Its Magnetic
Charge it Up
Electric Field
Vocabulary
Mixed Bag
100
The area where the magnetic field is strongest.
What are the magnetic poles? (Recall that in an illustration of the magnetic field the density of the field lines will indicate the strength of the field. The lines will be closest together at the poles the (north and south "ends" of the magnet) Recall also that we can create a magnet with poles on any side we choose so the poles may not be at a physical "end" of a magnet.)
100
This subatomic particle can be transferred between objects to create a charge imbalance.
What is an electron?
100
This convention is used to determine the direction of the electric field.
What is a positive test charge? When we illustrate an electric field using arrows. The arrows will point in the direction that a positive test charge will accelerate when it is placed in that region of the field.
100
Small areas of magnetism which can be aligned to create a net magnetic field in an object.
What are domains or magnetic domains?
100
When illustrating magnetic or electric field lines. The lines of "force" never cross. This explains why.
What is the field is defined by a physical response (the direction of force) that the field exerts on a test object in the field. If the field lines crossed then the force applied to the test object would act in multiple directions at the same time. Recall for a magnetic field the direction is the direction that the north end of the compass points. So you can say that it is the attractive force exerted on the north end of the compass needle. For an electric field it is the direction that a positive test charge would accelerate at that point. Or we could say that it is the direction of the force on a positive test charge. (recall that the object will accelerate in the direction of the net force acting on the object)
200
This happens when you cut a magnet in half.
What is you have two smaller magnets? 
Recall that this will happen all the way down to an atomic level.
Recall that this will happen all the way down to an atomic level.200
This process of charging involves direct contact between two objects and is most effective with conductors.
What is conduction?
200
Diagram or describe the field around a negative point charge.
What is the field will point radially inward? or 
200
The angle that a magnetic needle makes with the horizontal plane at any specific location. (don't forget to give the specific angle at the equator and at the poles)
What is magnetic dip? At the equator it is about zero and at the poles it is 90 degrees.
200
Indicates the direction of the net force on the 3 nanocoulomb charge.
What is to the right? You can calculate the net force. However, from coulomb's law we know that the force drops off exponentially with distance so while the 4 nanocoulomb charge will have an attractive force it is much farther away so this force will be weaker than the repulsive force from the center charge.
300
When illustrating a magnetic field, this will determine the direction the field points (i.e. the direction of the field lines).
What is the north end of the compass needle?
Recall that a compass is just a small magnet and that its north end will be attracted to the south end of another "magnet". Field lines are drawn as arrows so we need a convention to use when diagraming the magnetic field. So by convention the field lines will be directed from the north end of the magnet to the south end of the magnet. Opposites attract and likes repel.
Recall that a compass is just a small magnet and that its north end will be attracted to the south end of another "magnet". Field lines are drawn as arrows so we need a convention to use when diagraming the magnetic field. So by convention the field lines will be directed from the north end of the magnet to the south end of the magnet. Opposites attract and likes repel.300
This method of charging creates a temporary localized charge imbalance unless it is paired with some other process like grounding or conduction?
What is induction?
300
Describes the electric field inside a hollow metal conducting sphere.
What is zero or no electric field? Recall that the excess electric charges will distribute along the surface of a conductor so there is no electric field inside a hollow conductor. Revisit the video notes on shielding effect.
300
An object which has a shortage of electrons.
What is positively charged?
300
This describes how the net force between two charged particles will change if the size of one of the charged particles is halved while the distance between them is reduced by a factor of 2.
What is the force is increased by a factor of 2?
400
The following image
shows _________ poles near one another.
shows _________ poles near one another.What is like poles? (notice that the field lines connect between the magnets. If the field lines repel each other and there is a small gap where between them we would be looking at opposing poles. Check your notes for the illustration of this example you are responsible for both.)
400
This is an illustration of this charging process. Don't forget to indicate the final charge on the conducting sphere.
What is induction, grounding, and negative?
400
The field between these two charges is the strongest 
What is where the field lines are closest together?
400
This type of material is repelled by a magnetic field. However, the effect is extremely weak so to witness it you need an extremely strong magnetic field.
What is diamagnetic material?
400
Some students will mistakenly say that protons are transferred during the electrostatic charging process. This reason clearly explains why this is not possible.
What is the protons define the type of material. If the number of protons change then the material changes. The electrons are what is transferred during the charging process.
500
This is the angle between the geographic north pole and the area on the Earth which attracts the magnetic north end of a compass needle.
What is magnetic declination? 
Please also remember that the magnetic south pole is in the same hemisphere as the geographic north pole.
Please also remember that the magnetic south pole is in the same hemisphere as the geographic north pole.500
This method or charging works well with insulators.
What is charging by friction? 
Don't forget you will also need to be able to predict which objects gain the electrons and which ones lose them. Check your notes on how to read the triboelectric series.
Don't forget you will also need to be able to predict which objects gain the electrons and which ones lose them. Check your notes on how to read the triboelectric series. 500
The magnitude of the electric field in between two like charges.
What is zero? Just like magnetic fields if you place like charges near each other there is a point at which the fields will completely repel each other and there will be no net field at that point. This accounts for the small blank spot in the field lines in an illustration. 
500
This type of material has domains which are easily aligned to create a net magnetic field within the material. If the material is subjected to a strong magnetic field for a long period of time you can create a "permanent" magnet.
What is ferromagnetic material?
500
The diagram below illustrates three point charges. Each point charge has a magnitude of 3 microcoulombs and carries the sign illustrated. d1 is 5 cm, d2 is 1.5 cm. Calculate the magnitude of the net force on the center charge and indicate which direction the particle will accelerate - if it accelerates. 
What is 392.4N and the particle will accelerate to the right? If you are having difficulty with this watch the video on edline to help review how to work a net force problem.