- What holds atoms together to form molecules?
Your answer:
oxygen
electricity
circuits
superglue
- What do the terms positive and negative refer to in science?
Your answer:
voltage
electric current
electric charge
direct current
- What kind of electric charges repel?
Your answer:
gravitational
like
unlike
static
- What kind of electric charges attract?
Your answer:
static
like
unlike
gravitational
- What kind of electric charge does an atom have when it loses one or more electrons?
Your answer:
static
positive
negative
neutral
- What kind of electric charge does an atom have when it gains one or more electrons?
Your answer:
static
gravitational
negative
positive
- Whose law of gravitation for masses is similar to Coulomb's Law for electrically charged bodies?
Your answer:
Ohm's
Newton's
Ampere's
Aristotle's
- What kind of force holds a satellite in orbit around a planet?
Your answer:
gravitational
electric
positive
negative
- What kind of force holds the electron in orbit around the proton?
Your answer:
negative
positive
electric
gravitational
- What is the unit of measurement for electrical potential?
Your answer:
the battery
the charge
the amp
the volt
- What is electrical potential often called?
Your answer:
ohm's
voltage
ampere
possibility
- What is the flow of charged particles called?
Your answer:
electric current
electric flow
electric charge
electric circuit
- What are the flowing charged particles in the circuits of metal wires?
Your answer:
protons
electrons
neutrons
quarks
- What is the rate of electrical flow measured in?
Your answer:
volts
coulombs
ohms
amperes
- What is the standard unit of charge?
Your answer:
1 ohm
1 coulomb
1 volt
1 amp
- What has the electric charge of 6.25 billion billion electrons?
Your answer:
1 coulomb
1 volt
1 amp
1 ohm
- What is the rate of flow of 1 coloumb of charge per second called?
Your answer:
an ampere
a coulomb
a volt
an ohm
- What does voltage produce if there is a complete circuit?
Your answer:
current
sparks
a fire
resistor
- What is the flowing of charge in one direction?
Your answer:
solid current
static current
direct current
alternating current
- What produces direct current in a circuit because its terminals always have the opposite signs?
Your answer:
a battery
an insulator
wood
a wire
- What kind of current can be stepped up to high voltage to be transmitted great distances with small heat losses?
Your answer:
static current
alternating current
direct current
solid current
- What is electrical resistance measured in?
Your answer:
ohms
coulombs
volts
amps
- What are materials called, that have zero resistance to the flow of charge?
Your answer:
insulators
resistors
alternators
superconductors
- How long will charges flow once electric current is established in a superconductor?
Your answer:
2 months
2 years
indefinitely
2 hours
- Who discovered that the amount of current in a circuit is directly proportional to the voltage established across the circuit and inversely proportional to the resistance of the circuit?
Your answer:
Ampere
Coulomb
Newton
Ohm
- What is the formula for figuring current?
Your answer:
voltage over resistance
voltage times resistance
volts over ohms
volts times ohms
- What is the formula for figuring amperes?
Your answer:
volts over ohms
volts times ohms
voltage over resistance
voltage times resistance
- What happens with the current as the voltage increases?
Your answer:
it is broken
it stays the same
it increases
it decreases
- What happens to the current if the resistance is doubled for the circuit?
Your answer:
it triples
the current stops
it shorts out
it is cut in half
- What are the circuit elements called that regulate the currents inside of all electrical devises?
Your answer:
insulators
resistors
superconductors
conductors
- What does the difference in potential of 1 volt established across a circuit that has a resistance of 1 ohm produce a current of?
Your answer:
2 volts
1 coulomb
2 ohms
1 ampere
- How much current flows through a lamp that has a resistance of 60 ohms when 12 V is impressed across it?
Your answer:
20 A
2 A
200 A
.2 A
- What is the resistance of an electrical frying pan that draws a current of 12A when connected to a 120 V circuit?
Your answer:
15 ohms
20 ohms
10 ohms
5ohms
- How much current flows through your body if your resistance is 100,000 Ohms and you touch the terminals of a 12 V battery?
Your answer:
.012 A
1.2 A
.12 A
.00012 A
- How much current will you receive if your skin is very moist, giving you a resistance of only 1000 ohms and you touch a 12V battery?
Your answer:
.012 A
.12 A
1.2 A
.00012 A
- How many connections are most electric plugs and sockets wired with today?
Your answer:
4
1
2
3
- What does the round prong of a plug connect the body of an appliance directly to, that prevents accidental shock?
Your answer:
the ground
a house
a tree
a flag pole
- What occurs when a current, caused by an impressed voltage is produced in the body?
Your answer:
seizures
headaches
electric shock
death
- What is any path which electrons can flow called?
Your answer:
a current
a line
a circuit
a flood
- How many pathways does an electric current have in a series circuit?
Your answer:
3
1
2
4
- What happens to current in other lamps if one lamp in a series circuit burns out?
Your answer:
they grow dimmer
they shine brighter
nothing
all lamps go out
- Which type of circuit allows devices to operate independently of the othr devises?
Your answer:
horizontal
parallel
direct
alternating
- What happens to current in other lamps if one lamp in a parallel circuit burns out?
Your answer:
nothing
they grow dimmer
they grow brighter
all lamps go out
- What are the two wires called that usually feed electricity into a home?
Your answer:
lines
fuses
cords
channels
- What happens to circuits that carry more than a safe amount of current?
Your answer:
they explode
they become overloaded
they lose their charge
they die
- What are connected in series along a supply line to prevent overloading of circuits?
Your answer:
cords
lines
channels
fuses
- What is the formula for power?
Your answer:
current / voltage
amperes X volts
current X voltage
amperes / volts
- What is the formula to calculate watts?
Your answer:
amperes / volts
current X voltage
current / voltage
amperes X volts
- How many amperes would be required t operate a 1200W hair dryer on a 120V line?
Your answer:
5 A
10 A
15 A
20A
- What does it cost to operate a 900W hair dryer for 1 hour, at 30 cents per kilowatt hour?
Your answer:
36 cents
10 cents
16 cents
27 cents