Electricity
Electric Force
Separating Charges
Grounding
Concept Q's
100
Positively charged particles.
Protons
100
When charges are opposite they do this to one another.
Attract
100
Naturally objects have this charge.
Neutral
100
Another name for Ground.
The Earth
100

A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then is separated from the sphere by a small distance. After the rod is separated, the rod does this to the sphere.

Repels
200
Particles that are no more positive than they are negative.
Neutrons
200
The variable "q" represents this quantity in physics.
Charge
200
When insulators rub, charges move between them creating a separation of charge known as
Static Electricity
200
The ground has this type of charge.
Neutral
200

A negatively-charged plastic rod is brought close to (but does not touch) a neutral metal sphere that is connected to ground. After waiting a few seconds, the ground connection is removed (without touching the sphere), and after that the rod is also removed. The sphere is now

Positively charged

300
Only these particles may move.
Electrons
300
When charges are the same they will do this to one another.
Repel
300
When a balloon is rub on a wool sweater, afterwards it has this type of charge.
Negative
300
Objects that allow the flow of electrons are called this.
Conductors
300

A negatively-charged rod is brought close to (but does not touch) two neutral spheres that are in contact with each other but insulated from the ground. If the two spheres are then separated, what kind of charge will be on the spheres?

The sphere near the charged rod becomes positive and the other one becomes negative

400
These particles are located in the nucleus of an atom.
Protons and Neutrons
400
This is the unit for charge.
Coulomb
400
Static build up in clouds can produce this weather phenomenon.
Lightning
400
Objects that do not allow the flow of electrons are callled this.
Insulators
400

In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the speed of q?

Move with increasing speed

500
This is produced by moving electrons between atoms.
Electricity
500
Just like gravity, electric force increases as what quantity decreases.
Distance between them
500
In a circuit, these cause electrons to move by separating charges in chemicals.
Batteries
500
These types of charges will neutralize when grounded.
Positive and Negative
500

In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the acceleration of q?

Moves with decreasing acceleration

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