Electric Charge and Coulomb's Law

What is static electricity?

• A net amount of positive or negative electric charge on an object.

• The flow of electrons through a conductor.

• The attraction between opposite charges.

• The repulsion between like charges.

What is the primary difference between a conductor and an insulator?

• Conductors are always metals, while insulators are always wood.

• Conductors allow free electrons to move easily, while insulators hold electrons tightly.

• Insulators have more protons than electrons, while conductors have an equal number.

What happens to a neutral glass rod when it is rubbed with a cloth, causing electrons to hop onto the cloth?

• The rod becomes negatively charged.

• The rod remains electrically neutral.

• The rod gains an overall positive charge.

What does the Law of Conservation of Electric Charge state?

• A net electric charge can never be created; charge can only move from one place to another.

• Objects always return to a neutral state after being charged.

• Only positive charges can be conserved, not negative charges.

What is the process of connecting a charged object to the ground to make it electrically neutral called?

• Polarization

• Induction

• Grounding

• Conduction

A neutral metal rod is brought near a negatively charged rod, causing polarization. If the neutral rod is then grounded while the charged rod is still nearby, what will be the final charge of the metal rod after the ground connection is severed and the charged rod is removed?

• Negatively charged

• Positively charged

• Electrically neutral

• Partially neutral

What is the term for the charge of a single electron in Coulombs, denoted by a lowercase 'e'?

• Atomic charge

• Fundamental charge

• Elementary charge

• Unit charge

In Coulomb's Law, F = k * (q1*q2)/r^2, what does the variable 'k' represent?

• Kinetic energy

• Coulomb's constant

• Gravitational constant

• Electrical resistance

If the force is positive, the particles

• repel one another

• attract one another