Name:______________________
Period:___
Electric Circuits Quiz
Vocabulary Matching
___ 1) Open Circuit
___ 2) Closed Circuit
___ 3) Battery
___ 4) Resistance
___ 5) Resistor
___ 6) Ohm’s Law
___ 7) Conductor
___ 8) Insulator
a. A device using chemical
energy to push current in a
circuit.
b. An object that conducts
electricity poorly
c. The mathematical
relationship between current,
voltage and resistance.
d. A circuit with the switch
turned to off or a circuit with
any break
e. The ability to resist current
flow.
f. A circuit with the switched
turned on, or a completed
circuit.
g. An object through which
electricity passes easily
h. In a circuit diagram, an object
that uses electrical energy is
usually represented by one of
these.
9) A microwave uses a current of 4 amps to heat Mr. Franz’s coffee, The
voltage in the wall outlet is 120 volts. Calculate the resistance of the
microwave.
Electric Circuits Quiz
10) A light bulb needs 2 amps to produce light. If the resistance of the bulb is
3 ohms, how many 1.5 volt batteries do you need to make it light?
11) The diagram below pictures three identical light bulbs, each with a
resistance of 1 ohm, which are connected by resistance-free wires. A 9-volt
battery supplies energy to the circuit.
12) The total resistance for the circuit shown in the
figure is:
13) The current for the circuit shown is:
14) The voltage drop across each light bulb above is ____ volt(s).
15) Suppose you connect more and more light bulbs in series to a battery.
What happens to the brightness of each bulb as you add more bulbs?
a.
b.
c.
d.
The bulbs grow brighter with each new bulb added.
The bulbs grow dimmer with each new bulb added.
There is no change in brightness.
The brightness may increase or decrease depending on the type of
light bulb.
16) The current in a series circuit:
a.
decreases to zero as it travels through the circuit.
b. is the same at all points in a circuit.
c.
is greatest in the resistor with the highest resistance.
d. is greatest in the resistor with the lowest resistance.
17) The current in a series circuit ( is always the same / may be
different ) in different parts of the circuit.
18) The voltage in a series circuit ( is always the same / may be
different ) in different parts of the circuit.
19) The current in a parallel circuit ( is always the same / may be
different ) in different branches of the circuit.
20) The voltage in a parallel circuit ( is always the same / may be
different ) in different branches of the circuit.
21) If each resistor is 2-ohms, what is the
voltage drop across each resistor in the
diagram at right: _________
22) The voltage drop across each resistor in the circuit below is ____
volt(s).
23) The current in each resistor in the circuit is ____ ampere(s). The
total current is ____ amps.
24) What is the voltage
Drop across each resistor?
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