| 1 |
The orbital speed of a low orbit satellite is: |
- A. Zeri
- B. 8 ms<sup>-1</sup>
- C. 800 ms<sup>-1</sup>
- D. 8000 ms<sup>-1</sup>
|
| 2 |
The velocity of geostationary satellites with respect to the Earth is: |
- A. Maximum
- B. Zero
- C. Minimum
- D. 100 ms<sup>-1</sup>
|
| 3 |
Earth's gravitational force of attraction vanishes at: |
- A. 6400 km
- B. Infinity
- C. 42300 km
- D. 1000 km
|
| 4 |
The orbital velocity of a satellite revolving at height 'h' above the surface of Earth is given by |
|
| 5 |
The first man who came up with the idea of gravity was? |
- A. Issac Newton
- B. Einstein
- C. Faraday
- D. J,S Joseph
|
| 6 |
Mass of earth is Me is : |
- A. Me = 6× 1024 kg
- B. 6× 1024 kg
- C. 7× 1024 kg
- D. 6× 1024 Mg
|
| 7 |
Weight of the body is__________ to the gravity force between body and earth: |
- A. Less than
- B. Greater than
- C. Equal
- D. Constant
|
| 8 |
Speed of the satellites of GPS around earth is: |
- A. 3.87 ms<sup>-1</sup>
- B. 387 kms<sup>-1</sup>
- C. 3.87 kms<sup>-1</sup>
- D. 38.7 kms<sup>-1</sup>
|
| 9 |
Law of Gravitation is consistence with: |
- A. 1st Law of motion
- B. 2nd Law of motion
- C. 3rd Law of motion
- D. Law of momentum
|
| 10 |
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
|
