Forces and Their Impact

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Questions and Answers

Which of the following is true about force in physics?

  • Force is a scalar quantity.
  • Force can only cause an object to accelerate.
  • Force is not important in classical mechanics.
  • Force is represented by the symbol F. (correct)

What is the SI unit of force?

  • Kilogram (kg)
  • Joule (J)
  • Newton (N) (correct)
  • Watt (W)

Which of Newton's laws of motion relates force, mass, and acceleration?

  • Fourth law
  • Third law
  • Second law (correct)
  • First law

What is the rotational version of force called?

<p>Torque (A)</p> Signup and view all the answers

What are some types of forces encountered in classical mechanics?

<p>Elastic, frictional, and contact forces (B)</p> Signup and view all the answers

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