Special firces
No...
No, electric force does not require objects to touch in order to act on each other. Objects with electric charge can exert attractive or repulsive forces on each other even when they are not in physical contact.
Touching forces, also known as contact forces, are interactions that occur when two objects physically touch each other. They can include forces like friction, normal force, tension, and air resistance. These forces are important in understanding how objects behave and move in the physical world.
Magnetic and gravitational forces are non-contact forces, meaning they can act on objects from a distance without physical contact between the objects. Magnetism can attract or repel objects without direct touch, while gravity can pull objects towards each other even without touching.
The force that stops physical objects from passing through each other is the electromagnetic force. Specifically, it is the repulsion that electrons have for other electrons. When two objects touch, the electrons in the outer atomic shells are really close to each other, much closer than they are to the protons in the center of atoms which attract them, so the normally neutral atom suddenly acts as a highly negatively charged object.
Objects exert forces on each other through four fundamental interactions: gravitational, electromagnetic, weak nuclear, and strong nuclear forces. These forces can attract or repel objects, depending on their nature and distance. The strength and direction of the forces are determined by the masses and charges of the objects involved.
Electric forces can cause objects to either repel or attract each other. Objects with like charges (positive-positive or negative-negative) will repel each other, while objects with opposite charges (positive-negative) will attract each other.
The analogy to repel is attract. Just like repelling forces push objects away from each other, attracting forces pull objects towards each other.
Force
Contact forces include friction, normal force, tension, and applied force. These forces arise when two objects are touching and directly exerting a force on each other.
No, atoms do not physically touch each other because they are surrounded by electron clouds that repel each other due to electromagnetic forces.
Two forces that can sometimes pull and sometimes push are magnetic forces and gravitational forces. These forces can attract objects towards each other (pull) or repel them away from each other (push) depending on the orientation and properties of the objects involved.