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5 cards from this section. Quick, good the night before a test.
What does Newton's Law of Universal Gravitation express?
Think about the formula F = G(m₁m₂/r²).
Define gravitational potential in your own words.
Consider the significance of 'infinity' in this context.
What is the gravitational force between two objects directly proportional to?
Look at the formula F = G(m₁m₂/r²).
True or False: Gravitational potential is always positive.
Reflect on the concept of work done in a gravity field.
If Earth has a mass of 5.972 × 10²⁴ kg and a radius of 6.371 × 10⁶ m, compute the gravitational force between Earth and an object of mass 1 kg at the surface.
Don’t forget to square the radius!
Define the concept of gravitational field strength and derive its formula from Newton’s law.
What's happening to m when divided?
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