Friction Between Two Surfaces
12 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the term used to describe the extra force required when two surfaces rub against each other?

  • Force of wear
  • Force of lubrication
  • Force of separation
  • Force of friction (correct)

    • How can the friction between two moving surfaces be considerably reduced?

  • By applying more pressure on the surfaces
  • By using a lubricant to separate the surfaces (correct)
  • By reducing the speed of the moving surfaces
  • By increasing the weight on the surfaces

    • What happens to high spots (or hills) on surfaces when they rub against each other?

  • They break off (correct)
  • They increase in size
  • They become smoother
  • They form corrosion barrier films

    • How can a lubricant help reduce wear between two surfaces?

    <p>By preventing the high spots from coming into contact</p> Signup and view all the answers

    What is one role of lubricants in temperature control?

    <p>To absorb and carry away heat</p> Signup and view all the answers

    In what scenario can lubricants serve as a cushion to absorb shock?

    <p>When surfaces impact each other</p> Signup and view all the answers

    What is friction between two surfaces defined as?

    <p>Resistance to motion</p> Signup and view all the answers

    What is the primary reason for the resistance to relative motion between two smoothly ground metal surfaces?

    <p>The interlocking of surface irregularities</p> Signup and view all the answers

    What is the purpose of lubrication in relation to surface irregularities?

    <p>To separate surfaces with interlocking surface irregularities</p> Signup and view all the answers

    What are the two most important purposes of lubricants?

    <p>Friction reduction and wear reduction</p> Signup and view all the answers

    What happens when surfaces with irregularities rub together?

    <p>They cling or weld together</p> Signup and view all the answers

    What is not a purpose of lubricants?

    <p>Acceleration of motion</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser