Lubrication to reduce friction. To increase friction step on the brakes.
by slaiding friction increase
We can increase friction by making the surfaces of the object rough. We can also increase friction by pressing the two objects more strongly.
No, sand does not reduce friction but increase friction.
We Increase Friction when we are stopping a car, bike or when slowing down to a way up.
Decrease friction .
no
INCREASE
Wax, due to it filling the pores that cause friction will reduce friction.
You can describes the friction
Tiddlywinks
rub harder