April 17, 2021

“Learning is never done without errors.” # To determine the density of solid by using a spring balance and a measuring cylinder – Experiment-04

To determine the density of solid by using a spring balance and a measuring cylinder – Experiment-04?

## Aim

To determine the density of solid (denser than water) by using a spring balance and a measuring cylinder.

Theory

The mass of unit volume of a substance is called its density.
Density = Mass of the substance/Volume of substance
If D is density of a body of mass M and volume V, then D = M/V
In S.I. units density is expressed in kg/m3.

### Materials Required

A spring balance of appropriate range, a solid body (a piece of stone), thread, water and graduated cylinder of appropriate range.

Procedure To determine the density of solid by using a spring balance and a measuring cylinder

Step 1: A spring balance is taken of appropriate range.

Step 2: The number of divisions between two long graduation marks is found on the scale of the spring balance and find its least count.
Step 3: A thread is tied to the given solid body (a piece of stone) and suspended from the hook at the lower end of the spring balance. The reading of the pointer on the scale of the spring balance is noted. Let it be ‘W’. Thus ‘W’ is the weight of the given solid body in g wt. Mass of the solid body is W grams. Thus, M = W×10-3 kg.

Step 4: Some water is poured into the cylinder and the initial level of water in the cylinder is note. The reading at the lower meniscus of water (P) is taken on the graduated cylinder. Let it be V1.
Step 5: Now, the solid is fully immersed in water without touching the side walls of the cylinder. The level of water rises. The reading at lower meniscus of water level (Q) on the graduated cylinder is noted. Let it be V2.

### Observations:

Record your observation of measurement of mass and volume in the below tables as shown.

1. Table: For gravitational Mass of the Solid (M) Block

Mean gravitational mass of the solid block, w= ……………….g.wt (by spring balance)

2. Table: For Volume of the Solid Block (V)

Mean volume of the solid block by graduated cylinder v= ………….. ml(cm3).

Mass of the object:

You can calculate the density (D) of the given solid block (denser than water) with the calculated mean mass and volume.

Mass of the solid,  M = (i) Mass of the solid (m) = ………………… g

(ii) Mean volume of the solid block (V) =……………….cm3

(iii) Density (D) of the solid block = Mass / Volume

D = …………………. g/cm3

Result:

The density of the given solid (heavier than water) is ……………….. g/cm3./p>

Precautions
1. The measuring cylinder must be dry and clean.
2. The scale of the spring balance should be adjusted to read zero initially.
3. Take the reading only when the body comes to rest.

To determine the density of solid by using a spring balance and a measuring cylinder – Experiment-04?

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