| 1 |
The first man who gave the idea of gravity: |
- A. Hero
- B. Einstein
- C. Newton
- D. Faraday
|
| 2 |
S.I unit of G is: |
- A. Nm<sup>-2</sup> kg<sup>2</sup>
- B. Nm<sup>-2</sup>Kg<sup>-2</sup>
- C. Nm<sup>2</sup>kg<sup>-2</sup>
- D. Nm<sup>2</sup>kg<sup>-3</sup>
|
| 3 |
A satellite revolving around very close to Earth has speed nearly: |
- A. 8 kms<sup>-1</sup>
- B. 5 kms<sup>-1</sup>
- C. 10 kms<sup>-1</sup>
- D. 100 kms<sup>-1</sup>
|
| 4 |
The value of g on moon's surface is 1.6 ms<sup>-2</sup>. What will be the weight of a a 100 kg body on the surface of the moon? |
- A. 100 N
- B. 160 N
- C. 1000 N
- D. 1600 N
|
| 5 |
Gravitational force is a |
- A. Contacted force
- B. Non-contact force
- C. Electrical force
- D. Charging force
|
| 6 |
S.I unit of gravitational field strength is: |
- A. Nkg
- B. Nkg<sup>-1</sup>
- C. Nkg<sup>-2</sup>
- D. Nkg<sup>-3</sup>
|
| 7 |
the value of gravitational field strength near the earth is ________ Nkg<sup>-1</sup>. |
- A. 1.62
- B. 100
- C. 10
- D. 160
|
| 8 |
The gravitational field exist _________ the earth. |
- A. Upward
- B. All aorund
- C. Downward
- D. One direction
|
| 9 |
The radius R of the earth is: |
- A. 6 x 10<sup>18 </sup>m
- B. 6.4 x 10<sup>6</sup>m
- C. 6.4 x 10<sup>8</sup>m
- D. 6.4 x 10<sup>12</sup>m
|
| 10 |
The orbital speed of a low orbit satellite is |
- A. Zero
- B. 8 ms-1
- C. 800 ms-1
- D. 8000 ms-1
|
