Like parallel forces act in which direction?, Same direction, At right angles, Random directions, Opposite direction, Unlike parallel forces act in which direction?, No direction, Opposite direction, Same direction, Circular direction, The head-to-tail rule is used to add what?, Temperatures, Scalars, Masses, Vectors, A rigid body is a body that does not easily change its what?, Weight, Color, Shape, Volume only, Moment of force is the turning effect of a force about a what?, Spring, Lens, Magnet, Pivot, A couple consists of two equal forces acting in opposite directions and separated by a what?, Mass, Distance, Temperature, Color, Resolution of vectors means splitting a vector into its what?, Charges, Atoms, Components, Layers, According to the principle of moments, for equilibrium total clockwise moment is equal to total what moment?, Anticlockwise, Linear, Frictional, Upward, The center of gravity is the point where the whole weight of a body appears to act., False, True, Neither False Neither True, May be false & May be true, Center of mass is the point where the entire mass of a body may be considered concentrated., True, False, Neither False, Neither True, May be false & May be true, A body is in equilibrium when the net force on it is what?, Constant, Maximum, Infinite, Zero, Static equilibrium means the body is at rest and all forces are what?, Increasing, Rotating, Balanced, Unequal, Dynamic equilibrium refers to motion with what net force?, Downward, Large, Zero, Variable, The first condition of equilibrium requires the resultant of all forces to be what?, Circular, Zero, Negative, Positive, The second condition of equilibrium requires the sum of all torques to be what?, Zero, Maximum, Positive, Clockwise, In stable equilibrium, after a small displacement the body tends to what?, Move away, Fall over, Speed up, Return back, In unstable equilibrium, after a small displacement the body tends to what?, Stop rotating, Move away, Return back, Stay fixed, In neutral equilibrium, after a small displacement the body tends to what?, Move away, Return back, Stay there, Break apart, Which method improves the stability of a body?, Raise center, Add speed, Narrow base, Lower center, The force directed toward the center in circular motion is called what?, Centripetal force, Friction force, Magnetic force, Buoyant force

Class 9 Physics MCQs Chapter 4

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