LES 1 Flashcards

1
Q

This has a negative charge and attracted to PROTONS

A

Electrons

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2
Q

Is the outermost shell of the atoms

A

Valence electrons

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3
Q

A mixture of metal and nonmental Ex: sILICONE, BORON, arsenic,

A

Metalloids

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4
Q

iS the presence or flow of electrons

A

Electricity

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5
Q

It freely moves electrons and a material in which electricity can easily flow

A

Conductors (Ex: copper, steel, gold, silver,)

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6
Q

This hold onto their electrons and can build a static and often used for safety purposes

A

Insulators (ex, wood, glass, rubber)

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7
Q

It collects charge but cannot flow

A

Static charge

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8
Q

River is to water molecules as wire is to

A

Electrons

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9
Q

rubbing the balloon hair causes the ballon to gain?

A

Electrons

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10
Q

True or false, electrons and protons have the same magnitude?

A

True

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11
Q

These are electrically neutral or have no charge

A

aTOMS

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12
Q

If an atom gains or loses electrons it gains a charge and become ???

A

An ion

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13
Q

Rubber objects almost always gain what type of charge

A

A negaative charge

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14
Q

A glass rod rubbed with silk will gain what type of charge

A

Positive

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15
Q

These are liquid solutions that can conduct electricity

A

Electrolytes

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16
Q

What are the 2 methods that can be used to charge objects

A

Conduction and induction

17
Q

A rubber rod is rubbed on a rabbits fur, the rubber rod now has negative charge is what type of charge

A

Conduction

18
Q

A charging method that charges an obeject wihtout actually touch the object

A

Induction

19
Q

When u bring a charged object near an uncharged object the object gets?

A

Polarized

20
Q

The force of attraction or repulsion between two charged bodies is directly proportional

A

Coulombs LAW

21
Q

One coulomb is

A

6.25x10^18

22
Q

A single electron has?

A

-1.60x10^-19

23
Q

A single proton has

A

1.60x10^-19

24
Q

is an invisible force field caused by an electric charge which results in electric forced when placed to one another

A

Electric field

25
Q

A static electric field is created when the charges are stationary and the corresponding force is known as

A

Electrostatic force

26
Q

IS defined as the total number of electric line of force

A

Electric flux

27
Q

IS the rate of flow of the electirc field through a given surface

A

Electric flux

28
Q

A proton move outward or inward

A

Outward

29
Q

An electron moves outward or inward

A

Inward

30
Q

Is THE DIfference in the potential energy per unit charge between two locations in an electric field

A

Electric potential or Voltage

31
Q

is deinfed to be the change in potential energy of a charged moved from A to B divided by the charge

A

Electric potential difference

32
Q

is voltage the same as energy, true or fale

A

FAlse

33
Q

The amount of work done by the electric field per unit charge in moving a charge between two points in an electric field is

A

Voltage

34
Q

is a passive two terminal electrical component that stores potential energy in an electric field

A

Capacitor (it is composed of two conducting plated separated with a distance)

35
Q

is defined as the ratio of the magnitude of the charge over the ratio of the magnitude of the potential difference

A

Capacitance

36
Q

formulated the law of electromagnetism

A

Andre marie ampere

37
Q

named after fard

A

Michael Faraday

38
Q

This is to measure current

A

Ammeter

39
Q

the energy needed to move a unit charged supplied by source it is measured in volts

A

EMF