Science Quiz / Science Exam Semester 1 2013-14 Review Part 2

Random Science or Definition Quiz

Terms that will be on the exam

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DefinitionTerm
the energy associated with motion
any device that consumes voltage, causes a drop in potential (or 'load')
a material whose domains can be forced to align by a nearby magnetic
atmospheric glowing caused by trapped particles near the poles
source of zero potential, large enough to absorb the potential of something else and still remain at zero
the loss of static electricity
stops/starts the flow of current, 'open' = no current, 'closed' = current flows.
naturally occurring magnets
an electrochemical cell in which the electrolyte is a liquid
selected points that are part of the data (on the line) but between graphed (measured) data points
a resource that exists in a fixed, limited amount
materials with low resistance
a cluster of magnetically aligned atoms
called a rheostat, can change the amount of resistance
used to indicate electric current, ammeters and voltmeters are specialized ones of these
the rate at which energy is converted from one form to another
the difference in electric potential between 2 positions
a resource that can be replaced at a similar rate to that which it is used at
the movement of electrons by polarization onto/off of a neutral object due to the electric field of a nearby charged object
regions of trapped particles, 1k 25k km above Earth's surface in space
a liquid that conducts electricity because it contains ions
the build-up of electric charge on an object
a separation of charges
DefinitionTerm
a current that oscillates, more efficient to produce and transmit over distances but is less 'usable'
converts mechanical energy to electrical energy
usually a wire, carries a current, neglible 'R'
a current that is steady, less efficient to produce and transmit over distances but is more 'usable'
opposition to the flow of charges through a material
metals whose domains quickly lose their alignment without external influence
a set of two or more electrochemical cells
the multi-loop iron core assembly of a motor
a fundamental property of matter associated with protons and electrons
the difference in direction between the magnetic pole and the geographic pole
the part of the electrode that is connected to a circuit
a path through which electric charges can flow
materials whose domains tend to stay aligned
the process of generating an electric current from the motion of a conductor through a magnetic field
selected points that are part of the pattern (on the line) but beyond the graphed (measured) data points
a field around a charged particle that exerts a force on another charged particle
refers to the properties of magnets and magnetic fields
the flow of charges through a material
the two metals in an electrochemical cell
accidentally discovered the phenomenon of chemical energy converting to electrical energy
materials with high resistance
used to map the strength, shape, and direction of magnetic fields
coal, oil, natural gas (and petrol & diesel)
DefinitionTerm
part of magnet where the magnetic field goes in/out
the amount of potential energy per unit of electric charge
chemical source of direct current, source of constant current at a constant voltage, source of potential difference in a circuit, more than one together = 'battery'
for most conductors, the current is proportional to the voltage
a device that measures the drop in potential between two points in a circuit, very high resistance, used in parallel with the rest of the circuit
a device that measures the amount of current, very low resistance, used in series with the rest of the circuit
giving up excess charge to something of a much larger capacity
the region of Earth's magnetic field in space
states that charges are never created or destroyed; they are only transferred from one location to another
discovered electromagnetic induction
the flow of electrons through a material
a simple mechanical device for detecting the presence of an electric charge (or field)
a polarized object
a device that uses electric current to continuously rotate an axle. electric to mechanical.
the energy associated with electric currents
an electrochemical cell in which the electrolyte is a chemical paste
recognised the phenomenon of chemical energy converting to electrical energy as a reaction between the two different metals of Galvani's instruments
a 3D region around a magnet where a magnetic force can be produced
constantly bombards Earth with high-energy charged particles
a mineral containing a lot of iron
used to reverse the flow of current so that the armature can continuously rotate
a device that converts stored chemical energy into electrical energy

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