Protons have a _______________ electrical charge: electrons have a _________________ electrical charge.
Electricity and Charge Flashcard

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•
Physics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Protons have a positive electrical charge; electrons have a neutral electrical charge.
2.
FLASHCARD QUESTION
Front
Current is usually the flow of _____________.
Back
Current is usually the flow of electrons.
3.
FLASHCARD QUESTION
Front
Materials that do not allow electric current to pass through easily are called ______________.
Back
Materials that do not allow electric current to pass through easily are called insulators.
4.
FLASHCARD QUESTION
Front
Making wires thinner, longer, or hotter _____________ voltage.
Back
Making wires thinner, longer, or hotter decreases voltage.
5.
FLASHCARD QUESTION
Front
The tendency for a material to oppose the flow of electrons is called ______________.
Back
The tendency for a material to oppose the flow of electrons is called resistance.
6.
FLASHCARD QUESTION
Front
What is the unit of electric current?
Back
The unit of electric current is the Ampere (A).
7.
FLASHCARD QUESTION
Front
What is the relationship between voltage, current, and resistance?
Back
The relationship is defined by Ohm's Law: V = I × R, where V is voltage, I is current, and R is resistance.
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