SAT Question 441f0505: Answer & Explanation

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.

Difficulty:Medium

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?

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.

In first-class and second-class levers, the fulcrum and the load are in different locations.

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.

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.

SAT Question 441f0505: Rhetorical Synthesis answer and explanation

Explanation

Why the other choices are wrong