TOEFL EXERCISES - LESSONS 98 TO 100

DIRECTIONS

a) In this Part B, you will be given a variety of reading material (single sentences, paragraphs, advertisements, and the like) followed by questions about the meaning of the material. You are to choose the one best answer (A, B, C, D), to each question.

b) You must answer all questions following a passage on the basis of what is stated or implied in that passage.

c) Finally,  after answering all the questions on each exercise page  click CHECK HERE YOUR ANSWERS at the bottom of each exercise page. Please don't check questions individually as the answer page is designed to show you the answers to all the questions displayed on the page.

QUESTIONS # 31-35 refer to the following passage:

The general principles of dynamics are rules which demonstrate a relationship between the motions of bodies and the forces which produce those motions. Based in large part on the work of his predecessors, Sir Isaac Newton deduced three laws of dynamics which he published in 1687 in his famous Principia.

Prior to Newton, Aristotle had established that the natural state of a body was a state of rest, and that unless a force acted upon it to maintain motion, a moving body would come to rest. Galileo had succeeded in correctly describing the behavior of falling objects and in recording that no force was required to maintain a body in motion.

He noted that the effect of force was to change motion. Huygens recognized that a change in the direction of motion involved acceleration, just as did a change in speed, and further, that the action of a force was required. Kepler deduced the laws describing the motion of planets around the sun. It was primarily from Galileo and Kepler that Newton borrowed.

CHECK HERE YOUR ANSWERS

CLICK HERE FOR QUESTIONS # 36 TO 39

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