Charged up
The study of stationary electric charges.
What is electrostatics?
The electrostatic force is very strong when objects are close but decreases rapidly as objects separate. What law applies to the magnitude of force in relationship to the distance?
What is the inverse square law?
An electroscope can demonstrate electrification by __________ and electrification by _______________.
What is induction and contact?
Electrons that are moving in predominantly the same direction are often referred to as________________
What is an electric current?
When this resistance is controlled and the conductor is made into a closed path
What is an electric circuit?
An object is said to be ___________ if it has too few or too many electrons
What is electrified?
Electrons on a conductor concentrate where?
WHat is on the sharpest curve?
When a charged object comes in contact with an uncharged object, the charged object confers the __________charge to the uncharged object.
What is same?
The movement of electrons is facilitated by these types of materials
What are conductors/superconductors
measured in ohms (Ω)
What is resistance?
Outer shell electrons can be removed easily because......
They are loosely bound (low binding energy)
Electrons bunched up at one end of a wire create an electric ______________
What is potential?
An example of a non-conductor or insulator
Wood, glass, rubber, plastic
Resistance in a conductor decreases as the temperature of material is________________
Measured in amperes (A)
What is current?
The electric field points __________ to/from a positive charge and _________to/from a negative charge
What is outward and inward?
The unit of electric potential
What is the Volt?
An uncharged metallic object experiences a shift of electrons when brought into the electric field of a charged object
What is induction?
The property of some materials to exhibit no resistance below a critical temperature
What is superconductivity?
Measured in volts (V)
What is electric potential?
Name 3 ways that something can be electrified
Contact, Friction, Induction
In the United States, the electric potential in homes and offices is ___________ volts. X-ray imaging systems require ___________volts.
What is 110 and 220?
The Primary function of an x-ray imaging system is to convert_____________ energy into ______________energy
What is electric and electromagnetic?
A material that under some conditions behaves as an insulator and in other conditions behaves as a conductor.
What is a semi-conductor?
The manner in which electric currents behave in an electric circuit is described by a relationship known as __________________
What is Ohm's law?