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Definitions
Concepts 1
Concepts 2
Math!
More
Math!
Ran-Dumb!
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Metal that bends when its
hot
Answer: Circuit Breaker
Metal that melts if it gets too hot
Answer: fuse
Pathway for electricity
to flow
Answer: Circuit
Does not allow electrons
to move through it easily
Answer: insulator
Electrons move easily
through this
Answer: conductor
These circuits have the
same current throughout
Answer: series
These circuits have different
current in each branch
Answer: parallel
A diagram of circuit
made of symbols
Answer: a schematic
Charges always flow
from _____ to ______
electrical potential
Answer: high to low
Units for Current
Answer: Amps or
Amperes
The current in your
home is AC or DC
Answer: AC
Law that describes
relationship between V I
and R
Answer: Ohm’s
What cannot be measured
directly by a multimeter?
Answer: Power
How should you connect
an Ammeter in a circuit to
determine the current in a
resistor?
Answer: in series with
the resistor
What does it mean if a battery is labelled 6 V?
Answer: There are 6v of
Potential difference
across the terminals
What is total resistance of 4, 6
and 12 ohm resistor in series
Answer:22 ohms
200 mA
What is the average current if a
1200 mAh battery discharges in 6
hours?
Light bulb draws 3 A in a
120 V circuit, what is it’s
resistance?
Answer: 40 Ohms
What is the resistance of a 6, 12 and 24 ohm resistor wired
in parallel?
Answer: 3.4 Ohm
What is the total current flowing through a
5 and 6 ohm resistor wired in parallel to a
12 v battery?
Answer: 4.4A
A 18 ohm lamp is connected
to a 120 V circuit. What is its
power?
Answer: 180 W
What is the current in a series
circuit with a 25 V battery and
6 and 12 ohm resistors.
Answer: 1.4 A
Two 9 V batteries are
wired in series. What is
the Vt?
Answer: 18 V
Four 16 ohm resistors are
wired in parallel what is the
total resistance?
Answer: 4 Ohms
What would a voltmeter read
across a 12 ohm resistor
wired in series wit a 10 ohm
resistor to a 6 V battery?
Answer: 3.3 V
What did the grape say when
the elephant stepped on it?
Answer: Nothing it just
let out a little wine.
Why did the fish have a bad
report card?
Answer: All of his grades
were underseas.
What’s the best side of the
house to put the porch on?
Answer: the outside
What did Mr. and Mrs.
Hamburger name their
daughter?
Answer: patty
What do you call the last bit
of snow to hit the ground?
Answer: a slow flake
What is a musician’s
favorite food?
Answer: drumsticks
Why doesn’t the sun shine on
castles?
Answer: they’re full of
knights.