Mastering Moments
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Questions and Answers

Which of the following is the correct equation for calculating the moment of a force?

  • Moment = Force / Perpendicular Distance
  • Moment = Force - Perpendicular Distance
  • Moment = Force * Perpendicular Distance (correct)
  • Moment = Force + Perpendicular Distance

What is the unit of measurement for moments?

  • Meters
  • Kilograms
  • Newtons
  • Newton metres (correct)

Which of the following is an example of a lever?

  • A seesaw
  • Scissors
  • A spanner turning around a nut (correct)
  • A door opening around a fixed hinge

If a 10-centimetre-long spanner is used to turn a nut with a 25 Newton force, what is the moment?

<p>2.5 Newton metre (A)</p> Signup and view all the answers

What are the two factors that determine the size of a moment?

<p>The size of the force applied and the perpendicular distance to the pivot (A)</p> Signup and view all the answers

Which of the following is the correct formula for calculating the moment of inertia of an object with constant mass density?

<p>$I = \int r^2 , dm$ (A)</p> Signup and view all the answers

Which of the following is the correct unit of measurement for moment of inertia?

<p>kg/m^2 (A)</p> Signup and view all the answers

What is the rotational analogue to mass?

<p>Moment of inertia (A)</p> Signup and view all the answers

When can the moment of inertia of simple objects with geometric symmetry be determined in an exact closed-form expression?

<p>When the mass density is constant (A)</p> Signup and view all the answers

What is the second moment of area used for?

<p>Beam calculations (C)</p> Signup and view all the answers

Which of the following is the correct equation for calculating the moment of a force?

<p>Moment = Force x Distance (C)</p> Signup and view all the answers

What is the unit of measurement for moments?

<p>Newton meters (D)</p> Signup and view all the answers

What is the rotational analogue to mass?

<p>Moment of inertia (C)</p> Signup and view all the answers

What are the two factors that determine the size of a moment?

<p>Force and distance (D)</p> Signup and view all the answers

Which of the following is an example of a lever?

<p>Screwdriver (B)</p> Signup and view all the answers

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