Question

When an object is thrown up, its potential energy ______ and its kinetic energy ______ till it reaches the highest point.

• A. increases
• B. decreases

Answer 1

1. When an object is thrown up, its height from the ground increases, hence its potential energy increases.
2. As the velocity decreases while going upward because the acceleration due to gravity acts in a downward direction therefore its kinetic energy decreases.

Hence, When an object is thrown up, its potential energy increases and its kinetic energy decreases till it reaches the highest point.