question_answer 1)

Fill in the blanks. (a) Friction opposes the ............. between the surfaces in contact with each other. (b) Friction depends on the ............. of surfaces. (c) Friction produces.............. . (d) Sprinkling of powder on the carom board.............. friction. (e) Sliding friction is.............. than the static friction.  

Answer:

(a) relative motion                          (b) nature (c) heat                                         (d) reduces (e) less.