Density = Mass / Volume
Therefore, to determine density, you need instruments to measure both mass and volume. Here are some common instruments used for each:
For Mass:
* Balance scale: A balance scale uses the principle of equilibrium to compare the unknown mass with known weights.
* Digital scale: These scales provide a digital readout of the mass, often with higher precision than balance scales.
* Spring scale: These measure force, but can be used to measure mass indirectly by measuring the force of gravity acting on an object.
For Volume:
* Graduated cylinder: This is a cylindrical container with markings on the side to indicate specific volumes.
* Beaker: While not as precise as graduated cylinders, beakers are useful for measuring approximate volumes.
* Pipette: These are used to measure and transfer small, precise volumes of liquids.
* Burette: Used to deliver precise volumes of liquids, especially in titrations.
* Displacement method: This method involves immersing an object in a liquid and measuring the volume of the liquid displaced.
To Summarize:
You don't measure density directly with a single instrument. Instead, you need to measure mass and volume using appropriate tools, then calculate the density using the formula. The specific tools you use will depend on the size and type of material you are measuring.