| 1 |
Mass is measured by: |
- A. Spring balance
- B. Measuring cylinder
- C. Physical Balance
- D. None of these
|
| 2 |
When the cyclist stop pedalling, bicycle stops due to : |
- A. Friction
- B. Momentum
- C. Weight
- D. Mass
|
| 3 |
The formula for centripetal force is: |
- A. Fc = mv2
- B. Fc = mr2
- C. Fc = mv2 / r
- D. Fc = m/v
|
| 4 |
The product of mass and _______ is called momentum; |
- A. Velocity
- B. Force
- C. Acceleration
- D. None
|
| 5 |
Two bodies of masses m<sub>1</sub> and m<sub>1</sub> attached to the ends of an inextensible string passing over a frictionless pulley such that both move vertically. The acceleration of the bodies is: |
- A. m1 x m<sub>2</sub> / m<sub>1</sub> + m<sub>2</sub> g
- B. m<sub>1</sub> - m<sub>2</sub> / m<sub>1</sub> + m<sub>2</sub> g
- C. m<sub>1</sub> + m<sub>2</sub> / m<sub>1</sub> - m<sub>3</sub> g
- D. None of these
|
| 6 |
Which of the following is the unit of momentum? |
- A. Nm
- B. kgms<sup>-2</sup>
- C. Ns
- D. Ns<sup>-1</sup>
|
| 7 |
Sliding friction can be converted into rolling friction by using |
- A. Levers
- B. Wedges
- C. Ball bearings
- D. Pulleys
|
| 8 |
Centripetal force always acts _________ to the motion: |
- A. Opposite
- B. Parallel
- C. Perpendicular
- D. Upward
|
| 9 |
All divers need to wear seat belt because of effect of: |
- A. Inertia
- B. Gravity
- C. Car force
- D. Nil
|
| 10 |
Formula of weight is derived from which law? |
- A. First law
- B. Second law
- C. Third law
- D. Law of conservation of momentum
|
