If the rock is in a river it gets smoothed.
Those would be the forces of gravity and self weight as well as in-situ stresses which may cause compression, tension or shear.
The force that changes a rock's shape or volume is called stress. This can occur due to factors such as compression, tension, or shear forces acting on the rock.
Stress
The force that changes the shape and volume of rocks is called deformation. This can occur due to stress from tectonic forces, such as compression, tension, or shearing, causing rocks to bend, break, or fold.
all of the forces
pressure
The force that acts on rock to change its shape or volume is called stress. Stress can be caused by factors such as tectonic plate movement, pressure from surrounding rocks, or even human activities like mining. This stress can lead to the deformation or fracturing of rocks over time.
The process in which rocks change shape is called deformation. During deformation, rocks undergo changes in shape, volume, or orientation in response to stress. This can result in the formation of folds, faults, and other structural features in rocks.
SHAPE
Yes, rocks can change shape and volume under stress through processes like deformation, fracturing, and recrystallization. Over time, these changes can lead to the formation of new rock structures and features.
The force which changes the dimension of the object such as length, volume or which changes the shape is known as deforming force
A gas can change shape but it doesn't change volume, a liquid also changes shape but doesn't change volume.
A compressional force causes an object to decrease in volume or become compressed. It can lead to changes in the shape, structure, or density of the object as a result of the applied force.