What are your observations? Discuss it with your friends and compare them with the observations and…

Question

What are your observations? Discuss it with your friends and compare them with the observations and conclusions in Annex 2.2.

ScanSolve AI Tutor · Accepted Answer

Here's how to perform Activity 12 to investigate the densities of different solid materials:

Aim: To investigate the densities of different solid materials.

Materials needed: Various metal samples (e.g., iron nail, iron rod piece, lead, aluminium, copper, zinc), balance, measuring cylinder, beaker, water, forceps, scale.

a)* Start by collecting samples of the metals you want to test.
Make sure they are clean and free of any dirt or debris. This ensures accurate measurements.
b)* Weigh the mass of each metal sample using a balance and record the mass in grams.
This will be the 'Mass' component for the density calculation.
c)* Fill the measuring cylinder with a known volume of water and record this initial volume.
This is your starting point for measuring volume displacement.
d)* Carefully lower the first metal sample into the water in the measuring cylinder using a pair of forceps.
Make sure the metal is fully submerged without splashing.
e)* Measure and record the new increased volume of water after adding the metal sample.
The volume should be measured in $\text{ml}$ or $\text{cm}^3$ (where $1 \text{ ml} = 1 \text{ cm}^3$ ).
f)* Repeat steps b through e for each metal sample you wish to test.
This ensures you have mass and volume data for all samples.
g)* Calculate the volume of each metal sample by subtracting the initial volume of water (from step c) from the final volume of water (from step e).
$\text{Volume of metal sample} = \text{Final volume of water} - \text{Initial volume of water}$
h)* Use the formula
Density = Mass / Volume to calculate the density of each metal sample.
$\text{Density} = \frac{\text{Mass}}{\text{Volume}}$
The unit for density will typically be $\text{g/cm}^3$ or $\text{g/ml}$ .

What are your observations? Discuss it with your friends and compare them with the observations and conclusions in Annex 2.2.

Step-by-step solution

a)* Start by collecting samples of the metals you want to test.

b)* Weigh the mass of each metal sample using a balance and record the mass in grams.

c)* Fill the measuring cylinder with a known volume of water and record this initial volume.

d)* Carefully lower the first metal sample into the water in the measuring cylinder using a pair of forceps.

e)* Measure and record the new increased volume of water after adding the metal sample.

f)* Repeat steps b through e for each metal sample you wish to test.

g)* Calculate the volume of each metal sample by subtracting the initial volume of water (from step c) from the final volume of water (from step e).

h)* Use the formula

Still stuck on this one?

More Physics Questions