Physics Practice: Force (Mock Test 5 - Ultimate Comprehensive)
1. A body is in static equilibrium when:
2. The moment of force is a vector quantity. Its direction is given by:
3. For a body to be stable, the vertical line drawn from its center of gravity must:
4. Centripetal force and Centrifugal force:
5. A uniform meter scale of mass $100 \text{ g}$ is balanced at $70 \text{ cm}$ mark when a weight $M$ is attached at $90 \text{ cm}$. The value of $M$ is:
6. The center of gravity of a solid circular cone of height $h$ is at a distance _______ from its vertex.
7. When a force $F$ is applied at the center of a pivoted rod, the moment of force is:
8. Turning effect can be increased by:
9. In uniform circular motion, the acceleration of the body is:
10. Two forces $F_1 = 5 \text{ N}$ and $F_2 = 5 \text{ N}$ act at the ends of a diameter $2 \text{ m}$ of a wheel in opposite directions. The moment of couple is:
11. The SI unit of G is $\text{N m}^2 \text{ kg}^{-2}$. Its value is approximately:
12. Which of the following has its CG at its geometric center?
13. To tighten a bolt, a force of $50 \text{ N}$ is applied to a wrench at an angle. The component of force responsible for torque is:
14. If a body is brought from the Earth to the Moon, which of the following is TRUE?
15. A couple consists of two forces that are:
16. The position of CG of a uniform cylinder of length $L$ is:
17. Centrifugal force is called a 'pseudo force' because:
18. The algebraic sum of moments of forces is zero for a body in:
19. A force $F$ produces a moment $M$ about a point $O$. If the force is doubled and the distance from $O$ is halved, the new moment is:
20. The point at which the whole weight of the body can be supposed to act is:
