Electricity Question Preview (ID: 42903)


Electricity Chapter Test Review. TEACHERS: click here for quick copy question ID numbers.

Electrons in conductors move about ______ freely than the electrons in insulators
a) more
b) less
c)
d)

The path of a current in a circuit is completed by
a) a transformer
b) an energy source
c) an electrical device
d) conduction wires

Batteries and power plants are examples of
a) energy sources
b) energy transformation
c) energy conduction
d) energy conservation

When more branches are added to a parallel circuit,
a) resistance increases
b) resistance decreases
c) the current has more paths to follow
d) the current has fewer paths to follow

Which of the following does not determine the resistance of a wire?
a) temperature
b) length
c) diameter
d) color

The unit of measure for voltage is
a) ampere
b) ohm
c) volt
d) joule

All electrical devices contain electric
a) acid
b) circuits
c) gears
d) motors

Charges can redistribute themselves by friction, conduction, polarization and
a) reduction
b) induction
c) production
d) superconduction

A region around a charged object where the object's electric force is exerted on another charged object is an electric ____.
a) field
b) socket
c) outlet
d) power plant

Atoms contain charged particles called
a) protons and electrons
b) protons and neutrons
c) electrons and neutrons
d) protons, neutrons, and electrons

The ampere is a unit of
a) magnetism
b) electric charge
c) temperature
d) electric current

An example of an insulator is
a) rubber
b) copper
c) silver
d) iron

Materials through which charge can flow easily are called
a) insulators
b) resistors
c) conductors
d) magnets

A complete, unbroken path through which electric charges can flow is a(n)
a) electric circuit
b) electrical resistance
c) magnetic field line
d) magnetic pole

According to Ohm's Law, resistance is equal to voltage divide by _____.
a) time
b) current
c) conduction
d) potential

The buildup of charges on an object is called
a) static discharge
b) static electricity
c) positive charge
d) negative charge

The strength of the electric field of a charged particle becomes greater as the distance from particle
a) increases
b) decreases
c)
d)

The law of ___________________ of charges states that charges are not created or destroyed
a) conduction
b) matter
c) conservation
d) induction

Most objects have ______ overall charge.
a) a lot
b) some
c) no
d)

___________ a switch breaks an electric device.
a) Opening
b) Closing
c) Doing nothing to
d)

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