| 1 |
_____________ can neither be created nor be destroyed. |
- A. Light
- B. Force
- C. Energy
- D. Weight
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| 2 |
Rate of change of momentum is equal to: |
- A. Mass
- B. Torque
- C. Weight
- D. Force
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| 3 |
Acceleration is produced by 20 N force it is due to: |
- A. Inertia
- B. Force
- C. Momentum
- D. None
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| 4 |
____________ deals with temperature . |
- A. Bio physics
- B. Geophysics
- C. Thermo physics
- D. Plasma physics
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| 5 |
Celsius temperature is converted into Fahrenheit temperature using the formula |
- A. F = 1.8 C + 32
- B. F = 1.8 C - 32
- C. F = 1.4 C + 32
- D. F = 1.4C - 32
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| 6 |
The work done in lifting a brick of mass 2 kg through a height of 5 m above ground will be: |
- A. 2.5 J
- B. 10 J
- C. 50 J
- D. 100 J
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| 7 |
The unit of electric charge is |
- A. Ampare
- B. Joule
- C. Coulomb
- D. Volt
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| 8 |
Bimetallic strip works on the principle of |
- A. expansion of metals
- B. contraction of metals
- C. both (A) and (B)
- D. unequal expansion of metals
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| 9 |
The mathematical formula of thermal conductivity is |
- A. k =Q/t x L/A (T1 - T2)
- B. k =Q/t x L/A (T1 + T2)
- C. k =t/Q x L/A (T1 - T2)
- D. k =2Q/t x L/A (T1 + T2)
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| 10 |
As we go up the density of air in the atmosphere: |
- A. Decreases
- B. Increases
- C. Remain constnat
- D. None of these
|