Curriculum
Course: IB Physics HL
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Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

D.1.7 Gravitational Potential Gradient – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The gravitational field strength equals
minus the potential gradient
the potential
the area under the V–r graph
the potential multiplied by r
2.
The unit of potential gradient is equivalent to
J kg−1
N kg−1
N m
kg m s−1
3.
A V–r graph for a planet has a gradient which, as r increases,
increases
stays constant
decreases
becomes negative
4.
Between two points 2.0 × 105 m apart the potential changes by 1.0 × 106 J kg−1. The average field is
0.2 N kg−1
2.0 × 1011 N kg−1
50 N kg−1
5.0 N kg−1
5.
The area under a g–r graph between two radii represents
the change in field
the change in potential
the force
the mass
6.
Where a V–r graph is horizontal, the gravitational field strength is
maximum
equal to GM
zero
negative
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Part of Theme D — Fields — see every lesson and quiz in this unit.
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