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