Natural Science CLEP Test: Quiz!

62 Questions | Total Attempts: 94

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Natural Science CLEP Test: Quiz!

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Questions and Answers
  • 1. 
    The spectroscopic (electron) configuration of an atom is [He]2s22p4. Which element is this?
    • A. 

      ₂He

    • B. 

      ₄Be

    • C. 

      ₅B

    • D. 

      ₇N

    • E. 

      ₈O

  • 2. 
    Which of the following elements is NOT a gas at room temperature (20°C)?
    • A. 

      Oxygen

    • B. 

      Bromine

    • C. 

      Argon

    • D. 

      Nitrogen

    • E. 

      Krypton

  • 3. 
    All things being equal, the deBroglie wavelength is greater for a particle of
    • A. 

      Higher speed

    • B. 

      Lower speed

    • C. 

      Greater charge

    • D. 

      Lower charge

    • E. 

      Greater spin

  • 4. 
    A particle and its antiparticle have
    • A. 

      The same masses

    • B. 

      Opposite momenta.

    • C. 

      Opposite charges.

    • D. 

      A and C

    • E. 

      B and C

  • 5. 
    When a nucleus undergoes beta decay, which of the following remains constant?
    • A. 

      The atomic-mass number

    • B. 

      The atomic number

    • C. 

      The nuclear spin

    • D. 

      A and C

    • E. 

      B and C

  • 6. 
    Heavy nuclei release energy during fission because
    • A. 

      the electrons get closer toge

    • B. 

      The electrons get farther apart.

    • C. 

      The binding energy per nucleon is greater for medium-mass nuclei.

    • D. 

      Some of the neutrons turn into electrons.

    • E. 

      some of the neutrons turn into gamma rays.

  • 7. 
    When a nucleus undergoes alpha decay
    • A. 

      The atomic mass changes

    • B. 

      The atomic number changes.

    • C. 

      The atomic number remains the same.

    • D. 

      A and B

    • E. 

      A and C

  • 8. 
    Radioactive decay of a nucleus Vertical axis: number of nuclei remaining Horizontal axis: time Select the graph below that best illustrates this.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 9. 
    A mass experiencing a constant acceleration Vertical axis: distance Horizontal axis: time Select the graph below that best illustrates this.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 10. 
    A solid is slowly heated past its melting point Vertical axis: temperature Horizontal axis: time Select the graph below that best illustrates this.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 11. 
    Static magnetic fields are caused by
    • A. 

      Static electric charges.

    • B. 

      Electric charges in motion.

    • C. 

      Static magnetic charges.

    • D. 

      Magnetic charges in motion.

    • E. 

      All of the above

  • 12. 
    Isotopes of an element have the same number of _______ but different numbers of _______.
    • A. 

      Electrons, protons

    • B. 

      Protons, neutrons

    • C. 

      Neutrons, protons

    • D. 

      Electrons, neutrons

    • E. 

      Protons, electrons

  • 13. 
    Which of the following pairs is most useful in determining a rock's origin?
    • A. 

      Color and shape

    • B. 

      Size and weight

    • C. 

      Density and hardness

    • D. 

      Composition and texture

    • E. 

      Size and hardness

  • 14. 
    Which of the following is an example of a one-way change?
    • A. 

      The hydrologic cycle

    • B. 

      The movement of nitrogen through the biosphere

    • C. 

      The history of a piece of rock

    • D. 

      The movement of water by the atmosphere

    • E. 

      The evolution of animal life

  • 15. 
    What materials are trapped in the Van Allen belts of the earth's magnetic field?
    • A. 

      Atomic particles

    • B. 

      Volcanic dust

    • C. 

      Small meteoroids

    • D. 

      Small asteroids

    • E. 

      Molecular compounds

  • 16. 
    Static magnetic fields exert forces on
    • A. 

      Static-electric charges

    • B. 

      Electric charges in motion.

    • C. 

      Static-magnetic charges.

    • D. 

      Magnetic charges in motion.

    • E. 

      All of the above

  • 17. 
    Light and sound share which of the following qualities?
    • A. 

      Both are transverse waves.

    • B. 

      Both require a medium in which to propagate.

    • C. 

      Their speed of propagation depends on temperature.

    • D. 

      Both exhibit diffraction and interference.

    • E. 

      Both are electromagnetic.

  • 18. 
    A rocket is traveling near the speed of light with respect to an observer. Compared to this observer's clocks, a clock on the rocket appears to run
    • A. 

      More slowly.

    • B. 

      At the same rate

    • C. 

      More quickly.

    • D. 

      More slowly or quickly, depending on the direction of the rocket.

    • E. 

      More slowly or quickly, depending on the kind of clock.

  • 19. 
    A book rests on a level table. The force holding it up is
    • A. 

      The strong nuclear force.

    • B. 

      The weak nuclear force.

    • C. 

      Electromagnetic

    • D. 

      Gravitation

    • E. 

      Friction

  • 20. 
    It is often said that matter consists mostly of empty space. This statement is
    • A. 

      True for gases, but not liquids or solids.

    • B. 

      True for light materials, but not dense ones.

    • C. 

      True because atomic nuclei and electrons have a small volume compared to that of an atom.

    • D. 

      True because all matter consists of clumps of atoms with gaps.

    • E. 

      False because matter fills all the space it occupies.

  • 21. 
    According to the special theory of relativity, observers in all inertial frames agree on the measurement of
    • A. 

      Rest mass.

    • B. 

      Electric charge.

    • C. 

      Energy

    • D. 

      A and B

    • E. 

      None of the above

  • 22. 
    An airplane is traveling horizontally at a constant velocity of 100m/s at a height of 122m. The pilot wants to drop a package into a net on the ground. When should he release it? (Note: neglect friction.)
    • A. 

      Just as the airplane passes over the net

    • B. 

      500m before the net

    • C. 

      250m before the net

    • D. 

      100m before the net

    • E. 

      There is not enough information to determine the time.

  • 23. 
    When an unbalanced force acts on an object in motion
    • A. 

      Its speed decreases.

    • B. 

      Its speed remains the same.

    • C. 

      Its speed increases.

    • D. 

      A and C

    • E. 

      A, B, and C

  • 24. 
    Diffraction of waves passing through a circular aperture depends on the
    • A. 

      Wavelength

    • B. 

      Diameter of the aperture.

    • C. 

      Amplitude of the wave.

    • D. 

      Ratio of the wavelength to the diameter.

    • E. 

      A and C

  • 25. 
    The correct formula for calcium chloride is:
    • A. 

      CaCL₂

    • B. 

      CACl

    • C. 

      CaCl

    • D. 

      CaCl₂

    • E. 

      Ca₂Cl

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