While researching a topic, a student has taken the following notes: • A lever is a simple machine consisting of a rigid beam and a fulcrum. • The fulcrum is the point about which the beam pivots. • The input force (effort) is the force applied to the lever. • The output force (load) is the force that the lever exerts on another object. • In first-class levers, the fulcrum is located between the effort and the load. • In second-class levers, the load is located between the effort and the fulcrum. The student wants to contrast first-class levers and second-class levers. Which choice most effectively uses relevant information from the notes to accomplish this goal?
","rationale_html":"Choice D is the best answer. The sentence contrasts first-class levers and second-class levers, explaining that the fulcrum in a first-class lever is between the effort and the load, whereas in a second-class lever the load is between the effort and the fulcrum. Choice A is incorrect. The sentence defines two terms associated with levers; it doesn’t contrast first-class levers and second-class levers. Choice B is incorrect. While the sentence seems to acknowledge a general difference in fulcrum and load locations between first-class and second-class levers, it does not specify what this difference is. Moreover, the sentence could be read as emphasizing a similarity—that in both types of levers, the fulcrum and load are in different locations. The sentence thus fails to effectively contrast the two types of levers. Choice C is incorrect. The sentence describes a similarity between first-class and second-class levers; it doesn’t contrast them. 32 SAT PRACTICE TEST #5 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n READING AND WRITING: MODULE 2
","correct_answer":["D"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"In levers, the effort is the force applied to the lever; the load, in contrast, is the force that the lever exerts on another object.
","ord":0},{"label":"B","content_html":"In first-class and second-class levers, the fulcrum and the load are in different locations.
","ord":1},{"label":"C","content_html":"First-class levers are simple machines consisting of a rigid beam and a fulcrum, but then again, the same is true of second-class levers.
","ord":2},{"label":"D","content_html":"In first-class levers, the fulcrum is located between the effort and the load, but in second-class levers, the load is located between the effort and the fulcrum. ST
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