A Physics Student Looks into a Microscope and Observes That

question 53

Multiple Choice

A physics student looks into a microscope and observes that small particles suspended in water are moving about in an irregular motion.Which of the following statements is the best explanation for this observation?

• A)Water molecules strike the particles giving them the same average kinetic energy as the water.
• B)The particles are carried by convection currents in the water.
• C)The small particles may be considered a fluid;and thus,move about randomly.
• D)The actual motion is regular,but the speeds of particles are too large to observe the regular motion.
• E)The particles are moving to be uniformly distributed throughout the volume of the water.

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Definitions:

Congress Of Industrial Organizations

A federation of unions that organized workers in industrial unions in the United States and Canada from 1935 until 1955.

American Federation Of Labor

A national federation of labor unions in the United States, founded in 1886, known for advocating for better working conditions, wages, and hours for workers.

Skilled Workers

Individuals who have acquired through training or experience the technical skills necessary for performing specific, complex job tasks.

National Labor Relations Act

A 1935 U.S. law that protects the rights of employees and employers, encourages collective bargaining, and curtails certain private sector labor and management practices.