P.3.7.2.3 Gravitational Potential
Assessment
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Stanton Wertjes
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Physics
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11th Grade
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25 plays
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Hard
Student preview
28 questions
Show answers
1.
Multiple Choice
The graph shows how the gravitational potential varies with distance between two planets, K and L, that have the same radius.
Which statement is correct?
The mass of L is greater than the mass of K.
The gravitational field strength at the surface of L is greater than that at the surface of K.
The escape velocity from planet L is greater than that from planet K.
More work must be done to move a mass of 1 kg from the surface of K to a distant point, than 1 kg from the surface of L.
2.
Multiple Choice
The diagram shows equipotential lines near a group of asteroids. Which arrow shows the direction of the gravitational field at X?
↑
↓
←
→
3.
Multiple Choice
Planet N has a gravitational potential –V at its surface. Planet M has double the density and double the radius of planet N. Both planets are spherical and have uniform density.
What is the gravitational potential at the surface of planet M?
–16V
–8V
–4V
–0.2V
4.
Multiple Choice
The radius of a planet is R. The gravitational potential at the surface of the planet due to its mass is −4000 J kg−1.
What is the gravitational potential at a distance 2R from the centre of the planet?
−1000 J kg−1
−2000 J kg−1
−4000 J kg−1
−8000 J kg−1
5.
Multiple Choice
X and Y are two stars of equal mass M. The distance between their centres is d.
What is the gravitational potential at the mid-point P between them?
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