| 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 10-9 Nm2 kg-2
- B. 6.673 x 10-10 Nm2 kg-2
- C. 6.673 x 10-11 Nm2 kg-2
- D. 6.673 x 10-12 Nm2 kg-2
|