PDF chapter test TRY NOW
Make an inclined plane on a smooth floor, or on a table. You may use a wooden board supported by bricks, or books. Put a mark with a pen at any point A on the inclined plane. Now let a pencil cell move down from this point. How far does it move on the table before coming to rest? Note down the distance. Now spread a piece of cloth FRICTION. Surface irregularities over the table. Make sure that there are no wrinkles in the cloth. Try the activity again
The pencil cell covers different distances on different surfaces
Repeat this activity by spreading a thin layer of sand over the table. Maintain the same slope throughout the activity.
b. As sand offers the most friction, the distance covered by a of it is the shortest.
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