# Shared Flashcard Set

## Details

SOS Physics
Switched on Schoolhouse Physics
32
Physics
01/22/2016

Term
 The earliest ideas of charge were the result of experiments by who?
Definition
 William Gilbert
Term
 Common units of electrical force are
Definition
 Newtons
Term
 A positive charge means:
Definition
 Lack of electrons
Term
 Lightning is formed when clouds are charges _________________
Definition
 With respect to earth
Term
 An insulator is a material that:
Definition
 Has essentially no free electrons
Term
 Charges may be transferred by
Definition
 Conduction
Term
 True or False. An instrument used to measure charge is called an electroscope
Definition
 True
Term
 A ________ provides a steady flow of charge to the load connected to its terminals
Definition
 Battery
Term
 In 1787, _______ discovered a relationship between charge, their separation, and their force
Definition
 Coulomb
Term
 Coulomb's law indicates the like charges _________ and opposite charges ___________
Definition
 Repel, attract
Term
 Coulomb's law indicates that force between 2 charges _______ when as their separation decreases
Definition
 decreases
Term
 Positive charge
Definition
 Result of excess of electrons
Term
 Negative charge is the result of
Definition
 Deficit of electrons
Term
 Conductor has :
Definition
 Abundance of free elctrons
Term
 Insulator
Definition
 Object with few free electrons
Term
 The field strength around a charged object is the direction of the force acting on a __________
Definition
 Unit positive test charge
Term
 Force between 2 point charges is described by ___________ law
Definition
 Coulomb's law
Term
 Differences in _______ between clouds and earth frequently gives rise to lightning
Definition
 charge
Term
 Early experiments with static electricity were done by who
Definition
 Gilbert
Term
 Force between objects _______ when their separation ______
Definition
 decreases, increases
Term
 What are the characteristics of a good conductor?
Definition
 Outer electrons of elements are able to migrate readily and are loose
Term
 If distance between 2 charged plates is increased, the field strength between the plates _______
Definition
 decreases.
Term
 Field vector is the direction of the force on a _____________ charge
Definition
 unit positive
Term
 Device that stores electric energy is a :
Definition
 Capacitor
Term
 Flow of electrical field is called current. True or False
Definition
 True
Term
 The Unit of current is the :
Definition
 ampere
Term
 The fact that electrical current return to the source of the current is the law of:
Definition
 Conservation of charge
Term
 True or False. Mass is equal to charge
Definition
 False
Term
 Newton's law of gravitational attraction has the same form as Coulomb's law. True or False
Definition
 True
Term
 Potenitals and electric fields both result from electrical charges. True or False
Definition
 True
Term
 Both field and the potential between 2 charged parallel plates are due to charges on the plates. True or False
Definition
 True
Term
 True or False. Charge on a capacitor can be discharged by connecting the plates with an insulator.
Definition
 False
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