6.21.F - Test: Module Six Flashcards
Electricity is a form of energy involving the flow of ____________.
neutrons
protons
quarks
electrons
electrons
Why doesn’t the wire get hot in a circuit going from a battery through a light bulb?
the amps are too low
the light bulb is not switched on
the light bulb reduces the current
there are not enough volts
the light bulb reduces the current
How much current is flowing through the typical flashlight?
1 amp
2 volts
5 amps
10 volts
1 amp
What is the relationship between current and voltage across a circuit?
inversely proportional
no relationship
joint variation
directly proportional
directly proportional
If a 9-volt battery produces a current of 25 amps, what is the resistance?
3.6 ohms
2.7 ohms
0.27 ohms
0.36 ohms
0.36 ohms
What voltage produces a current of 500 amps with a resistance of 60 ohms?
60,000 volts
6,000 volts
3,000 volts
30,000 volts
30,000 volts
If a 12-volt battery produces a current of 20 amps, what is the resistance?
6 ohms
1.67 ohms
.06 ohms
0.6 ohms
0.6 ohms
What is the current produced by a 9-volt battery through a circuit with a resistance of 100 ohms?
0.09 amps
0.009 amps
0.9 amps
9 amps
0.09 amps
In one to three sentences, explain the difference between static electricity and current electricity.
Your Answer:
Static electricity involves friction and is like rubbing a balloon on your hair. The charges are found on two surface areas, and current electricity consists of a battery or a generator, and the charges are found in the current of the conductor.
The symbol for current in Ohm’s Law is ________.
R
I
V
C
I
In a series circuit, when you add more resistance, what will happen to the amount of current?
increase
triple
decrease
double
decrease
Match the following statements based on the information about Christmas tree light circuits.
A string of older Christmas tree lights is an example of a _________ circuit because when one light goes out, they all do..
series
parallel
series
Match the following statements based on the information about Christmas tree light circuits.
A string of newer Christmas tree lights is an example of a _________ circuit because when one light goes out, it doesn’t affect them all.
series
parallel
parallel
What do we call this formula?
Volta’s Law
Ampere’s Law
Newton’s 2nd Law
Ohm’s Law
Ohm’s Law
What is a common example of charging by friction?
bringing a charged object in contact with an uncharged conductor
bringing an object close to a charged object
rubbing a balloon against your hair
rubbing a balloon against your hair
In static electricity, one object loses _________ and another gains them.
electrons
Which kind of natural disaster claims more lives in the United States on an average year?
forest fires
floods
lightning
mudslides
lightning
In which state do the most lightning strikes occur?
Virginia
Oklahoma
Kansas
Alabama
Alaska
Florida
Florida
___________ are the works of the Lord; they are
____________ by all who delight in them.”
Psalm 111:2
Great
Pondered
Both cotton and wool are good insulators, so transfers of electrons only happen where they _________ each other.
touch
double
consume
dissolves
touch
Maxwell gave Faraday’s theories a firm ____________ foundation leading to advances in electricity and magnetism.
Biblical
Scientific
Philosophical
Mathematical
Mathematical
_______ is the force that makes electricity flow in an electrical circuit, holds elections in an atom, and makes lightning.
Electron Force
Electromagnetic Force
Electrical Force
Friction Force
Electromagnetic Force
What do we call atoms when they become charged by gaining or losing electrons?
cations
ions
bonded
anions
ions
Who was the first to demonstrate that lightning is an electrical discharge?
Franklin
Volta
Newton
Faraday
Ampere
Franklin
