Electrostatics And Electrodynamics

Question 1

What is the principle reservoir for excess electric charge?

Answer 1

The Earth

Question 2

Regarding the movement of an electric charge from one atom to another atom

Answer 2

Usually outer shell electrons move

Question 3

What is electrostatics

Answer 3

Concerns resting electric charges

Question 4

Coulomb’s law states that electrostatic force is

Answer 4

Inversely proportional to the square of the distance between changes

Question 5

What are the 3 methods of electrification

Answer 5

Contact, induction, and friction

Question 6

Static electricity can

Answer 6

Make ones hair stand on end

Question 7

The unit of electrostatic charge is

Answer 7

Coulomb

Question 8

The principle electrostatic law states that

Answer 8

An electron will repel an electron

Question 9

Objects become electrified because of

Answer 9

The transfer of electrons

Question 10

The phenomenon of lighting occurs when

Answer 10

One cloud is positive electrified and an adjacent one is negatively electrified

Question 11

What are the five electrostatic laws?

Answer 11

1: like charges repel and unlike charges attract
2: the electrostatic force between two charges is directly proportional to the product of their quantities and inversely proportional to the square of the distance between them
3: Electric charges reside only one the external surface
4: the concentration of charges on a curved surface of a conductor is greatest where the curvature is greatest
5: only negative charges are free to move in solid conductors

Question 12

An electrostatic force is created when an

Answer 12

Proton approaches a proton

Question 13

When a copper conductor becomes electrified

Answer 13

A kink in the wire will have high surface electrification

Question 14

When 2 objects touch permits electrons to move from one object to another

Answer 14

Contact

Question 15

Electrical fields acting on one another without contact

Answer 15

Induction

Question 16

The only charges that can move on solid conductors

Answer 16

Negative

Question 17

The concentration of charges on a curved surface of a conductor is greatest where

Answer 17

The curvature is greatest

Question 18

Reside only on external surface of conductors

Answer 18

Electric charges

Question 19

Inversely proportional to the distance squared

Answer 19

The electrostatic force

Question 20

The greater the electrostatic charge on each object the greater the

Answer 20

Electrostatic force

Question 21

Electrostatic force between two charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them

Answer 21

Coulomb’s law

Question 22

Points outward from positive charge and into a negative charge

Answer 22

Electric field

Question 23

Surrounding every changed body there is a region in which a force is exerted on another charged body

Answer 23

Electric field

Question 24

The force of attraction of repulsion between charges

Answer 24

Electrostatic force

Question 25

No electrostatic force in or not acted upon

Answer 25

Uncharged objects

Question 26

Hass to be very cold and has a easy flow with hardly any resistance

Answer 26

Superconductors

Question 27

Off and on and it sometimes allows flow

Answer 27

Semiconductor

Question 28

Allow free flow of negative charge

Answer 28

Conductor

Question 29

Does not allow the flow of negative charge

Answer 29

Nonconductors or insulators

Question 30

How readily it allows flow of negative charge is determined by

Answer 30

Atomic structure of object

Question 31

Deficiency of electrons

Answer 31

Positively charges

Question 32

Excess of electrons

Answer 32

Negatively charge

Question 33

Process of removing or adding negative charges to a body of matter

Answer 33

Electrification

Question 34

If you have more electrons than protons it’s

Answer 34

Negative

Question 35

If you have more protons than electrons it’s

Answer 35

Positive

Question 36

If their are the same number of electrons and protons

Answer 36

Neutral

Question 37

Addition of an electron to a neutral atom gives it a

Answer 37

Negative charge

Question 38

If one or more electrons are removed the atom is

Answer 38

Positively charges

Question 39

All atoms contain what in motion around a nucleus

Answer 39

E-

Question 40

They are uncharged elementary particles found in the nucleus of a atom

Answer 40

Neutrons

Question 41

Electric charge deals with what charge since they are freely move able

Answer 41

Negative electric

Question 42

They are free to move from atom to atom because they are located outside the nucleus Inner-shell are more tightly bound than putter-shell

Answer 42

Electrons

Question 43

They are fixed inside the nucleus of a atom and are not free to move

Answer 43

Protons

Question 44

The smallest unit of an electric charge is

Answer 44

Protons and elections

Question 45

Electric charges are measured in

Answer 45

Coulombs

Question 46

Electric charge is a property of

Answer 46

Matter

Question 47

The study of at rest electrical charges

Answer 47

Electrostatics

Question 48

The study of electric charges in motion

Answer 48

Electrodynamics

Question 49

For electric current to move there must be

Answer 49

Electric potential

Question 50

The ability to do work because of a separation of charges

Answer 50

Electric potential

Question 51

1 coulomb flowing by a given point in 1 second

Answer 51

Ampere

Question 52

Ampere May also be defined as

Answer 52

Amount of current

Question 53

The flow of charges particles

Answer 53

Electric current

Question 54

Flow in one direction

Answer 54

Direct current

Question 55

Oscillating back and forth

Answer 55

Alternating current

Question 56

The electrical resistance

Answer 56

Ohm

Question 57

That property of that element in a circuit that impedes the flow of electricity

Answer 57

Resistance

Question 58

Resistant depends on

Answer 58

Material, length, cross-sectional area, temperature

Question 59

Results in reduced flow of water

Answer 59

Resistance

Question 60

The unit of measure for frequency

Answer 60

Hertz

Question 61

Each cycle is

Answer 61

1/60th of a second

Question 62

X-axis

Answer 62

Time

Question 63

Y-axis

Answer 63

Amplitude of current

Question 64

A closed pathway composed of wires and circuit elements through which electricity may flow

Answer 64

Electric circuit

Question 65

The pathway for electricity must be what for electricity to be able to flow?

Answer 65

Closed

Question 66

What kind of circuit is one in which the pathway is broken, such as occurs when a switch is turned off

Answer 66

Open circuit

Question 67

A complex circuit that has different voltages and current flowing through different sections

Answer 67

A xray circuit

Question 68

A device that produces electrons through a chemical reaction, stores and electric charge for the long term and provides an electric potential

Answer 68

Battery

Question 69

A device that is like a battery in that it stores an electric charge but works very differently in that it cannot produce new electrons and stores the charge only temporarily

Answer 69

Capacitor

Question 70

Is a “one way valve” device and allows electrons to flow in o my one direction

Answer 70

Diode

Question 71

Act as emergency devices that break or open the circuit if there is a sudden surge of electricity to the circuit or device

Answer 71

Fuses, circuit, and breakers

Question 72

Simply a section a special wire, usually encased in glass, that quickly melts if the current flow rises excessively, thus opening the circuit

Answer 72

Fuse

Question 73

Acts in the same manner as a fuse, if the current flow rises excessively, the circuit breakers internal switch is tripped, stopping the flow of electricity

Answer 73

Circuit breaker

Question 74

Inhibits the flow of electrons

Answer 74

Resistor

Question 75

Adjustable or variable for of resistor

Answer 75

Rheostat

Question 76

Device that opens a circuit

Answer 76

Switch

Question 77

Device that can increase or decrease voltage

Answer 77

Transformer