Photo AI
A solid of mass 12 g has a volume of 1.5 cm³ - Junior Cycle Science - Question a - 2019
Question a
A solid of mass 12 g has a volume of 1.5 cm³. Calculate the density of the material. Hence identify the material as either water, granite, basalt or iron.
Worked Solution & Example Answer:A solid of mass 12 g has a volume of 1.5 cm³ - Junior Cycle Science - Question a - 2019
Step 1
Calculate the density of the material.
Answer
To calculate the density of a material, we use the formula:
ext{Density} = rac{ ext{Mass}}{ ext{Volume}}Given:
- Mass = 12 g
- Volume = 1.5 cm³
Substituting the values into the formula:
ext{Density} = rac{12 ext{ g}}{1.5 ext{ cm}^3} = 8 ext{ g/cm}^3Thus, the density of the material is 8 g/cm³.
Step 2
Hence identify the material.
Answer
Based on the density calculated, we can identify the material. The provided options are:
- Water: 1 g/cm³
- Granite: 2.75 g/cm³
- Basalt: 3 g/cm³
- Iron: 7.87 g/cm³
Since the density is 8 g/cm³, which is closest to that of iron, the material is identified as:
Material = Iron