Materials required:
The Procedure:
As performed in a real lab:
Fill ¾ ths of a tray with dry sand and level it.
- Measure the dimensions of a solid iron cuboid accurately using a scale. Mark the three faces of the cuboid as A, B and C.
- Place the solid iron cuboid by the surface A on the plane levelled sand in the tray.
- After a few minutes, remove the Iron cuboid and you will see that it has made a depression in the sand.
- Measure the depth (depression) it has made in the sand using the scale.
- Repeat the same procedure for the other two surfaces.
As performed using the simulator:
- You can choose the environment in which you want to conduct the experiment: Earth or Moon.
- Select the iron cuboid’s face of your choice by clicking on that particular one.
- To find the depression made, you’ll first have to remove the iron cuboid from the tray. To do this, just click on the iron cuboid that is in the tray.
- Now calculate the Area and Pressure and note the values in the respective boxes. (Area = Length x Breadth) (Pressure = Thrust / Area, where Thrust = Mass x Acceleration due to gravity)
- Measure the depth (depression) made in the sand using the scale. To do this, click on the ‘Show Scale’ and ‘Tray Cross Section’ check box to take the measurement.
- The measurement can be taken by placing the scale against the right cross section of the tray.
- Repeat the same procedure for the other two surfaces.
- Once done, the simulation can be repeated by selecting a different environment from the one chosen earlier.
Observations:
Gravitational force on the environment = ……..
- Calculate the area occupied by each surface of the solid iron cuboid.
-
- Area occupied by surface A in the sand = .............
- Area occupied by surface B in the sand = .............
- Area occupied by surface C in the sand = .............
- Calculate the pressure made by each surface of the solid iron cuboid.
- Pressure made by the surface A in the sand = ............. N
- Pressure made by the surface B in the sand = ............. N
- Pressure made by the surface C in the sand = ............. N
- Calculate the Depression.
-
- Depression made by the surface A in the sand = ............. cm
- Depression made by the surface B in the sand = ............. cm
- Depression made by the surface C in the sand = ............. cm
Precautions:
- Dried sand must be used.
- The tray must have significant length and width.
- Appropriate cuboid of dimension must be used.