Gwnls Final Exam 9th Science Dec 2013

47 Questions | Total Attempts: 40

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Science Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of the following is NOT a potential sign of chemical change?
    • A. 

      Change in odor

    • B. 

      Fizzing

    • C. 

      Change in color

    • D. 

      Boiling

  • 2. 
    Which of the following is a physical change?
    • A. 

      Dissolving

    • B. 

      Evaporating

    • C. 

      Bending

    • D. 

      All of the above

  • 3. 
    An object that floats on a fluid is ______________ the fluid
    • A. 

      Less dense than

    • B. 

      Equally dense as

    • C. 

      More dense than

    • D. 

      Being dissolved in

  • 4. 
    The process of a solid becoming a gas is called  
    • A. 

      Sublimation

    • B. 

      Condensation

    • C. 

      Evaporation

    • D. 

      Freezing

  • 5. 
    The process of a gas becoming a liquid is called
    • A. 

      Melting

    • B. 

      Freezing

    • C. 

      Condensation

    • D. 

      Evaporation

  • 6. 
    The heavier a particle, the _________________ it moves
    • A. 

      Faster

    • B. 

      Slower

    • C. 

      More

    • D. 

      Less

  • 7. 
    The state of matter with definite shape and definite volume
    • A. 

      Plasma

    • B. 

      Solid

    • C. 

      Gas

    • D. 

      Liquid

  • 8. 
    Bernoulli's principle states that if you increase the speed, then the pressure will
    • A. 

      Increases

    • B. 

      Stays the same

    • C. 

      Explode

    • D. 

      Decreases

  • 9. 
    The resistance of a fluid to flow is
    • A. 

      Archimede's principle

    • B. 

      Viscosity

    • C. 

      Conserved

    • D. 

      Absorbed

  • 10. 
    When ice melts to form water, energy
    • A. 

      Is created

    • B. 

      Is destroyed

    • C. 

      Is released

    • D. 

      Is absorbed

  • 11. 
    In a ______________ the particles can slide past each other, but are still packed together
    • A. 

      Solid

    • B. 

      Liquid

    • C. 

      Gas

    • D. 

      Plasma

  • 12. 
    Which of the following is not a fluid
    • A. 

      Gas

    • B. 

      Air

    • C. 

      Liquid

    • D. 

      Marshmallow

  • 13. 
    If gas is at a constant volume (inside a propane bottle or can of hair spray), then an increase in temperature would cause a(n) _______________________________in pressure
    • A. 

      No change

    • B. 

      Increase

    • C. 

      Decrease

    • D. 

      Release

  • 14. 
    Which is no a particle of an atom
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Radical

    • D. 

      Electron

  • 15. 
    An atom's mass number equals the number of
    • A. 

      Protons and electrons

    • B. 

      Neutrons

    • C. 

      Protons

    • D. 

      Protons and neutrons

  • 16. 
    Valence electrons are
    • A. 

      The electrons closest to the nucleus

    • B. 

      The electrons in the outermost energy level

    • C. 

      The electrons with a positive charge

    • D. 

      The electrons that cannot be shared

  • 17. 
    Atoms have no charge because they
    • A. 

      Have an equal number of protons and electrons

    • B. 

      Have neutrons in the nucleus

    • C. 

      Have an equal number of protons and neutrons

    • D. 

      Are nonpolar

  • 18. 
    Alkali Metals are very reactive because
    • A. 

      Have small atomic masses

    • B. 

      Are not solids at room temperature

    • C. 

      Have one valence electron

    • D. 

      Have two valence electrons that bond with calcium

  • 19. 
    Neutrons and protons are found where in an atom
    • A. 

      Orbiting the nucleus

    • B. 

      In the nucleus

    • C. 

      In the polar corners

    • D. 

      Both in the nucleus and orbiting the nucleus

  • 20. 
    The name of the family/group 18
    • A. 

      Noble Gases

    • B. 

      Alkaline Earth Metals

    • C. 

      Alkali Metals

    • D. 

      Halogens

  • 21. 
    Two or more atoms may join together to form
    • A. 

      Molecules

    • B. 

      Elements

    • C. 

      Larger atoms

    • D. 

      Protons

  • 22. 
    Two different isotopes of Hydrogen have different
    • A. 

      Numbers of electrons

    • B. 

      Atomic numbers

    • C. 

      Number of protons

    • D. 

      Number of neutrons

  • 23. 
    The periodic table organizes elements into groups (families) that have similar
    • A. 

      Atomic masses

    • B. 

      Properties

    • C. 

      Symbols

    • D. 

      Atomic numbers

  • 24. 
    Potassium, an alkali metal is highly reactive because
    • A. 

      It conducts heat

    • B. 

      It conducts electricity

    • C. 

      Has one electron in its outer energy level

    • D. 

      Is soft and shiny

  • 25. 
    The forces that hold atoms together
    • A. 

      Electric currents

    • B. 

      Chemical bonds

    • C. 

      Physical bonds

    • D. 

      Nuclear forces

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