the electric charge continually moves
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current electricity
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unit of electrical resistance
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ohm
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unit of electrical energy
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kilowatt-hour
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unit used to measure the force associated with the movement of electric charge
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volt
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a measure of the force pushing the electric charge
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voltage
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method of creating an electrically charged object by rubbing
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friction
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unit obtained by multiplying the current and voltage
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watt
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the positive or negative characteristic of something
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electric charge
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opposition to the flow of electric charge
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resistance
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a device which decreases the voltage of an electic current
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step down tranformer
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a device that produces an electric current by rotating a coil of wire in a magnetic field
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generator
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a device that uses an electromagnet to measure an electric current
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galvanometer
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a switch that regularly reverses the current in some motors
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commutator
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a unit used to measure magnetic field strength
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gauss
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a large wheel that rotates when pushed by wind, water, or steam
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turbine
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electric current that reverses its direction in a regular pattern
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AC motor?
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the properties and interactions of magnets
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magnetism
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the process of producing an electric current by moving a wire through a magnetic field
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electromagnetic induction
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groups of aligned atoms in a magnet
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magnetic domains
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electric current which flows only one difrection through a wire
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direct current
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a wire wrapped to form a coil and used to create magnetic fields
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solenoid
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a device made by wrapping an iron core with a current carrying wire
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electromagnet
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the regions on a magnet where the magnetic force is the greatest
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magnetic poles
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a device which increases the voltage of an electric current
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step up transformer
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type of magnetic poles which attract one another
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unlike poles
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a machine that changes electrical energy into mechanical energy
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electric motor
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a device which changes electrical energy into kinetic energy
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electric motor
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the area around a magnet where a force of attraction or repulsion exists
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magnetic field
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bonding in which the attraction is between oppositely charged ions
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ionic bonding
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bonding in which one atom loses electrons and another atom gains electrons
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ionic bonding
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bonding which involves the sharing of electrons
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covalent bonding
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Bonding that involnes the formation of positive and negative ions
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ionic bonding
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Bonding that includes mobile or free electrons
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metallic bonding
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bonding in which atoms combine to form molecules
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covalent bonding
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bonding that involves the overlap of the outermost energy levels of atoms
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covalent bonding
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bonding that occurs only between atoms of metals
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metallic bonding
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The changing frequency of a carrier wave
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FM
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cathode ray tube
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CRT
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amplitude modulation
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AM
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the pulsing variation in loudness caused by interfering sound waves
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beats
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a hollow air filled chamber which amplified sound
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resonator
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a vibration whose frequency is a multiple of the fundamental frequency
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overtone
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sounds that are deliberately used in a regular pattern
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music
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the differences among sounds of the same pitch and loudness
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sound quality
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the change in wave frequency due to motion
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Doppler Effect
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the amount of energy which flows through a certain area in a certain time
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intensity
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a system which uses the reflection of unerwater sound water
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sonar
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the area of attrction or repulsion surrounding a magnet
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magnetic field
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the entire range of electromagnetic wave frequencies
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electromanetic spectrum
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the specific electromagnetic wave frequency assigned to a radiostation
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carrier wave
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electromagnetic wavs sense by humans as heat
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infared
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electromagnetc waves with frequencies slightly higher than ultraviolet waves
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x-rays
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the particular set of frequencies at which a material vibrates
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natural frequency
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the main tone that is played and heard by a musical instrument
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fundamental frequency
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the system used to identify positions in the surface of the Earth
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GPS
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a device which transmits one radio signal and receives another
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transceiver
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state of matter with a definite volume but no definite shape
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liquid
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the amount of energy required to make something melt
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heat of fusion
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the spreading out of particles throughout a given volume until the are uniformly distributed
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diffusion
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solids in which the particles are arranged in a pattern
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crystalline solid
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vaporizaton which occrs ont he surface of a liquid
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evaporation
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a measure of the average kinetic energy of the partcles
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temperature
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the temperature at hich a liquid changes intoa solid
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freezing point
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an explanation how the particles of matter behave
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kinetic theory
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state of matter composed of positive and negative particles
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plasma
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temperature at which a definite shape and volume
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solid
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temperature at which a material boils
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boiling point
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solids in which the particles are not arranged in a pattern
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amorphous solid
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increasing size of something due to increasing temperature
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thermal expansion
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vaporization which occurs from within a liquid
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boiling
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the temperature at which something melts
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melting pint
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the amount of heat required to make something boil
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heat of vaporization
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state of matter with no definite shape or volume
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gas
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the total amount of kinetic and potential energy of particles
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thermal energy
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a solid changes into a liquid
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melting
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a liquid changes intoa gas
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vaporization
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a solid changes directly into a gas
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sublimation
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a liquid changes into a solid
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freezing
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a gas changes into a liquid
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condensation
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a gas changes directly into a solid
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deposition
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the particle that makes up protons and neutrons
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quark
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the number of protons in any atom of a particular element
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atomic number
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the name used to refer to protons, neutrons, and electrons
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subatomic particle
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the average mass of all the atoms of a particular element
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atomic mass
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the unit used to compare the mass of atoms
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atomic mass unit
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