Physics 101: Important Definitions Revision

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Questions and Answers

What is the definition of strain?

  • The response of the body to an applied force or stress. (correct)
  • A medium that carries energy based on the vibrations of the medium.
  • The resistance of a liquid to its internal motion or to objects inside it.
  • A transformation in the physical properties of a substance without altering its chemical composition.

What does Hooke's law state?

  • The movement that repeats itself regularly over equal time intervals and in which the acceleration is directly proportional to the displacement.
  • A process where the chemical composition of a substance is altered, resulting in the formation of one or more new substances.
  • Before the elastic limit, stress is directly proportional to strain. (correct)
  • The resistance of a liquid to its internal motion or to objects inside it.

What is the phenomenon of resonance?

  • It is an external factor that affects the ear, causing the sensation of hearing.
  • A transformation in the physical properties of a substance without altering its chemical composition.
  • A phenomenon that occurs when the external frequency equals the natural frequency of the object. (correct)
  • The resistance of a liquid to its internal motion or to objects inside it.

What is the definition of matter?

<p>Anything that has mass and occupies space. (C)</p> Signup and view all the answers

What is the definition of elasticity?

<p>Property of a material that allows it to return to its original shape and size after force disappearance. (A)</p> Signup and view all the answers

What is the definition of physics?

<p>The experimental science that expresses the nature of everything around us and turns it into laws and observations (D)</p> Signup and view all the answers

What is displacement?

<p>The change in position of an object from its initial point to its final point, measured in a straight line (C)</p> Signup and view all the answers

Which term refers to the change of position of an object with respect to time?

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

What does acceleration measure?

<p>Rate at which an object changes its velocity over time (B)</p> Signup and view all the answers

Which term represents the total length of the path traveled by an object, irrespective of direction?

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

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