LES 1 Flashcards

(39 cards)

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

18
Q

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

19
Q

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

20
Q

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

21
Q

One coulomb is

22
Q

A single electron has?

23
Q

A single proton has

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
A static electric field is created when the charges are stationary and the corresponding force is known as
Electrostatic force
26
IS defined as the total number of electric line of force
Electric flux
27
IS the rate of flow of the electirc field through a given surface
Electric flux
28
A proton move outward or inward
Outward
29
An electron moves outward or inward
Inward
30
Is THE DIfference in the potential energy per unit charge between two locations in an electric field
Electric potential or Voltage
31
is deinfed to be the change in potential energy of a charged moved from A to B divided by the charge
Electric potential difference
32
is voltage the same as energy, true or fale
FAlse
33
The amount of work done by the electric field per unit charge in moving a charge between two points in an electric field is
Voltage
34
is a passive two terminal electrical component that stores potential energy in an electric field
Capacitor (it is composed of two conducting plated separated with a distance)
35
is defined as the ratio of the magnitude of the charge over the ratio of the magnitude of the potential difference
Capacitance
36
formulated the law of electromagnetism
Andre marie ampere
37
named after fard
Michael Faraday
38
This is to measure current
Ammeter
39
the energy needed to move a unit charged supplied by source it is measured in volts
EMF