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