Question

slope on different surfaces such as a bedsheet, a blanket, a newspaper and a tile.
Create a slope by arranging books as shown. Roll a marble from the same spot on the
Activity
Note the distance travelled by the marble in each case. For every surface, take at least
five readings
. Note them in the table and calculate the average distance travelled by
the marble for each surface.
Find out which surface produces the least friction.




please complete the table
Does a smooth surface produce less friction?
Does a rough surface like that of a blanket produce more friction?​

Answer 1

Answer:

a) the smooth book's inclined posture lessens the friction hence increasing speed of rolling ball.

b) book produces most less friction

c) the rough surface like the blanket produces more friction because of the following :

• No inclination

• Not smooth