Two identical isolated conducting spheres are picked for an experiment. only one of them is charged. if the spheres are now briefly brought into contact and then separated by a small distance, the two spheres would experience
a) a force of repulsion, because they are like-charged.
b) a force of attraction, because they are oppositely charged.
c) no force, because charges are not transferred by mere contact.
d) no force, because the distance separating the spheres needs to be large.

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.