Class 8, NCERT (CBSE) Science
Chapter 12, FRICTION
Additional CBSE Hot Questions
Question.1: What are the factors of friction?
Question.2: Can we eliminate friction completely?
Question.3: What causes chalk to write on the black-board?
Question.4: How does the nature of surface effect friction?
Question.5: It is easy to move an object on a sliding surface (inclined surface) than on a plane surface. Why?
Question.6: Why is it difficult to move an object from its static position?
Question.7: Why friction is called a necessary evil ?
Question.8: Why do we need to decrease friction?
Question.9: Explain the different types of friction.
Further study on this chapter