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Course: AP PHYSICS 1
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AP PHYSICS 1

1. Kinematics

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2. Force and Translational Dynamics

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3. Work, Energy, and Power

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4. Linear Momentum

0/29

5. Torque and Rotational Dynamics

0/37

6. Energy and Momentum of Rotating Systems

0/27

7. Oscillations

0/21

8. Fluids

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Quiz

2.5.5 Gravitational Field Strength Equation – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The mass of the falling object in g = GM/r2 is:
Not present
M
G
2.
A planet has the same mass as Earth but half the radius. Its surface g is:
g/2
4g
g/4
2g
3.
A moon has g = 1.6 N/kg and radius 1.7 × 106 m. Its mass is closest to:
7 × 1020 kg
2 × 1024 kg
7 × 1022 kg
1 × 1025 kg
4.
A graph of g against r (outside a planet) is:
A straight line
A parabola opening upward
Constant
A decreasing inverse-square curve
5.
A planet has three times Earth's mass and the same radius. Its surface field strength is about:
3.3 N/kg
29 N/kg
9.8 N/kg
88 N/kg
6.
At 3R from the center of a planet, with surface field g0, the field is:
g0/3
g0/6
3 g0
g0/9
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Part of 2. Force and Translational Dynamics — see every lesson and quiz in this unit.
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