Kinetic and potential energy are really interesting ideas in physics!

1. Kinetic Energy:

   • This is the energy that something has when it's moving.
   • Anything that’s in motion—like a car driving, a bird flying, or even a ball rolling—has kinetic energy.
   • The formula for kinetic energy is:
     $KE = \frac{1}{2}mv^2$
     where $m$ means mass (how heavy something is) and $v$ stands for velocity (how fast it’s going).

2. Potential Energy:

   • This is the energy that is stored based on where something is.
   • For example, a rock sitting at the top of a hill has gravitational potential energy because it could roll down.
   • The formula for potential energy is:
     $PE = mgh$
     where $m$ is mass, $g$ is gravity (the force that pulls things down), and $h$ is height (how high something is).

So, it all comes down to whether something is moving or if it has the ability to move!