Question

which force changes the shape of an object​

Answer 1

An external force may cause a change in the state of motion, size and shape of an object. The force may cause a change in the internal arrangement of molecules making up the object and depending upon the magnitude of the force, the size or shape of the object may change.

Answer 2

When a force acts on an object, the object may change shape by bending, stretching or compressing - or a combination of all three shape changes.