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Electricity Test

True/False
Indicate whether the sentence or statement is true or false.
 

 1. 

Static electricity and current electricity are the same thing.
 

 2. 

Current electricity is the continuous flow of electrons.
 

 3. 

Electrical charges that are different attract eachother.
 

 4. 

Conduction is the transfer of electrons from a charged object to another by rubbing.
 

 5. 

As temperature of most conductors increases, the resistance decreases.
 

 6. 

In a parallel circut, there is only one path for the electrons to take.
 

 7. 

A circut breaker must be replaced after too much current in it causes it to melt.
 

 8. 

Dry cell batteries can be found in every day items like a remote.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 9. 

As in the case of unlike magnetic poles, unlike electric charges
a.
attract each other.
b.
repel each other.
c.
exist in pairs.
d.
do not interact.
 

 10. 

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

 11. 

Clothes in a dryer acquire static cling by
a.
friction.
b.
conduction.
c.
induction.
d.
static discharge.
 

 12. 

The loss of static electricity as electric charges move off an object is called
a.
friction.
b.
conduction.
c.
induction.
d.
static discharge.
 

 13. 

Suppose you acquire a positive charge from walking across a carpet. You then touch a doorknob and receive a shock. This leaves you
a.
positively charged.
b.
negatively charged.
c.
uncharged.
d.
electrically neutral.
 

 14. 

The type of energy that depends on position is called
a.
potential energy.
b.
electrical energy.
c.
magnetic energy.
d.
solar energy.
 

 15. 

An electric current will always follow
a.
the path of least resistance.
b.
a path toward the north pole.
c.
a path toward the south pole.
d.
the path that leads through insulators.
 

 16. 

In a series circuit with three bulbs,
a.
there are many paths for the current to take.
b.
the remaining two bulbs are not affected if one bulb burns out.
c.
all of the bulbs become dimmer as more bulbs are added.
d.
a switch is never used.
 

 17. 

In a series circuit with three bulbs, adding another bulb will
a.
make the nearest bulb brighter.
b.
make some of the bulbs dimmer.
c.
make all the bulbs brighter.
d.
make all the bulbs dimmer.
 

 18. 

In a parallel circuit with three bulbs,
a.
the bulbs must all be located on the same branch.
b.
there is only one path for the current to take.
c.
current from each bulb has its own path.
d.
the overall resistance increases if a new branch is added.
 

 19. 

A device to measure electrical potential energy difference, or voltage, is called a(n)
a.
ammeter.
b.
voltmeter.
c.
series meter.
d.
Ohm meter.
 

 20. 

A connection that allows current to take the path of least resistance is called a
a.
short circuit.
b.
series circuit.
c.
parallel circuit.
d.
grounded circuit.
 

 21. 

What is a disadvantage of using fuses?
a.
When a fuse burns out, it cannot be used again.
b.
A fuse shuts off when the current gets too high.
c.
A fuse contains a thin strip of metal that can melt.
d.
A fuse prevents circuits from overheating.
 

 22. 

The charge on a proton is
a.
negative, and the charge on an electron is positive.
b.
positive, and the charge on an electron is negative.
c.
the same as the charge on an electron.
d.
can change according to the situation.
 

 23. 

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.
 

 24. 

Materials that allow the charges of an electric current to move freely through them are called
a.
insulators.
b.
conductors.
c.
resistors.
d.
magnets.
 

 25. 

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

 26. 

A device used to open and close an electric circuit is a(n)
a.
light bulb.
b.
energy source.
c.
switch.
d.
resistor.
 

 27. 

What parts of the cell are used to connect an electrochemical cell to a circuit?
a.
electrodes
b.
electrolytes
c.
wet cells
d.
terminals
 

 28. 

A device that transforms stored chemical energy into electrical energy is a(n)
a.
electrolyte.
b.
electrode.
c.
electrochemical cell.
d.
terminal.
 

 29. 

An electrochemical cell needs _____________ to work.
a.
an electrolyte
c.
terminals
b.
an electrode
d.
all of the above
 

 30. 

___________ is when charges move from one object to another without touching.
a.
conduction
c.
friction
b.
induction
d.
all of the above
 



 
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