Uploaded May 2021 | Updated September 2026, 2 hours ago
Density is the mass per unit volume of a substance.
In this video I demonstrate three methods for measuring the density of different substances.
I start by demonstrating how to measure the density of a liquid (water, in this case).
I then measure the density of a regular solid (an aluminium cube), by measuring its dimensions.
Finally I look at an irregular shape (a lump of lead), using a eureka (archimedes) can to measure its volume.
The top pan balance measures the mass in grams. The flickering of the readout is caused by "aliasing", which is due to the frame rate of the camera being slightly different to the refresh rate of the digital display. I edited the video to try and minimise this effect.
Density is the mass per unit volume of a substance.
In this video I demonstrate three methods for measuring the density of different substances.
I start by demonstrating how to measure the density of a liquid (water, in this case).
I then measure the density of a regular solid (an aluminium cube), by measuring its dimensions.
Finally I look at an irregular shape (a lump of lead), using a eureka (archimedes) can to measure its volume.
The top pan balance measures the mass in grams. The flickering of the readout is caused by "aliasing", which is due to the frame rate of the camera being slightly different to the refresh rate of the digital display. I edited the video to try and minimise this effect.
