Is everything made of something? What
about
energy, forces information?

yes, everything is made up of something whether it is matter, cells or energy. The notion of energy however is simple enough.

Explanation:

Energy cannot be created or destroyed. it is either transformed or transfered. force can be created by all forms of energy, potential, kinetic etc.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

prndulum needs thread, weight clock to time swings