If During a Given Physical Process the Only Force Acting

question 97

Multiple Choice

If during a given physical process the only force acting on an object is friction,which of the following must be assumed in regard to the object's kinetic energy?

• A)It decreases.
• B)It increases.
• C)It remains constant.
• D)It cannot be determined from the information given.

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Definitions:

Mutually Exclusive

A statistical term describing two events that cannot occur at the same time, implying no overlap between the events.

Null Hypothesis

A statement of equality between sets of variables. See Research Hypothesis.

Percentage

A portion of 100 that expresses a part of a whole, commonly used in comparing quantities.

Chi-square Statistic

A measure used in statistics to assess the goodness-of-fit between observed frequencies and expected frequencies based on a theoretical distribution.