Fields

In this section we look at gravity and electric fields.  Both of these are fundamental forces.

 

Gravity fields are responsible for pulling material together to make stars, planets, and galaxies.  Newton's Laws of Gravity are used nowadays for management of deep space probes.  They are valid, even though they were written down three hundred years ago.  Circular motion rules can be used to explain the motion of satellites and planets.  We will look at how Kepler III can be used to predict the way a satellite orbits.

 

Electric Fields explain how atoms and molecules can bond.  They are also used in a range of analytical instruments.  We will consider how charged particles move in electric fields.

1. Gravity Fields

Tutorial 1

Force and Gravity Fields

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Tutorial 2

Energy in Gravity Fields

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Tutorial 3

Satellite Motion

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2. Electric Fields

Tutorial 4

Force and Electric Fields

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Tutorial 5

Energy and Electric Fields

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AS Data Sheet (.pdf file).  Click on the PDF icon.  Download it, print it off, and use it whenever you do a test. 

It will also make very good lavatory reading.  Knowing where a formula can be found will help you no end in the exam.

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