A) A force that exists only in liquids B) A force that causes motion between two surfaces in contact C) A force that depends on the weight of an object D) A force that opposes motion between two surfaces in contact
A) Relative friction B) Kinetic friction C) Static friction D) Dynamic friction
A) When an object is sliding down a slope B) When two surfaces are in relative motion C) When an object is at rest on a surface D) When an object is moving at constant velocity
A) Fluid friction B) Rolling friction C) Kinetic friction D) Static friction
A) It causes objects to slip easily B) It helps in moving objects easily C) It generates heat which is useful in winter D) It reduces wear and tear of surfaces
A) It makes writing on paper easier B) It helps in walking C) It reduces the efficiency of machines D) It increases the grip between tires and roads
A) The resistance of a fluid to flow B) The ability of a liquid to flow easily C) The tendency of a liquid to evaporate D) The measure of a gas's density
A) Temperature affects viscosity differently in different liquids B) Temperature has no effect on viscosity C) Higher temperature increases viscosity D) Higher temperature decreases viscosity
A) The velocity at which an object stops moving B) The velocity at which an object starts falling C) The maximum velocity attained by an object in free fall D) The velocity at which friction becomes zero
A) By measuring the velocity of an object at rest B) By measuring the acceleration of an object in free fall C) By dropping an object and measuring its velocity as it falls D) By measuring the velocity of an object on a frictionless surface
A) The resistance of an object to acceleration B) The mass of an object per unit of volume C) The volume of an object per unit of mass D) The weight of an object per unit of volume
A) The density of a substance compared to the density of gold B) The density of a substance compared to the density of air C) The density of a substance compared to the density of water D) The density of a substance compared to the density of iron
A) The force exerted by an object on a surface B) The force exerted by a liquid on an object immersed in it C) The force exerted by an object on a liquid D) The force exerted by gravity on an object
A) It floats if its density is greater than the fluid's density B) It sinks if its density is less than the fluid's density C) It floats if its density is less than the fluid's density
A) Its density B) Its weight C) Its mass D) Its volume
A) Force exerted per unit volume B) Force exerted per unit mass C) Force exerted per unit area D) Force exerted per unit distance
A) It depends on the type of fluid B) It remains constant throughout the fluid C) It increases throughout the fluid D) It decreases throughout the fluid
A) v = u - at B) v = u * a * t C) v = u + at D) v = u / a * t
A) Change in distance per unit time B) Change in time per unit distance C) Change in distance per unit velocity D) Change in velocity per unit time
A) 10 m/s² B) 4 m/s² C) 8 m/s² D) 6 m/s²
A) 5 m/s B) 20 m/s C) 2 m/s D) 10 m/s
A) B B) C C) D D) A
A) indirectly with volume B) directly with density C) directly with volume D) inversely with density
A) P = F/A B) P = √F\A C) P = A/F D) P = F²A²
A) P = 2.5 x 103Nm-2 B) P = 1.5 x 103Nm-2 C) P = 5 x 103Nm-2 D) P = 0.5 x 103Nm-2
A) E B) A C) C D) B E) D
A) Upthrust B) Pressure C) Floatation D) Density
A) D B) C C) B D) A
A) B B) C C) A D) D
A) B B) D C) A D) C
A) Density, pressure and viscous force B) Viscous force, mass, upthrust C) Density, upthrust, weight D) Viscous force, upthrust and weight
A) B B) C C) D D) A
A) C B) A C) B D) D E) E
A) B B) C C) A D) E E) D
A) 0.5ms-1 B) 25.0ms-1 C) 2.0ms-1 D) 50.0ms-1
A) Distance B) Speed C) Acceleration D) Velocity
A) Velocity on the vertical axis and time on the horizontal axis B) Velocity on the vertical axis and acceleration on the horizontal axis C) Acceleration on the vertical axis and velocity on the horizontal axis D) Time on the vertical axis and velocity on the horizontal axis
A) B B) A C) C D) D
A) The stone dropped in the cylinder of engine oil gets to the bottom faster B) They both stop at the middle of the cylinder C) The stone dropped in the cylinder of water gets to the bottom faster D) They both get to the bottom at the same time
A) Viscidity B) Viscoelastic C) Viscostatic D) Viscoidal
A) Brownian's principle B) Archimedes principle C) Pascal's principle D) Newton's principle
A) B B) A C) C D) D
A) Hygrometer B) Calorimeter C) Hydrometer D) Barometer
A) A B) C C) B D) D E) E
A) A B) D C) C D) B
A) C B) D C) A D) B
A) Friction force B) Upthrust C) Weight D) Reaction force
A) Uniform velocity B) Distance C) Retardation D) Acceleration
A) Distance B) Time C) Mass D) Acceleration
A) Push forces and pull forces B) Field forces and push forces C) Contact forces and field forces D) Magnetic forces and contact forces |