Because all the objects have a natural frequency
Different objects make different sounds when dropped on a floor because of their material composition, shape, and size. These characteristics determine the object's density, elasticity, and surface area, which all influence how the object interacts with the floor upon impact, creating unique sound frequencies.
Both balls would have the same acceleration due to gravity, regardless of the height from which they were dropped. This is because the acceleration due to gravity is constant and does not depend on the initial position of the objects.
The hammer would hit the floor first because it is more dense than the feather. When objects are dropped in a vacuum where air resistance is eliminated, gravity pulls them down with the same acceleration regardless of their mass or density.
"The painter's brush dropped to the floor." (The painter is singular, the brush is singular.)"The painters' brush dropped to the floor." (The painters is plural, the brush is still singular.)"The painters' brushes dropped to the floor." (The painters is plural, the brushes is plural.)
The ball is on the floor because it was dropped or fell down.
There are many factors that can affect the time for these objects to drop. The height at which each object is dropped is a factor since the height is proportional to time. if the height at which these objects are dropped are the same, then the time for them to drop to the floor is the same. Since the acceleration due to gravity at sea level is 9.81 m/s^2 for all objects no matter the mass, both objects will accelerate at the same rate which means they will reach the floor at the same rate. All in all, both the pencil and the penny will hit the ground at the same time.
extraneous
"Dropped." When looking for a verb, look for the action.
Both balls will hit the floor at the same time, regardless of their size or shape, as long as they have the same mass and are dropped from the same height in a vacuum. This is due to the principle of gravitational acceleration acting equally on all objects, causing them to fall at the same rate of acceleration.
She dropped her pencil on the floor
That person is a litter-lout, who is littering by dropping rubbish on the floor.
I accidentally dropped the toy on the floor.