| 1 |
Which is unitless quantity: |
- A. Mass
- B. Force
- C. Inertia
- D. Momentum
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| 2 |
A ball of mass 1 kg moving wih velocity 2 ms<sup>-1</sup> its momentum will be; |
- A. 1 Ns
- B. 2 Ns
- C. 0.5 Ns
- D. 4 Ns
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| 3 |
Acceleration is produced by 20 N force it is due to: |
- A. Inertia
- B. Force
- C. Momentum
- D. None
|
| 4 |
Coefficient of friction between tyre and dry road is. |
- A. 0.6
- B. 1
- C. 0.05
- D. 0.2
|
| 5 |
A string is stretched by two equal and opposite forces 10 N each. The tension in the string is |
- A. Zero
- B. 5N
- C. 10N
- D. 20N
|
| 6 |
A mass of a body: |
- A. Decreases when accelerated
- B. Increases when accelerated
- C. Decreases when moving with velocity
- D. None of the above
|
| 7 |
Mass is measured by: |
- A. Spring balance
- B. Measuring cylinder
- C. Physical Balance
- D. None of these
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| 8 |
The formula of momentum is: |
- A. P=Fa
- B. P=mv
- C. F=ma
- D. F=mg
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| 9 |
The formula for centripetal force is: |
- A. Fc = mv2
- B. Fc = mr2
- C. Fc = mv2 / r
- D. Fc = m/v
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| 10 |
When a horse pulls a cart , the action is on the : |
- A. Cart
- B. Earth
- C. Man
- D. Earth & cart
|