100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary AQA AS/A Level Physics A* Revision Notes: Gravitational & Electric fields £4.76
Add to cart
Quickly navigate to
Preview
  2.  
  3. AQA
  4.  
  5. Physics
  6.  
  7. Unit 4 PHYA4 - Fields and Further Mechanics (7408)

Summary

Summary AQA AS/A Level Physics A* Revision Notes: Gravitational & Electric fields

 17 views  0 purchase
  • Institution
  • AQA

Achieve an A* in your A Level Physics exams with our expertly written notes on 'Electric and Gravitational Fields'. Created by a student who scored an A*, these notes are clear and easy to understand. Delve into the principles of electric fields and gravitational fields, exploring topics such as fi...

[Show more]

Preview 3 out of 23  pages

Document information

  • July 28, 2024
  • 23
  • 2023/2024
  • Summary

Subjects

Written for

All documents for this subject (27)

Seller

avatar-seller
stravia54

Content preview

3.7. Fields

Force field def.?
- a region in which a body experiences a non-contact force
- consists of vectors

~gravitational fields~

Define field lines?




Diff ways of creating a force field?
- by the interaction of masses → gravitational field
- by the interaction of static charges → electric field
- by the interaction of moving charges → electric field
Gravity def.?
- a universal attractive force acting between all matter
- its magnitude can be calculated using:




where G = gravitational constant and:




What does Newton’s law of gravitation assume?
~the grav. force between any two point objects is:




- say instead = proportional to the PRODUCT of their masses
⇒ hence the equation

,Equation of F being an inverse square law?




What does g stand for?
- gravitational field strength
‘g’ def.?



- g = F/m only applies to small masses placed in a gravitational field of a large mass →
otherwise:



How can Newton’s law of gravitation be used to determine g of a grav. field?
- the grav. field strength at any point in the field of a planet/any spherical mass
⇒ so for radial fields ONLY
- how to derive it:




(remember: r is radial distance from the CENTRE of the spherical mass)
Radial field def.?
- field lines are directed towards the centre of a sphere
→ the magnitude of g decreases with increasing radial distance away from the large body
Uniform field def.?
- g is same in magnitude and direction throughout the field

, Derive g inside a planet?

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

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 stravia54. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £4.76. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52510 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£4.76
  • (0)
Add to cart
Added