8 months is a ball park. Try not to be too literal about developmental milestones. people vary and that is the only thing that is normal. Joymaker RN
When we rub two objects together then heat energy is generated.
Examples of two objects that rub together include rubbing a balloon against fabric to create static electricity or rubbing two sticks together to start a fire.
Gain or lose
A bang typically results from two sounds: the rapid compression and release of air, often caused by an explosive force, and the sharp impact noise produced when two objects collide with great force. In the case of a gunshot, for example, the initial explosive sound from the gunpowder igniting creates the bang, while the bullet breaking the sound barrier adds a secondary sonic boom. Together, these sounds create the characteristic sharp noise we associate with a bang.
It is called interlocking, where two objects become entwined or stuck together after a collision.
gravity will pull two objects together
When two objects are rubbed together, friction is created. Friction is the force that resists the motion between two surfaces in contact. Rubbing two objects together can generate heat due to the friction produced between them.
Friction is the resistance to motion that occurs when two objects rub together. It is caused by the interactions between the surfaces of the objects, which create a force that opposes the motion.
If you rub two identically charged objects together, they will repel each other due to like charges. The objects will not stick together and may even push each other away.
At one year old, a child typically begins to show fine motor skills by using pincer grasp to pick up small objects, stack one or two blocks, bang objects together, and start to feed themselves with their fingers. They may also start to scribble with crayons or markers.
Gravity pulls all objects that have mass together.
When two objects rub together, the force of friction is generated due to the molecules on the surfaces interacting with each other. This force opposes the motion between the two objects and can result in heating, wear, or slowing down of the objects. The amount of friction depends on factors like the roughness of the surfaces and the force pressing them together.