Remember, the negative charge of an electron is the same as the positive electrical charge of the much larger in size proton.
This is called an electrostatic field. Those particles repelling one another are said to have like charges. Because charged objects interact with their surroundings, an observed interaction provides possible evidence that an object is charged. In fact, on a dry winter day the process of charging the metal electroscope with the charged insulator often occurs while the insulator is some distance away.
Protons Protons are much larger and heavier than electrons. Despite the fact that the two surfaces were in contact, charging by contact or conduction did not occur. Protons are much larger and heavier than electrons. Any charged object - plastic, rubber, or aluminum - will exert an attractive force upon a neutral object.
Why is an electron negatively charged, and what is the difference between negative and positive charges? Flickr Physics Photo. The total amount of charge and the charge distribution of an object determine its behavior in electromagnetic fields. Electrons and protons don't actually do what is best for themselves, but must be more social-minded.
On two occasions, the following charge interactions between balloons A, B and C are observed. The charge object maintains the same type of charge that it originally had.
Student Extras. For example, if you could take each balloon and individually bring them near some neutral bits of paper, you could test to see if each individual balloon is charged or neutral.
Object A exerts a rightward push upon Object B. E Protons are never transferred in electrostatic activities.
When finished, both objects were negatively charged. For instance, if a charged balloon is held above neutral bits of paper, the force of attraction for the paper bits will be strong enough to overwhelm the downward force of gravity and raise the bits of paper off the table.
It seems that we don't have the "gravity-is-the-bending-of-space-time" explanation for charge yet.
Where did this third charge interaction come from? In the case of charging an object with a charged insulator, the contact is not essential.
Since the electron is much smaller and lighter than a proton, when they are attracted to each other due to their unlike charges, the electron usually does most of the moving.