Electrostatics 2 class work

Which of the following units is incorrectly matched with the quantity?

• A Force (F) = Newtons (N)

• B Charge (Q) = Coulomb (C)

• C Distance (r) = Metres squared (m²)

• D Coulomb's Constant (K) = N.m².C^-2

• A. +, -

• B. -, +

• C. -, -

• D. +, +

• Q_A is Negative and Q_B is Positive

• Q_A is Positive and Q_B is negative

• Q_A is Negative and Q_B is Negative

• Q_A is Positive and Q_B is Positive

Using Coulomb's Law, when is the Electrical Force found to be greatest between two charges?

• A. When charges are far apart

• B. When charges are close together

• C. None of them

• D. Both A and B

Particles that lose electrons become ............................. charged.

Particles that gain electrons become ............................. charged.

Electric charges that are different (unlike)................................each other.

• Both Attract and repel

• Neither Attract nor repel

• Repel

• Attract

Electric charges that are the same (like)................................each other.

• Attract

• Repel

• Both attract and repel

• Neither attract nor repel

According to Coulomb's law, Electric force is directly proportional to..........................................

• Q₁

• Q₂

• Both Q₁ and Q₂

• r²

According to Coulomb's law, Electric force is indirectly proportional to..........................................

• r

• r²

• Q₁ and Q₂

• K (Coulomb constant)