elasticity

• What are the different types of elasticity discussed in the video?

  Elastic and inelastic deformation
• What does the term "spring constant" refer to?

  It measures how much force is needed to stretch a spring by one meter
• What is Hooke's Law?

  It states that force is proportional to extension
• What happens when a force is applied to an object?

  • The object can compress, stretch, or bend.
  • This is most noticeable in springs.
  • Other objects like balls or phones are less elastic.
• What is the difference between elastic and inelastic deformation?

  Elastic deformation returns to original shape, while inelastic deformation does not
• What is the definition of extension in the context of springs?

  Extension is the increasing length of a spring when it is stretched
• How does the weight of a mass affect a spring's length?

  The weight pulls on the spring, increasing its length
• What role does the solid support play when a mass is added to a spring?

  The solid support exerts an equal but opposite force upwards
• How can we express the relationship between force and extension mathematically?

  As $f \propto e$, where $f$ is force and $e$ is extension
• What does the spring constant $k$ indicate?


  It indicates how many newtons are needed to stretch the spring by one meter
• What is the equation that relates force, spring constant, and extension?

  $f =$$ke$, where $k$ is the spring constant
• What does a higher spring constant indicate about a material?

  It indicates that the material is stiffer and requires more force to stretch
• What is the relationship between force and extension as shown in a graph?

  • As force increases, extension increases.
  • The graph is a straight line passing through the origin.
  • This indicates direct proportionality.
• What is the elastic limit in the context of Hooke's Law?

  It is the point beyond which Hooke's Law no longer applies
• What happens to an object that exceeds its elastic limit?

  It may not return to its original shape and becomes inelastically deformed