Physics - Static electricity
test questions and answers
What do electrostatic forces do to each other?
two positives will repel each other, as will two
negatives but a negative and a positive will be
attracted
How are electric fields shown?
With arrows pointing inwards or outwards
depending if the particle attracts or repels a
proton
How does the sticky balloon experiment work?
Rubbing the balloon on your shirt transfers
electrons to it which gives the balloon a negative
charge. When placed near the balloon, the free
electrons in the wall are repelled by the balloon
which leaves a positive charge on the wall by the
balloon, making the balloon stick
Why does your hair stand up when you touch a Van
de Graaf generator?
The belt within the Van de Graaf generator strips
electrons from the dome which positively charges
the dome. The electrons in the person then repel
each other as their electric fields interact, causing
them to spread out over all objects in contact,
including the dome. This leaves an overall deficit of
electrons in the person. This causes each strand of
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BRAINBOOSTERS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.