Discussion
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- Question
Calculate the pressure (in Pa) if a thrust of 800 N is applied to an area of 16 m2.
Options- A. 128
- B. 100
- C. 64
- D. 50
- Correct Answer
- 50
- 1. Air expands when it _______________.
Options- A. is cooled
- B. is heated
- C. is under pressure
- D. becomes more humid Discuss
- 2. The slope of a DistanceTime graph shows ___________.
Options- A. acceleration
- B. momentum
- C. mass
- D. speed Discuss
- 3. Terminal velocity ________.
Options- A. first increases before decreasing
- B. is constant
- C. first decreases before increasing
- D. always keeps on increasing Discuss
- 4. Which of the following is not a vector quantity?
Options- A. Work
- B. Force
- C. Displacement
- D. Velocity Discuss
- 5. In science a push or pull of an object is called ________.
Options- A. Pick
- B. Lift
- C. Force
- D. Shut Discuss
- 6. The SI unit of acceleration is __________.
Options- A. ms-1
- B. ms-2
- C. ms2
- D. m/s Discuss
- 7. Warm air is ______.
Options- A. heavier than cold air hence warm air rises up
- B. lighter than cold air hence warm air moves down
- C. lighter than cold air hence warm air rises up
- D. heavier than cold air hence warm air moves down Discuss
- 8. Instrument for measuring work performed is called _________.
Options- A. Eudiometer
- B. Anemometer
- C. Hyetometer
- D. Ergometer Discuss
- 9. What is the unit of the physical quantity "Stress"?
Options- A. newton second
- B. steradian
- C. pascal
- D. joule Discuss
- 10. Light travels fastest in
Options- A. Nitrogen
- B. Air
- C. Steel
- D. Vacuum Discuss
Physics problems
Search Results
Correct Answer: is heated
Correct Answer: speed
Correct Answer: is constant
Correct Answer: Work
Correct Answer: Force
Correct Answer: ms-2
Correct Answer: lighter than cold air hence warm air rises up
Correct Answer: Ergometer
Correct Answer: pascal
Correct Answer: Vacuum
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