Static Electricity & Charge
Opposite electric charges do this.
attract
The unit used to measure current.
amps
This type of circuit has only ONE path for current.
series
This is the force or push that causes electric charges to move.
voltage difference
This device opens and closes a circuit.
switch
This process charges an object WITHOUT touching it.
induction
A 12 V battery pushes current through a 4 Ω resistor. Find the current.
3 amps
Homes are typically wired using this type of circuit.
parallel
Electric charges flow from this type of area to this type of area.
negative to positive
This device measures voltage in a circuit.
voltmeter
The Law of Conservation of Charge says charge cannot be created or destroyed, only ________.
transferred
A circuit has a resistance of 20 Ω and a current of 5 A. Find the voltage.
100 volts
In this type of circuit, one burned-out bulb causes ALL bulbs to go out.
series
This term describes the transfer of electrons through direct contact.
conduction
This safety device melts if too much current flows.
fuse
A device used to detect electric charge on an object.
electroscope
A hair dryer uses 120 V and draws 8 A of current. Find the resistance.
15 ohms
A student wants each bulb to work independently. Which type of circuit should they build?
parallel
This term describes the transfer of electrons through electric fields acting at a distance.
This device measures current and is connected in series.
ammeter
An object has gained extra electrons. Its charge is now this.
negative
A heater has a resistance of 1.5 Ω and draws 80 A. Find the voltage.
120 volts
A circuit contains two branches. One branch has Bulbs A and B in parallel. Another branch has Bulbs C and D in series. This type of circuit is called this.
combination circuit
A student wants to increase the current in a circuit. Describe TWO changes they could make.
Increase Voltage
Decrease Resistance
A student places a voltmeter in series with a bulb. Explain why this is incorrect.
must be connected in parallel