Question

1. what is kinetic energy? 6. what is potential energy?

Explanation:

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and its velocity, with the formula $KE=\frac{1}{2}mv^{2}$, where $m$ is mass and $v$ is velocity.
Potential energy is stored energy. Gravitational potential energy, for example, is due to an object's height in a gravitational - field ($PE = mgh$, $m$ is mass, $g$ is gravitational acceleration, $h$ is height), and elastic potential energy is in a stretched or compressed elastic object.

Answer:

1. Kinetic energy is the energy of motion, calculated as $KE=\frac{1}{2}mv^{2}$.
2. Potential energy is stored energy, such as gravitational potential energy $PE = mgh$ or elastic potential energy.