First of all I apologize for the basic question.

When we throw a ball upwards, energy gets converted from us to kinetic energy which becomes potential energy and as the ball falls back down it becomes kinetic energy once again while falling down.

So I have 2 questions

1. What do we call the energy form that originates from us, i.e. that we convert into the kinetic energy of the ball in the first place

2. What are the main conversions of energy as the ball comes to a stop?

First of all I apologize for the basic question.

When we throw a ball upwards, energy gets converted from us to kinetic energy which becomes potential energy and as the ball falls back down it becomes kinetic energy once again while falling down.

So I have 2 questions

1. What do we call the energy form that originates from us, i.e. that we convert into the kinetic energy of the ball in the first place

2. What are the main conversions of energy as the ball comes to a stop?