Question

To investigate Archimedes' principle with household objects.

Describe how you find the density of a cantaloupe. Conduct the actual experiment at home and write your result down,

Put the object in a large container filled with water. Describe how you find the buoyant force on the object. Conduct the actual experiment at home and write your result down.

Answer 1

PART 1: To find the density of a cantaloupe.

Assume the cantaloupe as spherical.

1. Measure the diameter of the cantaloupe (d).
2. From the diameter (d), measure the radius of the cantaloupe, (r = d/2).
3. Calculate the volume of the spherical cantaloupe using the equation: (V = 4/3 r³).
4. Now, weigh the cantaloupe and measure the mass of cantaloupe (m).
5. Now we're all set. The density of the cantaloupe can be found using the equation:

PART 2: To find the buoyant force.

1. Measure the base area of the container (A).
2. Fill the container with water and mark the water level.
3. Now put the cantaloupe into water filled in this container.
4. Measure the water water level increase (h).
5. Now the volume increase is given by, (V= A.h)
6. According to Archimedes principle, buoyant force is given by the weight of the fluid displaced.

Where, is the density of water in the container.