Transcript Electricity Jeopardy

Ohmrrival
MoAMPna
Doctor
Volt
Q $100
Q $100
Q $100
Q $100
Q $100
Q $200
Q $200
Q $200
Q $200
Q $200
Q $300
Q $300
Q $300
Q $300
Q $300
Q $400
Q $400
Q $400
Q $400
Q $400
Q $500
Q $500
Q $500
Q $500
Q $500
Wattsaw
Ridge
Electric Beasts
And Where to
Find Them
Final Jeopardy
$100 Question from MoAMPna
A ____________ is a charge that is not
moving
Main
Board
Answer
$100 Answer from MoAMPna
Static
Main
Board
$200 Question from MoAMPna
What unit is used to measure current
(Shortened and Long Version)?
Main
Board
Answer
$200 Answer from MoAMPna
Amps or Amperes
Main
Board
$300 Question from MoAMPna
When Current ____, Voltage ___
When Voltage ___ ,
Main
Board
Current ___
Answer
$300 Answer from MoAMPna
When Current ▲, Voltage ▲
When Voltage ▼ ,
Main
Board
Current ▼
$400 Question from MoAMPna
When current can pass through both a thin
wire and a thicker wire, which would have
less resistance? Why?
Main
Board
Answer
$400 Answer from MoAMPna
Big wire, means the larger space, the more current
we can have
Main
Board
$500 Question from MoAMPna
Fill in the Blanks:
When Amperage ___ then Resistance _____
PROVE IT MATHEMATICALLY
Main
Board
Answer
$500 Answer from MoAMPna
When Amperage increases then Resistance
decreases
and Vice Versa
Main
Board
$100 Question from Doctor Volt
The unit of measure for Voltage is
_____________
Main
Board
Answer
$100 Answer from Doctor Volt
Volts
Main
Board
$200 Question from Doctor Volt
An Electric Circuit must be __________ to
work.
Main
Board
Answer
$200 Answer from Doctor Volt
Complete
Main
Board
$300 Question from Doctor Volt
A ______________ is required for Voltage to
carry a current in a circuit.
Main
Board
Answer
$300 Answer from Doctor Volt
Voltage Source
Main
Board
$400 Question from Doctor Volt
How is Voltage SIMILAR to a rollercoaster?
Main
Board
Answer
$400 Answer from Doctor Volt
High potential energy from the top, lower as it
goes down - Electricity has high potential at
the Power Plant, moves away from high
concentration
Main
Board
$500 Question from Doctor Volt
Main
Board
Answer
$500 Answer from Doctor Volt
A. 12 Volts for both
B. 4 Ohms and 1 Ohm
C. 3 amps and 6 amps on each branch (or 12)
Main
Board
$100 Question fromOhmrrival
This is the unit of measure for Resistance, and
it's Symbol.
Main
Board
Answer
$100 Answer fromOhmrrival
Ohm’s and Ω
Main
Board
$200 Question fromOhmrrival
Something with a ___________ resistance
will not allow charges to flow easily.
Main
Board
Answer
$200 Answer fromOhmrrival
High
Main
Board
$300 Question fromOhmrrival
A lemon with zinc and iron sticking out of it
is a _______________.
Identify the Electrodes and the Electrolyte.
Main
Board
Answer
$300 Answer fromOhmrrival
Battery
Electrode –Zinc and Iron
Electrolyte – Lemon Juice
Main
Board
$400 Question fromOhmrrival
After a long day at school, you finally get to sit home
and relax. You turn on your 120 Volt Nintendo that
uses a current of 10 amps and your television that has
a potential difference of 42, with 0.5 amps. Suddenly,
you realize your living room circuit breaker will
power off if you have more than 95 Ohms of
resistance.
Will your Circuit breaker power off? Why or why
not?
Main
Board
Answer
$400 Answer fromOhmrrival
120 V/10 A = 12 Ω Nintendo
42 V/0.5 A = 84Ω TV
96 Ω Total.
Yes it will turn off, too much resistance!
Main
Board
$500 Question fromOhmrrival
Give all 4 factors that affect resistance and
explain how.
Main
Board
Answer
$500 Answer fromOhmrrival
Length – Longer more Ω, shorter less
Diameter – Thinner more Ω, Thicker less
Material it is made from – Insulator vs
Conductor
Temperature – Heat means Ω, Cool is better
Main
Board
$100 Question from Wattsaw Ridge
This is the formula to determine power
Main
Board
Answer
$100 Answer from Wattsaw Ridge
Power = Volts x Amps
Main
Board
$200 Question from Wattsaw Ridge
Draw the circle that will help Solve for power,
and the three formulas associated with it
Main
Board
Answer
$200 Answer from Wattsaw Ridge
Power= Volts X Amps
Amps = Power/ Volts
Volts = Power/Amps
Main
Board
$300 Question from Wattsaw Ridge
The difference between
a wet cell and a dry cell
Main
Board
Answer
$300 Answer from Wattsaw Ridge
Wet cell electrolyte is a liquid
Dry cell electrolyte is a paste
Main
Board
$400 Question from Wattsaw Ridge
Lemon juice is an example of a(n) ________
Main
Board
Answer
$400 Answer from Wattsaw Ridge
Electrolyte
Main
Board
$500 Question from Wattsaw Ridge
What is the total resistance of the circuit?
Main
Board
Answer
$500 Answer from Wattsaw Ridge
26W/10V = 2.6A
14W/10V=1.4A
94W/10V=9.4A
10V/2.6A=3.85Ω
10V/1.4A=7.14 Ω
10V/9.4A=1.06Ω
HOWEVER TOTAL Ω = TOTAL V / TOTAL A
10V/13.4A = .75 Ω
Main
Board
$100 Question from Electric Beasts
and Where to Find Them
Lightning is an example of this
Main
Board
Answer
$100 Answer from Electric Beasts
and Where to Find Them
Induction
Main
Board
$200 Question from Electric Beasts
and Where to Find Them
What is significant about Edison and Tesla’s
rivalry?
What are they known for today? (In
relation to each other)
Main
Board
Answer
$200 Answer from Electric Beasts
and Where to Find Them
Tesla worked for Edison, invented a better
product but his name was slandered so he
isn’t as famous as he probably should be.
Edison – Direct Current
Tesla – Alternating Current
Main
Board
$300 Question from Electric Beasts
and Where to Find Them
How do direct and alternating current differ?
Main
Board
Answer
$300 Answer from Electric Beasts
and Where to Find Them
Direct travels in one direction continuously,
cant travel very far, mostly used for
batteries now
Alternating current travels back and forth
repeatedly, can be used over long distances,
almost all electric now.
Main
Board
$400 Question from Electric Beasts
and Where to Find Them
A 490 Watt Microwave uses 7.0 Amps of
power from a wall socket. How much
Resistance does the microwave have?
Main
Board
Answer
$400 Answer from Electric Beasts
and Where to Find Them
10 Ohms
Main
Board
$500 Question from Electric Beasts
and Where to Find Them
A circuit contains a 12-volt battery and two 3ohm bulbs in series.
A. Calculate the total resistance of the circuit.
B. Calculate the current in the circuit.
C. Calculate the power of each bulb.
D. Calculate the power supplied by the battery
Main
Board
Answer
$500 Answer from Electric Beasts
and Where to Find Them
a. 6 ohms
b. 2 amps
c. 12 Watts
d. 24 Watts
Main
Board
Final Jeopardy
A clothes dryer in a home has a power of 4,500 watts
and runs on a special 220-volt household circuit
– What is the current through the dryer?
– What is the resistance of the dryer?
– How many kilowatts are used by the dryer?
– How many kilowatt hours of electricity are used by the
dryer if it used for 4 hours in one week?
– If your town charges $0.15/kWh, what is the cost to use the
clothes dryer for a month? (If there are four weeks in a
month)
Main
Board
Answer
Final Jeopardy Answer
A=4500W/220V = 20.45A
Ω = 220V/20.45A = 10.76 Ω
4500W = 4.5kW
4.5kW x 4 hours = 18 kWh
4 x18 kWh x $0.15 = 10.80
Main
Board