PHysics Electrostatic/Electric Current Flashcards
Conductor
A material through which a charge will move easily (Copper, gold, aluminum)
Electrostatic
The study of electric charges that can be collected and held in one place
Insulator
A material through which a charge will not move easily (Glass, diamond, plastic, wood)
What are the three parts of an electroscope
Knob, insulator, leaves
Three applications of Electric Forces
Laser printer, tiny point droplets, photocopy machines
DIfference between semiconductors and superconductors
A superconductor has zero resistance and a semiconductor can be both a conductor and an insulator
A conventional current is the flow of
Positive charge
A ___ is a material with zero resistance
superconductor
In a ___ there is only one path for the current to flow
Series connection
Who was the narrator of the Cosmos episode titled “Electric Boy”
Neil deGrasse Tyson
Who is the “Electric Boy”
Michael Faraday
Current is measured in unit called
amperes
Power is measured in
Watts
Parallel connection
more than one path for current to flow
Resistor
device designed to have a specific resistance
Ohm is the unit of
resistance
Joule is the unit of
energy
Name the five main energy sources for creating electricity
coal, petroleum, natural gas, nuclear power, hydropower
Name the four alternative energy sources for creating electricity
Geothermal power, solar power, wind power, biomass + agricultural waste
Static electricity
Formed by rubbing electrons off, or on, a surface
like charges
repel
ion
charged particles
attract
unlike charges
conductor
allows electric current to flow
farad
unit of capacitance
electroscope
device used for detecting electric charge
electric field
force surrounding a charged object
voltage
potential difference
capactior
device used to store electric charge
insulator
prevents flow of electrons
ohm
unit of electrical resistance
Ben Franklin
kite experiment
battery
chemical device to make electricity
electric current
flow of electrons
dielectric
insulator sheet in a capacitor
superconductor
has no internal resistance
joule
unit of energy
watt
unit of power
volta
invented the battery
What are the four things that can affect resistance
length conductor, temperature, conductor material, cross sectional area
compare flow of water to the flow of current
the flow of water is like the flow of electricity through a wire
a flow of electricity is like a flow of water with no leaks
what is an electroscope designed to remove
air currents
grounding
the process of removing access charge by connecting an object to Earth
