Electric Force - Coulomb's Law

Electric Force - Coulomb's Law

11th Grade

15 Qs

quiz-placeholder

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Electric Force - Coulomb's Law

Electric Force - Coulomb's Law

Assessment

Quiz

Others

11th Grade

Hard

Created by

JEMERA DEBELA

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Coulomb's Law?

Coulomb's Law is related to gravitational forces.

Coulomb's Law only applies to magnetic fields.

Coulomb's Law states that opposite charges repel each other.

Coulomb's Law describes the electrostatic force between charged objects.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

State the mathematical expression for Coulomb's Law.

F = k * q1 * q2 / r^2

F = k * q1 / r^2

F = k * q2 / r^2

F = k * |q1 * q2| / r^2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the SI units of charge and distance in Coulomb's Law?

Ohm (Ω) and inch (in)

Coulomb (C) and meter (m)

Volt (V) and centimeter (cm)

Ampere (A) and kilometer (km)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the concept of electric force according to Coulomb's Law.

The electric force is directly proportional to the distance between charged objects.

Coulomb's Law only applies to neutral objects.

The electric force is inversely proportional to the charges of the objects.

The concept of electric force according to Coulomb's Law states that the force between two charged objects is proportional to the product of their charges and inversely proportional to the square of the distance between them.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the magnitude of the electric force between two charges change with an increase in distance?

Reverses direction

Increases

Remains constant

Decreases

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If two charges are brought closer together, what happens to the electric force between them?

Reverses direction

Remains constant

Decreases

Increases

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the proportionality constant in Coulomb's Law?

9.80665 N m/kg

6.6743 x 10^-11 N m^2/kg^2

3.1416 x 10^7 N m^2/C^2

8.9875 x 10^9 N m^2/C^2

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