Electric Current
Conductors and Insulators
Resistance
Voltage
Ohm's Law
100
The continuous flow of electric charge
What is electric current
100
The metal wire for example is a material through which charge can flow easily
What is electrical conductor
100
Is opposition to the flow of charges in a material
What is resistance
100
Is the difference in electrical potential energy between two places in an electric field.
What is potential difference
100
The unit of resistance name after Georg Ohm.
What is Ohm
200
An example is Electric current in your home and school. This flow regularly reverses its direction
What is alternating current (AC)
200
Rubber and plastic are electrical insulators
What materials through which charge cannot flow easily
200
A material that has almost zero resistance when it is cooled to low temperatures
What is superconductors
200
Potential difference is measured
What is joules per coulomb, or volts
200
A mathematical relationship between voltage, current, and resistance
What is Ohm's Law
300
ampere (A) or amp
What is the SI unit of electric current
300
Metals such as copper and silver are good
What are good electrical conductors
300
Greater in a longer wire because the charges travel farther
What is resistance
300
Is a device the converts chemical energy to electrical energy
What is battery
300
Increase the voltage affects
What is current which increases
400
In a flashlight, electrons flow within the battery based
What is terminal ( negative/positive)
400
Can conduct charge
What is free electron
400
The SI unit of a resistance
What is Ohm
400
Three common voltage sources
What is batteries, solar cells, and generators
400
Keeping the same voltage and increasing the resistance
What is decreases the current
500
Charge flow only in one direction
What is direct current
500
Made up of ions in a lattice
What is a metal
500
Collisions convert some kinetic energy into thermal energy
What is as electrons move through a conducting wire, they collide with electrons and ions.
500
The potential energy of a charge depends on
What is position in an electric field
500
V=I x R=3 amps x 3 ohms
What is 9 volts
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