Bobby hangs two inflated balloons from 2-meter strings so that they touch. He then holds the balloons apart and rubs each balloon 5 times with animal fur. He then releases the balloons. The balloons now hang a small distance apart from one another: The next step in Bobby's procedure is to touch the balloons with a metal rod and allow them to settle, and then to rub them 10 times with animal fur. Which result should he expect, and why? (1 point) Responses The balloons will hang at the same elevation, because electrical repulsion is an unvarying phenomenon which results from the existence of charge and not its quantity. The balloons will hang at the same elevation, because electrical repulsion is an unvarying phenomenon which results from the existence of charge and not its quantity. The balloons will hang at a greater elevation, because they will have greater charges so the force of electrical repulsion between them will be greater. The balloons will hang at a greater elevation, because they will have greater charges so the force of electrical repulsion between them will be greater. The balloons will hang at a smaller elevation, because more thoroughly rubbing them will more completely remove their charges, reducing the electrical repulsion between them. The balloons will hang at a smaller elevation, because more thoroughly rubbing them will more completely remove their charges, reducing the electrical repulsion between them. The balloons will hang straight down or more closely together, because a larger number of rubs with fur will give them opposite rather than like electrical charges The balloons will hang straight down or more closely together, because a larger number of rubs with fur will give them opposite rather than like electrical charges Skip to navigation
The correct answer is: The balloons will hang at a greater elevation, because they will have greater charges so the force of electrical repulsion between them will be greater.
Rubbing the balloons with animal fur transfers charge to them, resulting in them becoming charged. Like charges repel each other, so the balloons will hang at a greater elevation when they are charged. The more thoroughly the balloons are rubbed, the greater the charge they will have, leading to a stronger force of repulsion and a greater distance between them.
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The correct answer is: The balloons will hang at a smaller elevation, because more thoroughly rubbing them will more completely remove their charges, reducing the electrical repulsion between them.
When the balloons are rubbed with animal fur, they acquire opposite charges. The force of electrical repulsion between them causes them to hang apart. However, when the balloons are touched with a metal rod and allowed to settle, this process redistributes the charges and reduces their magnitude. As a result, the force of repulsion between the balloons decreases, causing them to hang at a smaller elevation or closer to each other.