E.I.M Summative Test 10
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Questions and Answers

What is the negatively charged particle of an atom?

  • Protons
  • Electrons (correct)
  • Nucleus
  • Neutrons

    • What is the positively charged particle of an atom?

  • Electrons
  • Nucleus
  • Neutrons
  • Protons (correct)

    • What is the central part of an atom?

  • Protons
  • Electrons
  • Nucleus (correct)
  • Neutrons

    • What is the pressure that pushes the current?

    <p>Voltage</p> Signup and view all the answers

    What are electrons pushed by the voltage to generate electricity?

    <p>Current</p> Signup and view all the answers

    What lessens the current flow in the circuit?

    <p>Resistance</p> Signup and view all the answers

    What is the rate of power consumed by an appliance?

    <p>Watts</p> Signup and view all the answers

    What does the acronym EMF stand for?

    <p>Electromotive Force</p> Signup and view all the answers

    What is the formula designed by George Sigmund Ohm?

    <p>Ohm’s Law</p> Signup and view all the answers

    What is a material that allows the flow of electricity?

    <p>Conductor</p> Signup and view all the answers

    What is a material that does not allow electricity to pass through?

    <p>Insulator</p> Signup and view all the answers

    What part of the circuit controls the flow by turning on and off?

    <p>Switch</p> Signup and view all the answers

    What part of a circuit cuts off automatically when there are irregularities?

    <p>Fuse</p> Signup and view all the answers

    What part of a circuit consumes electricity?

    <p>Load</p> Signup and view all the answers

    What part of a circuit serves as the pathway of the current?

    <p>Wire</p> Signup and view all the answers

    What part provides power to a circuit?

    <p>Power Source</p> Signup and view all the answers

    What source of energy is taken from the heat of the sun?

    <p>Solar Energy</p> Signup and view all the answers

    What source of power is taken from the heat underground?

    <p>Geothermal Energy</p> Signup and view all the answers

    What source of power is generated from burning coal?

    <p>Coal-fired Power Plant</p> Signup and view all the answers

    What source of power is generated from windmills?

    <p>Wind Energy</p> Signup and view all the answers

    What source of power is generated from the pressure of moving water?

    <p>Hydro Energy</p> Signup and view all the answers

    What does 'A.C.' stand for?

    <p>Alternating Current</p> Signup and view all the answers

    What does 'D.C.' stand for?

    <p>Direct Current</p> Signup and view all the answers

    What is the power utility that provides electrical energy in Metro Cebu?

    <p>VECO</p> Signup and view all the answers

    What is the power utility that provides electrical energy in Metro Manila?

    <p>MERALCO</p> Signup and view all the answers

    What power utility provides electrical energy in Lapulapu City?

    <p>CEBECO</p> Signup and view all the answers

    What power utility provides electrical energy in the towns of Cebu Province?

    <p>MECO</p> Signup and view all the answers

    What is the formula used for solving the unknown voltage?

    <p>E = IR</p> Signup and view all the answers

    What is the formula used for solving the unknown current?

    <p>I = E/R</p> Signup and view all the answers

    What is the formula used for solving the unknown resistance?

    <p>R = E/I</p> Signup and view all the answers

    Match the following scientists with their contributions:

    <p>Charles Swift = Invented the Radio George Sigmund Ohm = Formulated OHM's Law Guillermo Marconi = MERALCO founder William Gilbert = Terrestrial Magnetism Otto Von Guericke = Made the first Manual Generator Michael Faraday = Electromagnetism and Electrochemistry Thales = Static electricity on AMBER Thomas Alba Edison = Invented the Light Bulb Charles Coulomb = Coulomb's Law, Attraction &amp; Repulsion Benjamin Franklin = Static electricity on kite and key</p> Signup and view all the answers

    Study Notes

    Atomic Structure and Electricity

    • Electrons are negatively charged particles within an atom.
    • Protons are positively charged particles found in the nucleus of an atom.
    • The nucleus serves as the atom's central core, containing protons and neutrons.
    • Voltage is the pressure that drives electric current through a circuit.
    • Current consists of electrons that flow due to voltage.

    Circuit Components

    • Resistance acts to limit current flow in an electrical circuit.
    • Watts represent the rate of power consumed by an electrical appliance.
    • EMF stands for Electromotive Force, a crucial concept in voltage generation.
    • Ohm's Law defines the relationship between voltage (E), current (I), and resistance (R).

    Conductors and Insulators

    • Conductors allow electric current to pass through easily, while insulators do not.
    • A switch is used to control the flow of electricity in a circuit, allowing for on/off operation.
    • A fuse protects circuits by automatically cutting off electrical flow during irregularities, such as short circuits.
    • A load refers to any component in a circuit that consumes electricity.

    Power Sources

    • Solar energy harnesses power from the sun's heat.
    • Geothermal energy is derived from heat sourced underground.
    • A coal-fired power plant generates electricity by burning coal.
    • Wind energy is produced by harnessing the power of wind through turbines.
    • Hydro energy is generated from the pressure of moving water.

    Current Types

    • AC stands for Alternating Current, which periodically changes direction.
    • DC stands for Direct Current, where the flow of electric charge is constant and unidirectional.

    Electrical Utilities

    • VECO supplies electrical energy in Metro Cebu.
    • MERALCO serves Metro Manila with electrical energy.
    • CEBECO provides electricity in various towns of Cebu Province.
    • MECO supplies power in Lapulapu City.

    Formulas in Electronics

    • The formula to calculate unknown voltage: E = IR.
    • To find unknown current, use I = E/R.
    • The formula for determining unknown resistance is R = E/I.

    Historical Contributions to Electrical Technology

    • Charles Swift is recognized as the founder of MERALCO.
    • George Sigmund Ohm formulated Ohm's Law, linking voltage, current, and resistance.
    • Guillermo Marconi invented the radio, enhancing communication technology.
    • Thomas Edison is famous for inventing the light bulb.
    • Michael Faraday made significant contributions to electromagnetism and electrochemistry.

    Acronyms in Electrical Technology

    • STEP stands for Students Technologists and Entrepreneurs of Philippines.
    • VECO is the Visayan Electric Company.
    • CEBECO represents Cebu Electric Cooperative.
    • MERALCO indicates Manila Electric Company.
    • MECO denotes Mactan Electric Company.
    • UPS means Uninterrupted Power Supply, important for power consistency.
    • AVR stands for Automatic Voltage Regulator.
    • CFL refers to Compact Fluorescent Lamp, an energy-saving lighting option.
    • AC/DC indicates Alternating Current / Direct Current.
    • PECS signifies Personal Entrepreneurs Competencies, emphasizing entrepreneurship in technology.

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    Description

    Test your knowledge with this summative quiz focused on the fundamentals of atomic structure and electrical concepts. Answer multiple-choice questions that cover topics such as electrons, protons, and voltage. Perfect for students in an E.I.M course!

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