Density is a measure of how compact a material is. The greater the density, the more mass is squeezed into a particular volume. Mathematically, density is expressed as the ratio of mass to volume. Duration: 8:23.
VIDEO CHECK QUESTIONS
2.5a Why is the value of pi the same no matter what the size of the circle?
2.5b Why is the density of a material the same no matter what the size of the material?
2.5c What happens to the density of the fluid within a thermometer as the thermometer registers a higher temperature?
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