Physical Science Tutor Competency Quiz

10 Questions | Total Attempts: 235

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Natural Science Quizzes & Trivia

Questions and Answers
  • 1. 
    An alternating-current-carrying wire induces a current in another nearby wire. This phenomenon is the basis of operation of which of the following devices?
    • A. 

      Motor

    • B. 

      Generator

    • C. 

      Galvanometer

    • D. 

      Transformer

  • 2. 
    The buoyant force exerted by a fluid on an entirely submerged object is equal to _________________.
    • A. 

      The mass of the submerged object

    • B. 

      The gravitational force acting on the submerged object

    • C. 

      The density of the submerged object

    • D. 

      The weight of the fluid displaced by the submerged object

  • 3. 
    What is the kinetic energy of a 12-kg toy car moving at a velocity of 3m/s?
    • A. 

      36J

    • B. 

      54J

    • C. 

      108J

    • D. 

      18J

  • 4. 
    Compounds that have the same molecular formula but different chemical structures are called _________________.
    • A. 

      Covalent

    • B. 

      Ionic

    • C. 

      Metallic

    • D. 

      Isomers

  • 5. 
    ___________ states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.
    • A. 

      Boyle's Law

    • B. 

      Charles' Law

    • C. 

      Avogadro's Law

    • D. 

      Ideal Gas Law

  • 6. 
    A bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other, is called a __________.
    • A. 

      Covalent bond

    • B. 

      Ionic bond

    • C. 

      Metallic bond

    • D. 

      Hydrogen bond

  • 7. 
    When dissolved in water, bases have all of the following properties except _______________.
    • A. 

      Have a sour taste.

    • B. 

      Change red litmus to blue

    • C. 

      Have a slippery feeling

    • D. 

      Conduct electricity

  • 8. 
    The reaction of methane with oxygen has the following unbalanced equation: CH₄(g) + O₂(g) CO₂(g) + H₂O(l). The coefficient for oxygen in the balanced equation is ______.
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      5

  • 9. 
    What wave propagation principle accounts for the apparent increase in frequency as a train whistle approaches and the apparent decrease in frequency as it moves away?
    • A. 

      Refraction

    • B. 

      Reflection

    • C. 

      Diffraction

    • D. 

      Doppler effect

  • 10. 
    Melting ice is an example of increasing ___________.
    • A. 

      Entropy

    • B. 

      Enthalpy

    • C. 

      Heat loss

    • D. 

      Gibbs free energy

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