Q. A rectangular block with base area A of 30 cm² and height h of 0.06 m is submerged in water of density 1000 kg m⁻³. What is the force exerted by the water acting on the top of the block?

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Q. The mechanic is able to apply a smart effort to lift one side of the car for changing tyres with the help of

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Q. A 15 N force exerted on a small piston of area 0.025 m². The large piston has the area of 0.05 m². What is the pressure exerted on the liquid by the small piston?

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Q. If a column of liquid of height is h, base area is A and density is p, then the volume V is given by

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Q. The amount of pressure inside a body of liquid increases with its

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Q. A 15 N force exerted on a small piston of area 0.025 m². The large piston has the area of 0.05 m². What is the force exerted by the large piston on the load?

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Q. (Height of column × density of liquid × gravitational field strength) is equal to

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Q. An enclosed body of liquid is able to transmit pressure that is unchanged to

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Q. The system that helps a car driver to stop the car and to control the speed of the car he is driving is

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Q. A 15 N force exerted on a small piston of area 0.025 m². The large piston has the area of 0.05 m². What is the pressure exerted on the large piston?

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Q. Hydraulic system make use of transmission of pressure to do useful work in

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Q. If p is the pressure, F is the force and A is the area, then we can calculate pressure by

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Q. What is the pressure under the man's feet if his mass is 60 kg and the area of his shoes in contact with the ground is 200 cm²?

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Q. The force acting per unit area is known as

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Q. The Si unit of pressure is

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Q. The force acting over a smaller area exerts

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Q. If a rectangular brick 20 cm by 10 cm by 5 cm has a density of 2 g cm⁻³ and the strength of gravitational field os 10 N kg⁻¹,what is the minimum pressure exerted by the block when it is placed on one face?

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Q. If a rectangular brick 20 cm by 10 cm by 5 cm has a density of 2 g cm⁻³ and the strength of gravitational field os 10 N kg⁻¹,what is the maximum pressure exerted by the block when it is placed on one face?

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Q. Simple machine ‘lever’ works on the principle of

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Q. If an object is in equilibrium, The resultant moment about the pivot must be

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