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- 1. Multiple Choice
'The orbit of a planet is an ellipse with the Sun at one of the foci" is Kepler's
First law
Second law
Third Law
- 2. Multiple Choice
The square of period of revolution around the Sun is _____ to the cube of mean distance of a planet from the Sun
Directly proportional
Indirectly proportional
- 3. Multiple Choice
Constant of proportionality is
g
G
- 4. Multiple Choice
The SI unit of mass is
kg
g
- 5. Multiple Choice
The value of 'g' ____ if we go inside the Earth
changes
remains the same
- 6. Multiple Choice
On the surface of the Earth, the escape velocity is about
11.2 km/s
12.1 km/s
- 7. Multiple Choice
The force of gravity is ____ to the square of distance
Inversely proportional
Directly proportional
- 8. Multiple Choice
Even if we go to another planet ___ remains the same
weight
mass
- 9. Multiple Choice
Mass is a _____ quantity
Scalar
Vector
- 10. Multiple Choice
F=
mg
ag
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