Archimedes Principle
Title:
Archimedes principle
Objective:
To use Archimedes Principle to determine the density of an object more dense than water.
Introduction:
Archimedes ' principle is a law of physics stating that the upward force (buoyancy) exerted on a body immersed in a fluid is equal to the weight of the amount of fluid the body displaces. In other words, an immersed object is buoyed up by a force equal to the weight of the fluid it actually displaces. Hence, the buoyant force on a submerged object is the same with the weight of the fluid displaced. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms, the principle states that the buoyant force on an object is going to be equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational constant, g. Thus, among completely submerged objects with equal masses, objects with greater volume have greater buoyancy. In this experiment, to calculate the density, we can use two methods:direct and indirect measurement. Direct measurement is used to calculate the mass and volume of object eg. magnet bar, pendulum bob and marble by using vernier calipers. By finding the density, we could determine the specific gravity of the object(the ratio of its density versus that of water, ρwater=1000kg/m3).
ρ=m/█(v@ )
Apparatus:
Newton gauge, metal samples which are magnet bar, marble, pendulum bob, small nut and big nut, beaker, and graduated cylinder.
Procedure: The weight of one of the metal samples is determined. The volume of the sample with a regular shape is determined by using direct measurement with the vernier calipers. The volume of the sample with regular or irregular shape is determined by using the displacement of water in a graduated cylinder. Step 1 until 3 is repeated for the second and third metal sample. Step 1 until 3 is
Archimedes principle
Objective:
To use Archimedes Principle to determine the density of an object more dense than water.
Introduction:
Archimedes ' principle is a law of physics stating that the upward force (buoyancy) exerted on a body immersed in a fluid is equal to the weight of the amount of fluid the body displaces. In other words, an immersed object is buoyed up by a force equal to the weight of the fluid it actually displaces. Hence, the buoyant force on a submerged object is the same with the weight of the fluid displaced. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms, the principle states that the buoyant force on an object is going to be equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational constant, g. Thus, among completely submerged objects with equal masses, objects with greater volume have greater buoyancy. In this experiment, to calculate the density, we can use two methods:direct and indirect measurement. Direct measurement is used to calculate the mass and volume of object eg. magnet bar, pendulum bob and marble by using vernier calipers. By finding the density, we could determine the specific gravity of the object(the ratio of its density versus that of water, ρwater=1000kg/m3).
ρ=m/█(v@ )
Apparatus:
Newton gauge, metal samples which are magnet bar, marble, pendulum bob, small nut and big nut, beaker, and graduated cylinder.
Procedure: The weight of one of the metal samples is determined. The volume of the sample with a regular shape is determined by using direct measurement with the vernier calipers. The volume of the sample with regular or irregular shape is determined by using the displacement of water in a graduated cylinder. Step 1 until 3 is repeated for the second and third metal sample. Step 1 until 3 is