1 
The first man who came up with the idea of gravity was? 
 A. Issac Newton
 B. Einstein
 C. Faraday
 D. J,S Joseph

2 
Moon is a _____________ satellite. 
 A. Natural
 B. Artificial
 C. Not manmade
 D. Nil

3 
Near the earth surface the gravitational field strength is: 
 A. 1 N kg<sup>1</sup>
 B. 10 N kg<sup>1</sup>
 C. 100 N kg<sup>1</sup>
 D. 101 N kg<sup>1</sup>

4 
The orbital speed of a low orbit satellite is: 
 A. Zero
 B. 8 ms<sup>1</sup>
 C. 800 ms<sup>1</sup>
 D. 8000 ms<sup>1</sup>

5 
The value of g at a height one Earth's radius above the surface of the earth is: 
 A. 2g
 B. 1/2 g
 C. 1/3 g
 D. 1/4 g

6 
The mass of Earth is 
 A. 6 x 1018 kg
 B. 6 x 1020 kg
 C. 6 x 1022 kg
 D. 6 x 1024 kg

7 
The speed geostationary satellite with respect to earth is: 
 A. 8.33 kms<sup>1</sup>
 B. 3.87 ms<sup>1</sup>
 C. 32 ms<sup>1</sup>
 D. Zero

8 
At the surface of the earth value of 'g' is measured by using formula: 
 A. g=GMe/R
 B. g = GMe/R<sup>2</sup>
 C. g = 2GMe/R<sup>2</sup>
 D. g = GMe/2 R

9 
The height of geostationary satellites with respect to Earth is 
 A. 36,300 km
 B. 40,300 km
 C. 30,300 km
 D. 42,300 km

10 
In SI units, the value of gravitational constant 'G' is 
 A. 6.673 x 109 Nm2 kg2
 B. 6.673 x 1010 Nm2 kg2
 C. 6.673 x 1011 Nm2 kg2
 D. 6.673 x 1012 Nm2 kg2
