7.23.W - Lesson Review: Make a Compass / Faraday Cage / Faraday Cage Flashcards
What imaginary lines begin at the geographic north pole and end at the geographic south pole?
equator
latitude
International Date Lines
longitude
longitude
The north arrow of a compass needle always points to _______.
Earth’s geographic south Pole
Earth’s geographic north Pole
Earth’s magnetic north pole
Earth’s magnetic south pole
Earth’s magnetic north pole
What country is known to have used a ladle-and-basin, lodestone, south-pointing compass?
Japan
Italy
Korea
China
China
What group of people would need to keep track of where the magnetic north pole is currently?
hikers on the Appalachian Trail
people climbing Mount Everest
campers in Yosemite National Park
pilots
pilots
EMF or electromotive force is measured in ___________.
joules
volts
amps
watts
volts
Michael Faraday realized that there is a link between electricity, magnetism, and the force which can be harnessed to do _________.
Work
A galvanometer shows ____________.
a current passing through the circuit
the number of amps used
the emfs in the battery
how many coils are in the generator
a current passing through the circuit
The process of generating a current by moving an electrical conductor relative to a magnetic field is called ______________________.
electrostatic
electromagnetic induction
ohm
emf
electromagnetic induction
The process of connecting something to the earth using a conductor is called ____________.
grounding
What is the Faraday cage that your parents most likely own?
washer
clothes dryer
refrigerator
automobile
automobile
Under what conditions do Faraday cages work best?
when they are block stable or slowly varying magnetic fields
when they have very large holes
when they are grounded
when they are made of graphite
when they are grounded
The fact that there is no electric field inside a closed conductor, when it contains no charged bodies, was demonstrated by ___________________.
Isaac Newton
Hans Christian Oersted
Michael Faraday
Galileo Galilei
Michael Faraday
Describe the steps, in detail, of creating a water compass. Please remember to write in complete sentences.
Your Answer:
The first step in creating a water compass is to get a tin of water. The last step is to get a corkboard and put it in the tin of water so it can float; then, you may set the sewing needle (which had been magnetized) on top of the corkboard.
