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A group of students perform an experiment to test terminal velocity, which is the greatest speed obtained by a falling object. The students dropped different numbers of coffee filters and measured the resulting terminal velocity. Which of the following conclusions is supported by the data in the following table?

A. Heavier objects take more time to reach terminal velocity.

B. Heavier objects fall faster than lighter objects.

C. Terminal velocity is when the force of gravity is equal to air resistance.

D. The greater the number of filters, the smaller the terminal velocity.

Answer Explanation:

Looking at the given table, increasing number of filters increases the mass. It is noted that terminal velocity increases with increasing mass. Thus, we can conclude that heavier objects (large masses) fall faster that lighter ones.

Therefore, the Correct Answer is B.

More Questions on TEAS 7

  • Q #1: In an experiment, the one variable that is changed is called the

    A. dependent variable

    B. experimental variable

    C. independent variable

    D. controlled variable

    Answer Explanation

  • Q #2: The measurement indicated by the line across the center of the cell is best referred to as which of the following?  

    A. Radius

    B. Volume

    C. Area

    D. Diameter

    Answer Explanation

    In the given figure, the line runs from point of the circle to the other through the center. This is known as diameter of the circle.

  • Q #3: Parasitic worm infestation is a hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

    A. Lack of worm infestations is the cause of some autoimmune disorders

    B. Worm infestation prevents the body from immune malfunction.

    C. Worm infestation reduces the severity of certain autoimmune disorders

    D. Worm infestations exacerbate the body’s immune reactions.

    Answer Explanation

    From the recent discovery, worm infestation relieves the effect of certain autoimmune disorders. From the given options, the hypothesis can be modified as: worm infestation reduces the severity of certain autoimmune disorders.