Angelika Tessmann
Objects in our world varies in shape and sizes. Some of these objects are smaller and most probably lighter than bigger and heavier objects. For an object to be moved force must be applied. This force may cause the object to move horizontally, vertically, or stay where it is (because of gravitational pull). The speed of the objects movement may depend on its size and weight, the heavier the object the more force it may take thus making it move slower. If a person is the one to apply the force on the object he/she may also affect the speed depending on their strength.
Airplanes for example are capable of flying because of its engine and propellers. These items exert force that pushes the plane forward/backward and eventually helping it to fly. Smaller and lighter objects don't need as much force as an airplane would so a push or a pull from a person would be enough to move it.
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