Ball bearing is a device which usually converts:
(a) rolling friction into sliding friction
(b) static friction into sliding friction
(c) sliding friction into rolling friction
(d) rolling friction into static friction

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Solution

Answer: (c) sliding friction into rolling friction
Ball bearing is a device which is used to convert sliding friction into rolling friction because rolling friction is much lesser than sliding friction. Ball bearings reduce friction and facilitate easy movement.

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Similar questions

Which of the following statements is incorrect?
(a) static friction is greater than rolling friction
(b) sliding friction is less than rolling friction
(c) rolling friction is less than static friction
(d) static friction is greater than sliding friction

What is rolling friction? What is the need of converting sliding friction into rolling friction?

Out of sliding friction, static friction and rolling friction:
(a) which one is the smallest ?
(b) which one is the largest ?

Since rolling friction is less than sliding friction, sliding friction is replaced with rolling friction in most machines using ball bearings.

Q. Ball bearings use rolling friction instead of sliding friction.

Ball bearing is a device which usually converts: (a) rolling friction into sliding friction (b) static friction into sliding friction (c) sliding friction into rolling friction (d) rolling friction into static friction

Answer: (c) sliding friction into rolling frictionBall bearing is a device which is used to convert sliding friction into rolling friction because rolling friction is much lesser than sliding friction. Ball bearings reduce friction and facilitate easy movement.

Ball bearing is a device which usually converts:
(a) rolling friction into sliding friction
(b) static friction into sliding friction
(c) sliding friction into rolling friction
(d) rolling friction into static friction

Answer: (c) sliding friction into rolling friction
Ball bearing is a device which is used to convert sliding friction into rolling friction because rolling friction is much lesser than sliding friction. Ball bearings reduce friction and facilitate easy movement.