Physics Practice: Force and Pressure (Mock Test 2 - Intermediate)
1. The anatomical reason why a sharp needle penetrates skin easily while a blunt one doesn't is:
2. Which of the following describes the "Moment of Force"?
3. A force of $50\ \text{N}$ is applied perpendicular to a wrench at a distance of $0.2\ \text{m}$ from the nut. The moment of force is:
4. Why do foundation walls of high-rise buildings have a broader base?
5. Liquid pressure depends on the ________ of the liquid column.
6. If you apply a force of $20\ \text{N}$ on an area of $2\ \text{m}^2$, the pressure exerted is:
7. A "Torr" is a unit of pressure equivalent to:
8. In a stationary liquid, pressure at any two points at the same horizontal level is:
9. Which of the following will decrease the moment of force?
10. Why do deep-sea divers wear special pressurized suits?
11. Pascal's Law states that pressure applied to an enclosed fluid is:
12. The standard atmospheric pressure at sea level is approximately:
13. A longer handle is provided for a door or a screw jack because it:
14. What happens to atmospheric pressure as we go up to higher altitudes (mountains)?
15. The "Thrust" exerted by a body is equal to its:
16. Which liquid is used in a standard Barometer because of its high density?
17. A man standing on one foot exerts ________ pressure on the ground than when standing on both feet.
18. The S.I. unit of Moment of Force is:
19. If the density of a liquid is doubled, the pressure exerted by it at the same depth will:
20. Anti-clockwise moment is generally taken as ________ according to convention.
