NEW
Font size
WorksheetsElectricity end of unit review
Total questions: 26
Worksheet time: 9mins
Materials which can conduct electricity better than an insulator but not as well as conductors. This is the definition of
conductor
superconductor
semiconductor
insulator
An electrical insulator is a material in which charges (electrons) _____ flow freely
can
cannot
A superconductor is a
material that conducts electricity more easily than others
material that does not conduct electricity at all
material that conducts electricity more difficultly than others
what are the proper units for an amount of charge?
volts
amps
ohms
coulombs
What are the proper units for an amount of current?
volts
amps
ohms
coulombs
what are the proper units for a potential difference and voltage?
volts
amps
ohms
watts
what are the proper units for electrical resistance?
volts
amps
ohms
watts
what are the proper units for electrical power?
volts
amps
joules
watts
what are the proper units of electrical energy?
volts
amps
joules
watts
An electron is near two oppositely charged sheets of metal. The electron is ____ the positive sheet and ____ the negative sheet.
attracted to/ repelled by
repelled by/ repelled by
repelled by/ attracted to
attracted to/ attracted to
if a negatively charged rod touches a conductor, the conductor will be charged by what method?
friction
conduction
convection
induction
two storm clouds rub against each other giving one cloud a positive charge and one a negative charge. This is an example of charging by
conduction
friction
induction
convection
when is the electrostatic force between two charges the strongest?
when charges are very close to each other
when the electrical field is constant
when charges are very far apart from each other
A charged balloon is brought near an electroscope but DOES NOT touch the electroscope. This is an example of charging by
conduction
convection
induction
friction
The current has only one loop to flow through in this circuit
Series
parallel
open
Define electric current
amount of charge present in a circuit
potential energy per charge
rate at which charge moves through a cross-sectional area of wire
speed at which charge moves from one location to another location
the opposition posed by a material material to the flow of current is called
breaker
current
resistance
friction
Electrons flow from the ______ end of a battery to the _____ end of the battery
positive, negative
negative, postive
Conventional current flows from
negative to positive
positive to positive
negative to negative
positive to negative
conventional current is the movement of a ____ charge
positive
negative
Electrical potential is the ability to move an electric charge from one point to another. Charges naturally want to move FROM areas of ______ electric potential TO areas of ____ electric potential
high, low
low, high
Which device is the best example of something with direct current?
dishwasher
stove
battery
microwave
which best describes a parallel circuit?
electricity flows along one pathway
electricity flows along more than one pathway
the flow electricity comes from one source
the flow of electricity comes from more than one source
what is one problem with using a series circuit?
it has a lot of series
it does not work properly
if one goes down, they all go down!
there are no problems
Is this circuit open or closed?
open
closed
This circuit is a ______ and the ______
series circuit - bulbs are lit
parallel circuit - bulbs are lit
series circuit - bulbs are off
parallel circuit - bulbs are off
