MO VALLEY TEST 1-5 QUESTIONS AND ANSWERS
The least common multiple of a set of denominators is called the ? . - Answers -least
common denominator
The rule for adding fractions with the same denominator is to add the numerators and
place the sum over the same denominator.
T/F - Answers -True
The total resistance of a parallel circuit is always less than the resistance of the smallest
resistor in the circuit.
T/F - Answers -True
When all resistors are of equal value in a parallel circuit, the total resistance is equal to
the value of one of the individual resistors or branches, divided by the number (N) of
resistors or branches.
T/F - Answers -True
In a parallel circuit, to calculate current you ?. - Answers -add
In a series circuit, the current ?. - Answers -stays the same
a ratio is a comparison of two quantities by ?. - Answers -dividing
The ? method is used to determine total power in a parallel circuit when that power is
determined from the total current, total resistance, and total voltage of the circuit.
a.direct
b.equivalent
c.indirect
d.Law of Proportionality - Answers -a.direct
The ? method is used to determine total power in a parallel circuit from the sum of the
individual power consumption of the loads in the circuit.
a.direct
b.equivalent
c.indirect
d.Law of Proportionality - Answers -c.indirect
The lines of force of a proton flow ? .
a.inward, in all directions
b.inward, in one direction
c.outward, in all directions
, d.outward, in one direction - Answers -c.outward, in all directions
A material that retains its magnetic properties is called a permanent magnet, and one
that loses this characteristic easily is called a ? magnet.
a.natural
b.saturated
c.temporary
d.weak - Answers -c.temporary
In magnetic materials, most or all of the magnetic domains are aligned.
T/F - Answers -True
The theory of magnetism states that each magnetic ? acts like a small permanent
magnet.
a.atom
b.core
c.domain
d.field - Answers -c.domain
The three basic classifications of magnetic materials are ferromagnetic, paramagnetic,
and diamagnetic.
T/F - Answers -True
Magnetic lines of force are called lines of ? .
a.attraction
b.flux
c.polarity
d.strength - Answers -b.flux
*Whenever an electric current flows through a conductor, a magnetic ? is formed around
the conductor. - Answers -Field
The direction of current flow through the wire determines the ? of the magnetic field. -
Answers -Direction
The strength of an electromagnet is directly proportional to its ampere-turns.
T/F - Answers -True
The degree to which a material is able to focus lines of magnetic flux is called ? .
The least common multiple of a set of denominators is called the ? . - Answers -least
common denominator
The rule for adding fractions with the same denominator is to add the numerators and
place the sum over the same denominator.
T/F - Answers -True
The total resistance of a parallel circuit is always less than the resistance of the smallest
resistor in the circuit.
T/F - Answers -True
When all resistors are of equal value in a parallel circuit, the total resistance is equal to
the value of one of the individual resistors or branches, divided by the number (N) of
resistors or branches.
T/F - Answers -True
In a parallel circuit, to calculate current you ?. - Answers -add
In a series circuit, the current ?. - Answers -stays the same
a ratio is a comparison of two quantities by ?. - Answers -dividing
The ? method is used to determine total power in a parallel circuit when that power is
determined from the total current, total resistance, and total voltage of the circuit.
a.direct
b.equivalent
c.indirect
d.Law of Proportionality - Answers -a.direct
The ? method is used to determine total power in a parallel circuit from the sum of the
individual power consumption of the loads in the circuit.
a.direct
b.equivalent
c.indirect
d.Law of Proportionality - Answers -c.indirect
The lines of force of a proton flow ? .
a.inward, in all directions
b.inward, in one direction
c.outward, in all directions
, d.outward, in one direction - Answers -c.outward, in all directions
A material that retains its magnetic properties is called a permanent magnet, and one
that loses this characteristic easily is called a ? magnet.
a.natural
b.saturated
c.temporary
d.weak - Answers -c.temporary
In magnetic materials, most or all of the magnetic domains are aligned.
T/F - Answers -True
The theory of magnetism states that each magnetic ? acts like a small permanent
magnet.
a.atom
b.core
c.domain
d.field - Answers -c.domain
The three basic classifications of magnetic materials are ferromagnetic, paramagnetic,
and diamagnetic.
T/F - Answers -True
Magnetic lines of force are called lines of ? .
a.attraction
b.flux
c.polarity
d.strength - Answers -b.flux
*Whenever an electric current flows through a conductor, a magnetic ? is formed around
the conductor. - Answers -Field
The direction of current flow through the wire determines the ? of the magnetic field. -
Answers -Direction
The strength of an electromagnet is directly proportional to its ampere-turns.
T/F - Answers -True
The degree to which a material is able to focus lines of magnetic flux is called ? .
