Electricity And Magnetism Question Preview (ID: 34087)
Review For Unit 4.
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In a series circuit that has multiple bulbs, and I remove 1 bulb, what will happen the remain bulbs?
a) They will stay on
b) They will dim
c) They will go out.
d)
In a parallel circuit with multiple bulbs, and I remove 1, what will happen to the rest?
a) They will stay on.
b) They will dim.
c) They will go out.
d)
What type of circuit is most commonly used in our homes?
a) Series
b) Parallel
c) Open switch
d) Closed Switch
When we rub a balloon on our head and it sticks to a wall because it has become charged, this is call _______ ____ ______.
a) Charging by induction
b) Charging by contact
c)
d)
__________ ___ _________ rearrangement of electrons on a neutral object caused by nearby charged objects.
a) Charging by induction
b) Charging by contact
c)
d)
A conductor
a) stops the follow of electrons in a circut
b) easily moves the electrons through a circuit
c)
d)
Static electricity - accumulation of excess ______________________ charges on an object.
a) static
b) magnetic
c) electrical
d)
Both electricity and magnetism involve the movement of ___________________ and therefore one can generate the other as seen in an electromagnet.
a) Protons
b) Neutrons
c) Electrons
d)
Electric currents can produce a __________________ ______________.
a) Magnetic field.
b) Magnetic pole.
c) positive charge.
d)
Magnets can induce a _____________________________ current.
a) Magnetic
b) Electric
c) Nuclear
d)
Electricity and magnetism are both part of a single __________________________.
a) Magnetic Pole
b) Magnetic Field
c) Electromagnetic Force
d)
The region around a magnet in which forces can act is a(n) ______________________________.
a) Magnetic Field
b) Ozone
c) Magnetic Pole
d)
When you design a series circuit it will contain ____________.
a) multiple loops with parallel lights
b) only 1 loop
c)
d)
To make a stronger electromagnet you would ________________________
a) Add more coils to the iron core
b) Remove coils from the iron core
c)
d)
Which of the following statements about magnets and electricity is true?
a) An electric current is needed to make magnets.
b) Electricity requires a magnet to make current.
c) Magnets and electricity both require friction to do work.
d) Magnets can induce electricity.
Magnets with the same poles moving towards each other, for example south to south, or north to north, will _________________-
a) attract each other
b) repel each other
c)
d)
What is a circuit?
a) A closed path that electric current flows
b) An open path that electric current flows
c)
d)
When we turn off a light in a room, are we opening or closing the switch in the circuit?
a) Closing
b) Opening
c)
d)
A complex circuit is _________________________.
a) Multiple parallel circuits wired together.
b) Multiple series circuits wired together.
c) Includes both series and parallel circuits.
d)
Why are circuit breakers important to our homes and businesses?
a) How we get power
b) They can prevent circuit overload in certain areas of the home or office and prevent fire.
c) They are how we turn lights on and off in our homes and office.
d)
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