General Physics 2

It is a physical property of an object that causes to be attracted toward or repelled from another charged object.

• Electromagnetic force

• Electric charge

• Electric field  

• Static electricity

Each charged object generates and is influenced by a force is called__________.

• Electric charge

• Electromagnetic force

• Electric field

• Static electricity

The build- up of electric charge on the surface of an object is called_________.

• Electric charge

• Electromagnetic force

• Electric field

• Static electricity

 Which statements are true about Electron Transfer?

I. It is  a reaction in which a single electron is transferred from one molecule to another.

II. When rubbing two materials, electrons may be transferred from  one material to another.

III. Electron transfer occurs when atoms gain or lose electrons.

IV. Electrons always move from a region of higher potential energy to a region of  lower potential energy.

• I and IV

• II, III, and IV

• I, II, III, and IV

• None of the above

 Any substance that has a free electrons and allows charge to move freely through is called_______.

• Conductors

• Insulator

• Superconductor

• Electroscope

A material that can conduct electricity without resistance or energy loss when cooled to a critical temperature.

• Conductors

• Insulator

• Superconductor

• Electroscope

These materials can hold electrons securely within their atomic orbit. It prevents the easy transfer of energy, such as heat, cold, or electricity.

• Conductors

• Insulator

• Superconductor

• Electroscope

Who is Charles-Augustin de Coulomb?

• An English mathematician famous for his work in calculus.

• French physicist known for his contributions to the study of electricity and magnetism.

• An Italian astronomer renowned for his discoveries about planetary motion.

• A German chemist recognized for his experiments on atomic structure.

The mathematical formula to calculate the electrostatic force vector between two charged particles is ________.

• Coulomb’s Law

• Ohm’s Law

• Equipotential line

• Electric Field

The SI unit for charge is the _________, with protons and electrons having charges of opposite sign but equal magnitude; the magnitude of this basic charge /q_e / is q_e = 1.60x10^-19 C.

• Coulomb

• Newton

• Voltage ( V)

• Joules