Question

What happens to the kinetic energy of a ball as it reaches its maximum height when thrown ?

The kinetic energy reaches its maximum amount
The kinetic energy reaches its minimum amount
The kinetic energy is converted to potential energy
b and c

Answer 1

The answer is "b and c". Kinetic energy is the energy of movement, and potential energy is literally the potential energy something has (as the balls height further increases, it's kinetic energy is converted to potential).