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ASVAB · Simple Machines (Levers, Pulleys, Gears)

An inclined plane (ramp) makes lifting a heavy object easier by:

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Correct answer

Reducing the force needed by increasing the distance over which the force is applied

  1. A Making the object lighter
  2. B Eliminating the need for force
  3. C Increasing gravity
  4. D Reducing the force needed by increasing the distance over which the force is applied

Why this is the answer

An INCLINED PLANE (ramp) reduces the FORCE needed to raise an object by spreading the work over a greater DISTANCE. ASVAB Mechanical Comprehension tests simple machines. Instead of lifting straight up (high force, short distance), you push up the ramp (less force, longer distance) — the work (force × distance) is about the same, but the force is reduced. A LONGER, more gradual ramp requires less force than a short, steep one. This force-distance trade-off (mechanical advantage) applies to all simple machines and is commonly tested.
Source: ASVAB Mechanical Comprehension — Inclined Plane

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About this topic: Simple Machines (Levers, Pulleys, Gears)

Simple machines — levers, pulleys, gears, inclined planes, wheel-and-axle, screws — are the heart of Mechanical Comprehension. Each question comes down to mechanical advantage: how much the machine multiplies force, and the trade-off in distance. This is one of 23 Mechanical Comprehension questions on simple machines (levers, pulleys, gears), each with a full explanation on a single study page.

New to this exam? Our ASVAB exam guide explains the format, scoring, and how to prepare.

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