Charge
Electric Circuits
Current and Voltage
Resistance and Ohms
Review
100
fundamental property of matter that can be overlooked
What is charge
100
science of electric current and charge, flow of electric current
What is Electricity
100
unit for electric current (I)
What is Amperes (A)
100
a measure of how strongly a wire or other objects resists current flow
What is resistance (R)
100
The higher the resistance the _______ current
What is less
200
unit of charge
What is coulomb
200
flow of electric charge or electrons
What is electric current
200
flows from positive to negative
What is Electric current
200
unit of measurement for resistance
What is Ohms
200
material with low resistance
What is conductor
300
has an equal amount of positive and negative charges, so its _________
What is electrically neutral
300
complete path through which an electric charge can flow
What is electric circuit
300
flows from negative to positive
What is electrons
300
I= V/R
What is Ohms Law
300
material with high resistance
What is insulator
400
tiny imbalance between positive and negative charges on an object
What is static electricity
400
component used to control current in circuits
What is resistor
400
measure of electric potential energy
What is voltage
400
A laptop computer runs on a 24 volt battery. If the resistance of a circuit inside is 16 ohms, how much current does it have?
What is 1.5 A
400
the resistance of materials ___________ as temperature increases
What is increases
500
created when negative charges in the cloud are attracted to the positively charged ground.
What is lightning
500
device for alternatively allowing or not allowing charge to flow in a circuit
What is switch
500
uses chemical energy to create voltage difference between its two terminal
What is battery
500
a motor in a toy car needs 2 amps of current to work properly. If the car runs on four 1.5 V batteries, what is the motor's resistance?
What is 3 ohms
500
what voltage produces a 6 A current in a circuit that has a total resistance of 3 Ohms
What is 18 V
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