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15 questions
The movement of electrons is know as ______________.
voltage
resistance
current
static electricity
What are the three methods of transfer of charge?
friction
convection
conduction
radiation
induction
Which of the following would make a good conductor?
copper
foam
a board
a plastic straw
What are the units of current?
ohms
amps
volts
electrons
Which subatomic particles create static charge?
electrons
neutrons
protons
quarks
What current will travel through a wire if it has a resistance of 10 ohms and a voltage of 15 volts?
150 amps
1.5 amps
150 I
1.5 I
Electrons flow from ___________ to _____________.
positive, negative
north, south
negative, positive
south, north
Which direction do field lines travel?
negative to positive
south to north
north to south
positive to negative
Where is the force applied by a magnetic field the strongest?
in the middle of a magnet
at the poles
far away from the magnet
none of the above
For a magnet to form all of the domain must be ___________.
unaligned
strengthened
aligned
disrupted
Lightning is an example of ___________________.
static discharge
electrons spinning
protons spinning
none of the above
The Earth is a big ____________.
electron
conductor
magnet
field
What must domains do to create a magnet?
they must be unaligned
they must go from negative to positive
they must be aligned
they must go from positive to negative
How many paths can current take in the picture?
1
4
3
2
What voltage is produced by a current of 5 amps and a resistance of 8 ohms?
1.6 volts
0.625 ohms
40 volts
0.625 volts
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