Question

Explain why: (a) a pencil will write on paper but not on glass. (b) the handles of motor cycles are covered with a rubber sheet with spikes.

Answer 1

Answer:

a. there is friction on the paper

b.for grip

Explanation:

Answer 2

Answer:

a) Friction is required to write. The friction between the pencil and glass is not enough, and therefore, you cannot write on the glass.

b) Holding on to the handlebars, you realise your hands became sweaty, This increases friction and could cause your hands to slip. Therefore,the handlebars are covered in rubber sheets to increase the friction and prevent slipping.