QUESTION 5 When using the sink/float method to determine the similarities in densities between two objects...


  1. When using the sink/float method to determine the similarities in densities between two objects

    two immiscible liquids are chosen

    two liquids with identical densities are chosen

    the liquids chosen must contain bromine

    the particles will settle at the same level

    the particles will show buoyancy depending upon their size

10 points   


  1. A dispersion curve

    allows for the determination of the density of a substance

    shows the relationship between wavelength and refractive index

    is a means of determining the index of refraction

    shows the correlation between composition and density

    demonstrates that glass is an amorphous material

10 points   


  1. The Becke line

    can be used to determine the refractive index of glass

    shows the density difference between opaque samples

    depends upon temperature changes in a solid sample

    allows for the determination of density when the volume of the object is not known

    none of the above are correct

10 points   


  1. A typical soil samples does not contain

    inorganic minerals

    types of clay

    decayed vegetation

    decaying animal matter

    none of the above

10 points   


  1. Which of the following are not means of characterizing a soil sample

    sieve analysis


    refractive index


    organic solvent extraction

10 points   


  1. A high speed projectile striking glass without shattering it

    creates radial cracks on the same side as the impact

    creates a crater on the side of impact

    creates projectile fragments in the glass

    can show crater asymmetry indicating the direction of the projectile

    all of the above

10 points   


  1. What types of tests are typically performed to characterize a soil sample? (multiple answer question)?


    particle size

    inorganic fraction

    pack density

    mass spectrometry

Homework Answers

Answer #1

Out of all these questions only few questions are related to biology. So there answers are:

8) a soil sample cotain all these things i.e inorganic minerals, clay, decayed vegetation and animal last option none of the above is the right answer.

9) In this question PLM and organic solvent extraction methods can not be used to characterize soil samples because these terms are not related to the soil. Even i have doubt on SEM also that is scanning electron microscope.

11)Among these options particle size test can be performed to characterize soil samples.

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