Coulomb's Law

Coulomb's Law

Assessment

Flashcard

Physics

11th Grade

Hard

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16 questions

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1.

FLASHCARD QUESTION

Front

What is Coulomb's Law?

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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