the law of conservation of angular momentum
analyses of the way in which the bodys mass is distributed
equations of linear motion in three dimensions
analyses of the sources that produce rotational motions
the technical terms for movements such as leaps and turns
19. The author implies that dancers can become more skilled by doing which of the following?
Ignoring rotational movements
Understanding the forces that permit various movements
Solving simple linear equations
Learning the technical terms utilized by choreographers
Circumventing the law of conservation of angular momentum
20. Analysis of which of the following would require the kind of complex approach described in lines 14-19?
A long leap across space
A short jump upward with a return to the same place
A sustained and controlled turn in place
Short, rapid steps forward and then backward without turning
Quick sidesteps in a diagonal line
Human relations have commanded peoples attention from early times. The ways of people have been recorded in innumerable myths, folktales, novels, poems, plays, and popular or philosophical essays. Although the full significance of a human relationship may not be directly evident, the complexity of feelings and actions that can be understood at a glance is surprisingly great. For this reason psychology holds a unique position among the sciences. Intuitive knowledge may be remarkably penetrating and can significantly help us understand human behavior, whereas in the physical sciences such commonsense knowledge is relatively primitive. If we erased all knowledge of scientific physics from our modem word, not only would we not have cars and television sets, we might even find that the ordinary person was unable to cope with the fundamental mechanical problems of pulleys and levers. On the other hand if we removed all knowledge of scientific psychology from our world, problems in interpersonal relations might easily be coped with and solved much as before. We would still know how to avoid doing something asked of us and how to get someone to agree with us; we would still know when someone was angry and when someone was pleased. One could even offer sensible explanations for the whys of much of the selfs behavior and feelings. In other words, the ordinary person has a great and profound understanding of the self and of other people which, though unformulated or only vaguely conceived, enables one to interact with others in more or less adaptive ways. Kohler, in referring to the lack of great discoveries in psychology as compared with physics, accounts for this by saying that people were acquainted with practically all territories of mental life a long time before the founding of scientific psychology.
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