Moment Arm in Physics

The perpendicular distance between the axis of rotation and the line of the action of force is called the moment arm of the force.

“Plus, while you turn the page, you take a short break,” says psychologist David B. Daniel. In that short space, the brain can store the information you just read. Daniel was one of the authors of a study that tested students’ comprehension of text. During the experiment, some listened to a podcast, while others read the same information on paper. Then everyone passed the comprehension test. And the results of the participants from the first group were 28% lower.