एक विद्युत बल्ब में, विद्युत ऊर्जा मुख्य रूप से _________ ऊर्जा में परिवर्तित होती है।

How is work defined in physics?

It is easier to roll a stone uphill on a sloped road than to lift it vertically upward because:

The gravitational potential energy of an object at a height is the work done to lift it from the ground to that height _____________.