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