What is Coulomb's Law?
Coulomb's Law

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Physics
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11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Coulomb's Law describes the electrostatic force between two charged objects, stating that the force is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.
2.
FLASHCARD QUESTION
Front
What happens to the electrostatic force if the distance between two charges is doubled?
Back
The force is reduced by a factor of 1/4.
3.
FLASHCARD QUESTION
Front
If the magnitude of both charges is doubled, what happens to the electrostatic force?
Back
The force quadruples.
4.
FLASHCARD QUESTION
Front
What is the formula for calculating the electrostatic force between two charges?
Back
F = k * (|q1 * q2|) / r^2, where F is the force, k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.
5.
FLASHCARD QUESTION
Front
What is Coulomb's constant (k)?
Back
Coulomb's constant (k) is approximately 8.99 x 10^9 N m²/C².
6.
FLASHCARD QUESTION
Front
How does the sign of the charges affect the electrostatic force?
Back
Like charges repel each other (force is positive), while opposite charges attract each other (force is negative).
7.
FLASHCARD QUESTION
Front
Calculate the force between two charges of +5 C and +8 C that are 8 m apart.
Back
F = k * (|5 * 8|) / 8^2 = 5.625 x 10^9 N.
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