Understanding Friction and Drag Forces

To reduce the efficiency of the machinery

To add extra weight to the machinery

To increase friction between moving parts

To minimize wear and tear on the moving parts (correct)

To slow down the moving objects (correct)

To speed up the moving objects

To reduce the friction between the moving objects and their surroundings

To minimize wear and tear on the moving objects

Because the surfaces are actually not smooth, but have rough textures (correct)

Due to the absence of any force acting against the surfaces

Because of the presence of lubricants on the surfaces

Due to the absence of any rough textures

<p>To reduce wear and tear on moving parts</p> Signup and view all the answers

<p>To improve speed and performance</p> Signup and view all the answers

<p>Because of their rough textures</p> Signup and view all the answers