Last seen: Nov 14, 2021
(a) Density of a substance is defined as the mass of the substance per unit volume. Density of substance = SI unit of Density is kg/m3. The rel...
(a) pressure (b) buoyant (c) average (d) all; increases (e) less; density (f) weight; area (g) bigger; smaller
The body will float when dipped in a bucket of water as its density is less than that of water.
Because the weight of the block of wood is less than the weight of an equal volume of water. So when it is completely submerged in water, the upward b...
Mass of the substance = 100g Volume of the substance = 10 cm3 Density of substance = Density = = 10 g/cm3
Volume = 5 m3 Density = 3000 kg/m3 Density of cement = Mass of cement = Density of cement x volume of cement = 3000 x 5 = 15000 kg
Density of gold = Volume of gold = = = 5 cm3
Archimedes gave the magnitude of buoyant force acting on a solid object immersed in a liquid.
Since the object floats in the liquid, so the magnitude of the buoyant force exerted by the liquid is equal to the weight of the object. Hence, buo...
Pressure = Force = Area x pressure = 0.5 x 500 = 250 N
The density of ice is less than that of water, so ice floats in water.
The buoyant force on a boat is caused by the pressure of water ‘pushing up’ on the bottom of the boat.
The tendency of a liquid to exert an upward force on an object placed in it, is called buoyancy.
Buoyant force or upthrust.
Pressure is ‘thrust per unit area’.
The relative density of mercury is 13.6, this means that mercury is 13.6 times as heavy as an equal volume of water.
Archimedes’ Principle.
The upward force acting on an object immersed in a liquid is called upthrust.
Buoyant force.
Upthrust is the other name of buoyant force.