[AMT 122] Aircraft Basic Electricity
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Questions and Answers

What is the primary component of the nucleus of an atom?

  • Ions
  • Protons and neutrons (correct)
  • Electrons
  • Molecules

    • Which of the following is NOT a characteristic of semiconductors?

  • They can be made of silicon or germanium.
  • They are used in electronic components.
  • They fall between conductors and insulators.
  • They are good conductors in pure state. (correct)

    • Which term describes the charge of a proton?

  • Negatively charged
  • Uncharged
  • Positively charged (correct)
  • Neutrally charged

    • What happens to like charges within an electric field?

    <p>They repel each other. (B)</p> Signup and view all the answers

    Which prefix represents one millionth?

    <p>Micro (μ) (C)</p> Signup and view all the answers

    Which of the following materials is NOT commonly used as a semiconductor?

    <p>Copper (A)</p> Signup and view all the answers

    What is the unit of measure for electric charge?

    <p>Coulomb (A)</p> Signup and view all the answers

    Which of the following correctly describes the behavior of unlike charges in an electric field?

    <p>They attract each other. (C)</p> Signup and view all the answers

    Which particle's mass is approximately 1,837 times greater than the mass of an electron?

    <p>Proton (D)</p> Signup and view all the answers

    What does the equation $A = \frac{Q}{s}$ represent?

    <p>Current in Amperes (D)</p> Signup and view all the answers

    What is the relationship described by Ohm's Law?

    <p>Voltage is directly proportional to current and inversely proportional to resistance. (B)</p> Signup and view all the answers

    What does electromotive force (EMF) represent?

    <p>The voltage developed by a source of electrical energy. (B)</p> Signup and view all the answers

    Which of the following statements reflects the characteristics of a good conductor?

    <p>It has a large amount of free electrons and allows a large current to flow. (B)</p> Signup and view all the answers

    Which of the following is NOT a factor that affects the resistance of a wire conductor?

    <p>Voltage (A)</p> Signup and view all the answers

    What is the SI unit of electric power?

    <p>Watt (D)</p> Signup and view all the answers

    In which direction does conventional current flow?

    <p>From Positive terminal to Negative terminal (D)</p> Signup and view all the answers

    Which of the following describes the potential difference in a circuit?

    <p>The voltage difference between any two points. (D)</p> Signup and view all the answers

    What does the term 'integrated drive generator' (IDG) refer to?

    <p>A device combining a constant speed drive with a generator. (D)</p> Signup and view all the answers

    What determines the amount of electric current (I) in a circuit?

    <p>The potential difference and resistance in the circuit. (B)</p> Signup and view all the answers

    What is the relationship between electric power and energy transfer in a circuit?

    <p>Power is the rate of transfer of electrical energy. (C)</p> Signup and view all the answers

    Which of the following describes the process of ionization?

    <p>An atom loses or gains electrons. (A)</p> Signup and view all the answers

    What is the maximum number of electrons an atom can hold in a shell defined by the formula $2n^2$?

    <p>8 (D)</p> Signup and view all the answers

    What defines a Bose-Einstein condensate state?

    <p>Atoms are cooled near absolute zero. (D)</p> Signup and view all the answers

    Which of the following materials is a good electrical insulator?

    <p>Plastic (C)</p> Signup and view all the answers

    What is the role of valence in chemistry?

    <p>It indicates how many bonds an atom can form. (D)</p> Signup and view all the answers

    What type of matter is plasma?

    <p>A superheated state in which atoms lose their electrons. (D)</p> Signup and view all the answers

    What constitutes a compound in chemistry?

    <p>Two or more elements chemically combined. (A)</p> Signup and view all the answers

    Which of the following correctly defines weight in physics?

    <p>The mass of an object multiplied by gravitational pull. (B)</p> Signup and view all the answers

    What is a characteristic of conductors?

    <p>They allow electric current to flow easily. (D)</p> Signup and view all the answers

    What is true about the atomic number of an element?

    <p>It represents the number of protons in the nucleus. (B)</p> Signup and view all the answers

    Flashcards

    Matter

    Anything that has mass and occupies volume.

    Atomic Number

    The number of protons in the nucleus of an atom.

    Weight

    The measure of gravitational pull on an object's mass.

    Electron Capacity

    Maximum number of electrons in a shell, defined as 2n².

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    Valence

    The number of chemical bonds an atom can form.

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    Plasma

    Superheated matter with ionized gas and free electrons.

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    Ionization

    The process by which an atom loses or gains electrons.

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    Cation

    An ion with a positive charge from losing electrons.

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    Anion

    An ion with a negative charge from gaining electrons.

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    Insulators

    Materials that do not conduct electrical current well.

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    Mixture

    A combination of elements or compounds brought together by physical processes.

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    Molecule

    The smallest particle that retains the identity of a substance, such as water (H2O).

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    Atom

    The most basic building block of matter, composed of protons, neutrons, and electrons.

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    Nucleus

    The center of an atom containing protons and neutrons.

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    Proton

    Positively charged particle in the nucleus of an atom.

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    Neutron

    Neutrally charged particle in the nucleus, with mass similar to protons.

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    Electric Field

    The field that surrounds electrically charged particles.

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    Coulomb

    The practical unit of electric charge, equal to the charge of 6.29 x 10^18 electrons.

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    Semiconductors

    Materials with properties between conductors and insulators, used in electronics.

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    Charging Principle

    Like charges repel and unlike charges attract each other in electric fields.

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    Voltage

    The pressure from an electrical circuit's power source.

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    Potential Difference

    The voltage difference between any two points in a circuit.

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    Conventional Current

    The flow of electric charge from positive to negative terminal.

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    Electron Flow

    The movement of electrons from negative to positive terminal.

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    Ohm's Law

    Voltage is directly proportional to current and inversely proportional to resistance.

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    Electric Power

    The rate of transfer of electrical energy in a circuit, measured in Watts.

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    Electric Current

    A flow of charged particles, typically electrons, in a circuit.

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    Factors affecting Resistance

    Material, Length, Cross Sectional Area, and Temperature of a wire.

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    AC vs DC

    AC is Alternating Current, while DC is Direct Current.

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    Electromotive Force (EMF)

    The voltage developed by any source of electrical energy.

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    Study Notes

    Matter and States of Matter

    • Matter is anything with mass and volume
    • Four states of matter: solids, liquids, gases, and plasma
    • Plasma is superheated matter, with electrons stripped from atoms, forming an ionized gas
    • Bose-Einstein condensate (BEC) is a fifth state, where atoms or particles are near absolute zero
    • Superfluidity is frictionless fluid flow

    Weight and Mass

    • Weight is the force of gravity on an object's mass
    • Weight = Mass x Gravity

    Atomic Structure

    • Electrons are negatively charged particles
    • Atomic number is the number of protons in an atom's nucleus
    • Electron capacity is the maximum number of electrons in a shell or sub-shell (2n²)
    • Valence is the number of chemical bonds an atom can form
    • Ionization is the process of an atom gaining or losing electrons, creating cations (loss) or anions (gain)

    Electrical Conductors

    • Conductors allow easy current flow; good examples include gold, copper, silver
    • Insulators do not conduct current well (e.g., glass, ceramic, plastic)

    Semiconductors

    • Semiconductors have properties between conductors and insulators, used in transistors and integrated circuits
    • Silicon and germanium are common semiconductor materials

    Electrical Units

    • Coulomb is a unit of electric charge (6.29 x 10¹⁸ electrons)
    • Ampere (A) is a unit of electric current (Coulomb/second)
    • Voltage (V or E) is a unit of electric potential
    • Ohm (Ω) is a unit of electrical resistance
    • Watt (W) is a unit of electric power
    • Prefix Mega (M): 1 million (1,000,000)
    • Prefix Kilo (k): 1 thousand (1,000)
    • Prefix Milli (m): 1/1,000th (0.001)
    • Prefix Micro (μ): 1/1,000,000th (0.000001)

    Static Electricity and Discharge

    • Static discharge can occur through conductors, vacuum, gas, or liquids
    • Types of static discharge include corona, streaming, and arcing
    • Conventional current flows from positive to negative
    • Electron flow from negative to positive

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    Description

    This quiz covers the fundamental concepts of matter, states of matter, and atomic structure. It will test your understanding of weight, mass, and the properties of conductors and insulators. Dive into the details of electrons, atomic numbers, and the special states like Bose-Einstein condensate.

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