The question asks for the SI unit of mass. This requires knowledge of the International System of Units (SI) and the fundamental quantities it defines, along with their respective units.
The SI unit of mass is the kilogram.
Correct Option: B) Kilogram
The question asks to identify the fundamental property of matter that mass represents. We need to recall the definitions of mass, volume, weight, and density to determine the correct relationship.
Correct Option: A) Mass is fundamentally defined as the amount of matter an object contains. It is a scalar quantity and a measure of an object's inertia (resistance to changes in motion).
To convert a mass from kilograms to grams, we need to know the conversion factor between these two units. The relationship between kilograms and grams is a fundamental concept in the metric system.
Correct Option: C) 10000 Grams
The calculation shows that 10 kilograms is equal to 10,000 grams.
The question asks to identify the law that states mass is conserved in a chemical reaction. This is a fundamental principle in chemistry, often referred to as the Law of Conservation of Mass. We need to recall the definitions of the given options to find the correct one.
C) Law of Conservation of Mass — This law directly states that mass is neither created nor destroyed in a chemical reaction, meaning the total mass of reactants equals the total mass of products.
If the mass of an object is 5 kilograms and its volume is 2 cubic meters, what is its density?
To find the density of an object, we use the fundamental formula that relates mass and volume. Density is defined as the mass per unit volume.
Density \((D)\) is calculated by dividing the mass by the volume.
\[ D = \frac{\text{Mass}}{\text{Volume}} \]The unit for density is kilograms per cubic meter (\(\text{kg/m}^3\)), which is consistent with the calculation.
B) 2.5 kg/m³ is the correct density calculated from the given mass and volume.
The question asks to identify the correct statement about mass. To answer this, we need to understand the fundamental definition and properties of mass as a physical quantity, and differentiate it from related concepts like weight.
Correct Option: D) Mass is a scalar quantity