Topic 10: Fields
Topic 10 class notes
Assessment Statements:
10.1: Describing Fields
9.2 Gravitational field, potential and energy
9.2.1
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Define gravitational potential and gravitational potential energy
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9.2.2
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State and apply the expression for gravitational potential due to a point mass
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9.2.3
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State and apply the formula relating gravitational field strength to gravitational potential gradient
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9.2.4
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Determine the potential due to one or more point masses
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9.2.5
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Describe and sketch the pattern of equipotential surfaces due to one and two point masses
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9.2.6
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State the relation between equipotential surfaces and gravitational field lines
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9.2.7
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Explain the concept of escape speed from a planet
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9.2.8
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Derive an expression for the escape speed of an object from the surface of a planet
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9.2.9
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Solve problems involving gravitational potential energy and gravitational potential
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9.3 Electric field, potential and energy
9.3.1
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Define electric potential and electric potential energy
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9.3.2
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State and apply the expression for electric potential due to a point charge
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9.3.3
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State and apply the formula relating electric field strength to electric potential gradient.
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9.3.4
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Determine the potential due to one or more point charges
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9.3.5
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Describe and sketch the pattern of equipotential surfaces due to one and two point charges
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9.3.6
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State the relation between equipotential surfaces and electric field lines.
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9.3.7
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Solve problems involving electric potential energy and electric potential.
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9.4 Orbital Motion
9.4.1
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State that gravitation provides the centripetal force for circular orbital motion
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9.4.2
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Derive Kepler's third law.
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9.4.3
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Derive expressions for the kinetic energy, potential energy, and total energy of an orbiting satellite
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9.4.4
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Sketch graphs showing the variation with orbital radius of the kinetic energy, gravitational potential energy, and total energy of a satellite
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9.4.5
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Discuss the concept of "weightlessness" in orbital motion, in free fall, and in deep space
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9.4.6
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Solve problems involving orbital motion
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