Question

Write True or False.
(a) Grooves are made on the underside of the shoes to make their surfaces
rough.
b) Lubricating a surface increases friction.
(c) Friction causes wastage of energy.
d) Use of wheels and ball bearings increases friction.​

Answer 1

Answer:

A) TRUE

B)FALSE

C)TRUE

D)FALSE

Answer 2

Answer:

1-t 2-f 3-t 4-f true and false okay