| 1 |
If the mass of moving body in a circle is doubled then centripetal force wil be: |
- A. Doubled
- B. Half
- C. 4 times
- D. Same
|
| 2 |
in isolated system the momentum after collision of two bodies. |
- A. Increase
- B. Constnat
- C. Decrease
- D. Zero
|
| 3 |
A sugar bag of 1 kg has a momentum 25 kg m/s than its velocity is : |
- A. v = 20 m/s
- B. v = 25 kg
- C. V = 25 m/s
- D. v = 25 kg/ms-1
|
| 4 |
Which of the following is unit of momentum? |
- A. Nm
- B. Kgms<sup>-2</sup>
- C. Ns
- D. Ns<sup>-1</sup>
|
| 5 |
Kgms<sup>-2</sup> is equal to: |
- A. Joule
- B. Mole
- C. Newton
- D. Watt
|
| 6 |
If no external force acting on a body then such system is called. |
- A. Ideal system
- B. Controlled system
- C. Isolated system
- D. None
|
| 7 |
All divers need to wear seat belt because of effect of: |
- A. Inertia
- B. Gravity
- C. Car force
- D. Nil
|
| 8 |
That force which produces an acceleration of one metre per second per second in a body of one kilogram mass is called |
- A. 1 joule
- B. 1 newton
- C. 1 watt
- D. 1 ampere
|
| 9 |
The machine which use unequal masses to find the value of "g" is ________ |
- A. Free fall apparatus
- B. Atwood machine
- C. Pulley
- D. None
|
| 10 |
If a 20 N wight of block hang with the string vertically then tension in string is: |
- A. 0 N
- B. 20 N
- C. 2 N
- D. 10 N
|
