ELECTRIC CHARGE Flashcards

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1
Q

electric come from the Greek word of amber which is ——–

A

elektron

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2
Q

it is one of the basic forms of energy

A

electricity

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2
Q

it can be generated in many ways and is associated with charges electrons and protons

A

electricity

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3
Q

it is the electric discharge between a clound and the ground

A

Lightning

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4
Q

2 types of charges

A

static charge
moving charge

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5
Q

these are charges in which they stay in one place and can be produced by conduction and induction of charges via a charging body

A

Static

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6
Q

it is the flow of electric charges from one point to another

A

moving

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7
Q

it is like the current flowing through a wire

A

moving

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8
Q

2 types of charging processes

A

conduction
induction

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9
Q

it is charging with contact and where electrons move directly from one body to another

A

Conduction

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10
Q

it is charging without contact and is where electrons move to or from the ground

A

Induction

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11
Q

3 charging processes

A

positively charged
negatively charged
neutral

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12
Q

it when there is an excess of positive charges

A

positively charged

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13
Q

it is when there is an excess of negative charges

A

Negatively charged

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14
Q

it is when there is an equal number of positive and negative charges

A

Neutral

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15
Q

what type of charging process is it when a charging body (+) physically touches the neutral body

A

Charging by Conduction

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16
Q

what type of charging process is it when the polarization of Body B. The negative charges are attracted to the charging body (A). the positive charges are repelled by (A)

A

Charging by Conduction

17
Q

what type of charging process is it when the flow of electrons from B to A because electrons are more mobile

A

Charging by Conduction

18
Q

what type of charging process is it when Body B acquires the same charge as A. A and B repels

A

Charging by conduction

19
Q

what type of charging process is it when a charging body (+) is brought near a neautral body (B) but without physical contact

A

Charging by Induction

20
Q

what type of charging process is it when the polarization of body B. The negative charges are attracted to the charging body (A). the positive charges are repelled by (A)

A

Charging by Induction

21
Q

what type of charging process is it when the grounding of Body B. The flow of electrons from the ground to B

A

Charging by Induction

22
Q

what type of charging process is it when the Body B acquires negative charges and becomes negatively charged. A and B attract

A

Charging by Induction

23
Q

like charges —–

A

repel

24
Q

unlike charges —-

A

attract

25
Q

it is when the net charge of the two objects taken together does not change

A

Law of conservation of charge

26
Q

these are properties of matter are due its structure and electric nature of atoms

A

Bohr’s Model

27
Q

2 types of interaction of particles

A
  • Annhilation Process
  • Pair Production
28
Q

what interaction of particles process is this?
e- + e+ —-> y + y

A

Annihilation Process

29
Q

what interaction of particles process is this?

y —–> e- + e+

A

Pair Production

30
Q

What is the mass of ELECTRON, e-?

A

9.11 x 10^-31 kg

31
Q

What is the charge of ELECTRON, e-?

A

-1.6 x 10^-19 C

32
Q

What is the mass of PROTON, p?

A

1.67 x 10^-27 kg

33
Q

What is the mass of NEUTRON?

A

1.67 x 10^-27 kg

33
Q

What is the change of PROTON, p?

A

+ 1.6 x 10^-19 C

34
Q

what are the 4 classification of materials?

A
  • Conductors
  • Insulators
  • Semiconductors
  • Superconductors
35
Q

it is a conduct electric current in which significant number of charges are free to move

A

Conductors

36
Q

these are non-conductors in which charges are very much localized (stays in position)

A

Insulators

37
Q

it behaves as insulators and sometimes as conductors

A

Semiconductors

38
Q

no resistance at a critical temperature

A

Superconducters