Exploration 1
What are charges measured in?
What is coulombs (C), or more often millicoulombs (mC) or microcoulombs (μC)?
What demension do magnetic feild occur in?
What is the third demension?
Are attactive forces modeled with a positive or negative number?
What is negative (think gravity)?
What is Coulomb's law?
What is F=k(q1*q2/r^2)?
10 cm = __ m
What is 0.1?
What is a special case of electric phenomena where electric charges or fields are at rest?
What is an electrostatic phenomena?
Where is the magnetic feild the strongest?
Where is at the two poles of the magnet?
What is distance?
Pushing the north poles of two magnets together is most similar to making a book move _____ the gravitational field near Earth's surface.
What is lifting it?
What is 6.673*10^-11?
What are ferrofluids?
Unlike electric feilds, gravitational field only deal with ___ forces?
What are attractive forces?
What happens to the surface area of the magnetic feild, as the distance increases?
Electric force between two objects depends on the charges of the objects and the distance between them, but not what?
What is mass?
What must be done to the distance in Coulomb's law?
What is it must be squared?
What must magnets overcome in order to move, either together or apart?
What is static friction?
When modeling an electric field, the ____ the lines are the stronger the feild?
What is closer together?
The inverse squares law applies to both electic feilds and ___?
What are gravitational feilds?
When comparing the force of gravity and the force of electricity, what ends up canceling out?
What is distance (r^2)?
10^6/10^2 = ___ ?
What is 10^4?
If you reach for a doorknob and a spark appears, what charged particles move in the spark between your finger and the doorknob?
What are electrons?
What imagenary lines can be used to model the strength and direction of a field in space?
What are feild lines?
On a dry day, two people each comb their furry pets with plastic combs. Laura's comb acquires −6.20 microcoulombs (μC) of charge. Jorge's comb acquires −4.30 μC of charge. What is the force on Laura's comb if Jorge's comb is placed 33.5 cm away?
What is 2.14 Newtons?
If the fields of two magnets cause them to snap together, the potential energy in the field between them (increases or decreases)?
What is decreases?
Two charges are separated by a distance of 1.20 m. The magnitude of q1 is 4.00 μC, and the attractive force on each charge is 0.500 N. What is the magnitude of q2?
What is 20.0?