Chapter 9 and 10 Review

Question 1

what is the study of the nature, behavior and uses of static stationary electricity related phenomenon

Answer 1

electrostatics

Question 2

protons and electrons posses a certain amount of ____ which is a property that allows them to attract or repel other charged particles

Answer 2

electric charge

Question 3

what is defined as the interaction btw electrons and other charged particles

Answer 3

electricity

Question 4

if an object has an equal number of protons to electrons, it is …?

Answer 4

neutral

Question 5

what is the SI unit of electric charge

Answer 5

coulomb

Question 6

what states that opposites attract and likes repel in relation to charges

Answer 6

law of electric charge

Question 7

what are the imaginary lines of electric force called

Answer 7

lines of force

Question 8

what type of electric field occurs when the strength is equal throughout

Answer 8

uniform field

Question 9

name the ways that charge can be transferred

Answer 9

induction and conduction

Question 9

which method of charge transfer occurs over a distance

Answer 9

induction

Question 10

which method of charge transfer produces an opposite charge

Answer 10

induction

Question 10

what is the flow of charge

Answer 10

current

Question 11

what is a simple device that uses the law of electrostatics to detect a small amount of charge

Answer 11

electroscope

Question 12

what is the flow of electrons or other charged particles from one place to another

Answer 12

current electricity

Question 13

what type of current flows in only one direction

Answer 13

direct current

Question 14

SI unit of current

Answer 14

ampere

Question 15

what is defined as the work per charge

Answer 15

voltage

Question 16

what does the unit of a volt reduce to

Answer 16

joule per coulomb

Question 17

what is the equation to determine the power of electric consumption

Answer 17

p = vi

Question 18

SI unit of power

Answer 18

watt

Question 19

unit of electric power cosumption

Answer 19

kilowatt hour

Question 20

the amount a certain object hinders electron flow

Answer 20

resistance

Question 21

Si unit of resistance

Answer 21

ohm

Question 22

the type of material that readily transmits electricity

Answer 22

conductor

Question 23

what type of material is not a good insulator or conductor

Answer 23

semiconductor

Question 24

what is the resistance that is converted into heat

Answer 24

joule heat

Question 25

material allowing current to flow through it with no resistance

Answer 25

superconductor

Question 26

law that helps us understand the relationship btwn voltage, current, and resistance

Answer 26

ohms law

Question 27

what is any electrical device designed to add resistance to a circuit

Answer 27

resistor

Question 28

the 3 components of any circuit

Answer 28

load, set of conductors, and a source of current

Question 29

device that may be included in the circuit and is responsible for opening or closing the circuit

Answer 29

switch

Question 30

is the circuit open or closed if electricity is flowing

Answer 30

closed

Question 31

what type of circuit occurs when the electricity bypasses the load

Answer 31

short circuit

Question 32

what is a simple circuit protection device that uses a thin strip of metal to protect the circuit

Answer 32

fuse

Question 33

circuit protection device that acts like a switch

Answer 33

circuit breaker

Question 34

circuits can be arranged in one of two ways, which arrangement occurs if we have loads on after another

Answer 34

series

Question 35

how do you find the equivalent resistance of resistors that are in parallel

Answer 35

add the inverses of the resistance of each load, then inverse it again

Question 36

what quantity is the same thru series resistors

Answer 36

the current

Question 37

what is an obj capable of attracting materials like iron or steel by magnetic force

Answer 37

magnet

Question 38

what do we call regions of concentrated magnetism

Answer 38

poles

Question 39

what states that opposite poles attract and like poles repel

Answer 39

law of magnetic poles

Question 40

what is the property of attracting an object by a magnetic force

Answer 40

magnetism

Question 41

magnetic force btwn 2 object is proportional how with respect to the strength of the poles

Answer 41

directly proportional

Question 42

what si the ability of a material to absorb lines of flux

Answer 42

permeability

Question 43

name the ways a magnetic field is produced

Answer 43

unpaired electrons, electrons spinning,

Question 44

what is group of aligned atoms having a single magnetic field

Answer 44

domain

Question 45

what theory states that once all the regions of a magnetic material align it will form a magnet

Answer 45

domain theory

Question 46

the magnetic material that is weakly attracted to a magnet

Answer 46

pairamagnetic

Question 47

what type of material is strongly attracted to a magnet

Answer 47

ferromagnetic

Question 48

type of magnet readily loses or gains its magnetism

Answer 48

temporary magnet

Question 49

what type of material does not readily become magnetic

Answer 49

magnetically hard

Question 50

2 ways we can magnetize something

Answer 50

conduction, induction

Question 51

what rule allows us to determine the directional of a magnetic field around a wire or loop

Answer 51

left hand rule

Question 52

name the 3 ways an electromagnet's strength can be increase

Answer 52

1. adding a core 2. increase electric flow/current 3. create more loops in the wire

Question 52

what do we call the force existing in a magnetic field that causes a moving electric charge to deviate from its path

Answer 52

deflecting force

Question 53

what is the point at which we can heat a magnet and it loses its magnetism

Answer 53

curie point

Question 54

name of the book that Gilbert published his findings about earth being a magnet

Answer 54

de magnete

Question 54

the resistance of a magnet to be demagnetized by a magnetic field

Answer 54

coercivity

Question 55

a simple type of navigational device consisting of a magnet swinging freely so it aways points north

Answer 55

compass

Question 56

the north magnetic pole is actually what type of pole

Answer 56

south-seeking

Question 57

what is the deviation of a compass from true north

Answer 57

declination

Question 58

what is a map that shows the angle of declination for the entire earth

Answer 58

isogonic map

Question 59

what is the imaginary line that encircles halfway btwn the 2 magnetic poles

Answer 59

magnetic equator

Question 60

a map that has lines running east to west that have lines of equal inclination

Answer 60

isoclinic lines

Question 61

what is the extent of a planets magnetic field

Answer 61

magnetosphere

Question 62

the magnetosphere is distorted by what?

Answer 62

solar winds

Question 63

what are the two vast doughnut shaped belts of high speed charged particles that protect the earth from radiation

Answer 63

van allen radiation belts