Electric Force Calculation Quiz

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What does Coulomb's law apply to?

Pairs of point charges (correct)

Charges in motion

Pairs of opposite charges

Groups of more than five charges

What is the principle of superposition in Coulomb's law?

The net force on any charge is the sum of forces from other charges (correct)

The force at a point is independent of the other charges

The forces are always repulsive

Charges can cancel each other's effects

What is the value of Coulomb's constant, k?

$3.00 \times 10^8$ m/s

$6.67 \times 10^{-11}$ N(m/kg)$^2$

$9.81$ m/s$^2$

$8.99 \times 10^9$ N/m$^2$/C$^2$ (correct)

What is the net force on particle 2 due to the other 2 charges in the given scenario?

$-9$ N Signup and view all the answers

If three charged particles are arranged in a line, what will be the resultant force experienced by particle 3 due to particles 1 and 2?

$-9$ N Signup and view all the answers

What will be the force on particle q3 (-86 µC) due to q1 (65 µC) and q2 (50 µC) at their respective coordinates?

$8.55 \times 10^{-5}$ N Signup and view all the answers

If the distance between two charged objects is doubled, how does the electrostatic force between them change?

The force is reduced by a factor of 4 Signup and view all the answers

What is the unit of the Coulomb constant (k) in Coulomb's law?

N-m$^2$/C$^2$ Signup and view all the answers

According to Newton's third law, what can be said about the electric forces between two charged objects?

The forces are equal and opposite Signup and view all the answers

If the charge of one object is doubled, while the charge of the other object remains the same, how does the electrostatic force between them change?

The force doubles Signup and view all the answers

If both the charges of two objects are doubled, how does the electrostatic force between them change?

The force quadruples Signup and view all the answers

What is the direction of the electrostatic force between two charged objects?

The force is directed along the line connecting their centers Signup and view all the answers

If the distance between two charges is doubled, how does the electrostatic force between them change?

The force is quartered Signup and view all the answers

If two charges have the same sign, the force between them is:

Repulsive Signup and view all the answers

What is the unit of the Coulomb constant (k) in the expression for electrostatic force?

N*m^2/C^2 Signup and view all the answers

If the charges on two objects are doubled, how does the electrostatic force between them change?

The force is quadrupled Signup and view all the answers

If two charges exert a force on each other, which of the following statements is true according to Newton's third law?

The force exerted by charge A on charge B is equal and opposite to the force exerted by charge B on charge A Signup and view all the answers

What happens to the electrostatic force between two charges if the medium between them changes from air to water?

The force remains the same Signup and view all the answers

Electric Force Calculation Quiz

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