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63 Cards in this Set
- Front
- Back
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Electricity comes from the Greek word |
electron |
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During the ancient times, when amber is rubbed against a rod along with a piece of cloth, the amber attracts small piece of dust. This is what we called |
the “amber effect”. |
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The fundamental quantity that underlies all electrical phenomena. |
Electric Charges |
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positively charge subatomic particle |
Proton |
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negatively charge subatomic particle |
Electron |
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electrically neutral subatomic particle |
Neutron |
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An atom that loses an electron becomes |
positively charged |
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An atom that gains an electron becomes |
negatively charged |
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An object with a greater number of positive charges is ionized positively and become |
positively charge. |
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The law of charges due to the consequences of their ionization is stated as |
Opposite charges attract, like charges repel. |
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The net amount of electric charge produced in any process is |
zero |
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Total Net Charge is always? |
the same. |
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what will be the result if Contact occurs between charged object and neutral object through direct contact. |
same charge |
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Electrons transfer to the object making it the same charge |
Conduction |
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Electrons move within the object making it the closest side oppositely charged |
induction |
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Materials that allow electrons to flow freely are called |
Conductors |
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Materials that hinders the flow of electrons are called |
insulators |
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Materials which have conductivity between conductors and insulator |
SemiConductor |
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The fundamental quantity that underlies all electrical phenomena. |
Electric Charge |
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“Opposite charges attract, like charges repel” |
1st Law of Electrostatic |
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The net amount of electric charge produced in any process is zero. |
Law of Conservation of Charge |
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Total Net Charge always the same. |
Law of Conservation of Charge |
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Who discovered Coulomb's Law of Electrostatic? |
Charles Augustine Coulomb |
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An increase in the charge of the object would indicate |
an increase in the electric force between the two charges |
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An increase in the distance of the two charges allows the electric field to . |
decrease |
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A region of space in which an electric charge will experience a force when place in it. |
Electric Field |
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A positively charged particles creates |
outward electric fields |
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A negatively charged particles creates |
inward electric fields |
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A neutrally charged particles |
does not produce outward nor inward electric fields |
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Lightning is an electric discharge caused by? |
imbalance |
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Defined as a force acting upon an object to cause a displacement |
Work |
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The ability to do work |
Energy |
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The unit of energy is named after who? |
James Prescott Joule |
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He had Huge contribution in the study of engines, Electricity and heat |
James Prescott Joule |
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The unit of potential difference is named after the Italian physicist |
Alessandro Volta |
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It consists of two plates of conducting material (usually a thin metal), sandwiched between them is an insulator made of ceramic, film, glass or other materials, even air. |
Capacitor |
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A material used to separate the conductive plates of a capacitor |
Dielectric |
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difference of electrical potential between two points |
potential difference |
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amount of electric potential energy per unit |
electric potential |
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the potential difference in charge between two points in electric field |
voltage (cause) |
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physically field that surrounds electrically charged particles and exert force on all other charged particles in the field, either attracting or repelling them |
electric field |
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rate at which electric charge flows fast point in circuit |
current (effect) |
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Ampere named after who? |
andre marie ampere |
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rate of flow of charge per unit time |
current (effect) |
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property of a material that limits current flow |
resistance |
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Ohm is named after who? |
georg simon ohm |
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there is direct proportionally between current and voltage but an inverse proportionality between current and resistance |
Ohm's Law |
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what are the factor affecting resistance |
length of conductor cross sectional area of the conductor resistivity of the material |
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temperature also affects the resistance in directly proportional manner |
temperature and resistance |
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amount of energy provided by the battery to each coulomb of change passes through the circuit |
electromotive force |
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at some point equal to the potential difference they are not the same thing |
electromotive force |
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isn't actually a force |
electromotive force |
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made by connecting the end of the device to the beginning of another |
series circuit |
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electrons has only one pathway to flow |
series circuit |
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when one bulb or device is busted, the other will not operate |
series circuit |
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the same terminals of both devices are connected together |
parallel circuit |
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electron has two more pathways |
parallel circuit |
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when when one bulb or device is busted, one other will operate |
parallel circuit |
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also called excess charge because a charge object has an excess of charge either positive or negative |
net charge |
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the coulomb force per unit charge the electric field exert on the positive charge placed in the region of field |
electric field intensity |
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electrical discharge caused by imbalance between storm clouds and ground or within the cloud themselves |
lightning |
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energy needed to move an electrical charge against an electric field |
electrical potential energy |
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energy possessed buy and charge in an electrical field giving it ability to do work |
electrical potential energy |
