IP eos semster 2

Which of the following correctly labels the three subatomic particles of an atom, their charges, and their locations?

• Proton: positive, nucleus; Neutron: neutral, nucleus; Electron: negative, electron cloud

• Proton: negative, nucleus; Neutron: positive, electron cloud; Electron: neutral, nucleus

• Proton: neutral, electron cloud; Neutron: negative, nucleus; Electron: positive, nucleus

• Proton: positive, electron cloud; Neutron: negative, nucleus; Electron: neutral, nucleus

Static electricity is a buildup of unbalanced _______________.

• charges (or electric charges)

• currents

• magnets

• wires

Static Electricity: An object becomes positively charged when it loses which of the following?

• Protons

• Neutrons

• Electrons

• Atoms

The process of transferring charge by touching is called charging by _______________.

• contact

• induction

• friction

• radiation

Which of the following correctly defines a conductor and gives an example?

• A conductor allows electricity to flow through it easily; example: copper

• A conductor does not allow electricity to flow through it; example: rubber

• C. A conductor is a type of insulator; example: glass

• A conductor is a material that blocks heat; example: plastic

A circuit is:

• a closed path through which electric current flows

• a type of battery

• an electrical switch

• a source of light

What happens to the total resistance in a circuit if you add more resistors?

• It increases

• It decreases

• It stays the same

• It becomes zero

______________ is the tendency to oppose the flow of electrons.

• Resistance

• Capacitance

• Inductance

• Conductance

What would happen to the current if the resistance in a circuit increased?

• The current would increase

• The current would decrease

• The current would stay the same

• The current would fluctuate

An alarm clock draws 0.8 A of current when connected to an 80-volt circuit. Calculate its resistance.

• 100 ohms (Resistance = Voltage / Current = 80 V / 0.8 A)

• 64 ohms (Resistance = Voltage / Current = 80 V / 1.25 A)

• 0.01 ohms (Resistance = Voltage / Current = 0.8 V / 80 A)

• 160 ohms (Resistance = Voltage / Current = 80 V / 0.5 A)