Science: Understanding Mass, Density, Volume, and Measurement Units

Flash cards #1

What is mass?

Mass is a fundamental property of matter that quantifies the amount of 'stuff' in an object. It is a measure of an object's inertia, or its resistance to changes in its state of motion. Unlike weight, mass does not change with gravitational force.

How is mass measured and what are its SI units?

Mass is typically measured using a balance, and its standard metric unit is the kilogram (kg). Other common units include grams (g) and milligrams (mg).

What is volume?

Volume is the amount of three-dimensional space that an object occupies or contains.

How is volume measured?

Volume can be measured:

1. For regular shapes: Using geometric formulas (e.g., \text{Volume of a cube} = \text{side}^3 ).
2. For liquids: Using graduated cylinders or beakers.
3. For irregular solids: Using the water displacement method (Archimedes' Principle).