"Cooking utensils are provided with wooden handles". Why ?

Why is a tea kettle provided with an ebonite handle ?

The front wall of a drawer in a cabinet is a provider with two symmetrical handles. The distance between the handles is l and the length (i.e. depth) of the drawer is a. The maximum value of the coefficient of friction between drawer and cabinet, for which drawer can be pulled out by applying a force on one handle perpendicular to the face of the drawer is : (Neglect the weight of the drawer)

Stainless steel cooking pans are preferred with an extra copper bottom. Why?

Aluminium utensils are .... by food acids.

Why are musical instruments provided with more than one string?

A: Material used for making cooking utensils is the one having high specific heat and high conductivity. R: Low conductivity means high specific heat.

The stone of a hand flour grinder is provided with a handle near its rim. Give reason.

A jack screw is provided with a long arm. Explain why?

The bottom of a cooking utensil is painted black. Give the reason.

A spanner (or wrench) has a long handle. Why?