Determining if an object will float or sink

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Presentation transcript:

Determining if an object will float or sink Density Determining if an object will float or sink

What is density?? Definition - Density is a measure of how much mass is contained in a given unit volume

What is volume?? Definition – Is the amount of space a substance takes up. FORMULA for a rectangular solid – L x w x h

What if its NOT a rectangular solid?? Water displacement – *Using a graduated cylinder determine the difference in volume before and after the object was put in * The difference = the Volume of the object DETERMINE THE VOLUME OF THE FISH: __________ 6 mL

Let’s practice density calculation… Units: Density: g / mL or g / cm3 Volume: mL or cm3 Mass: grams

Let’s Practice one A student determines that a piece of an unknown material has a mass of 5.854 g and a volume of 7.57 mL. What is the density of the material?

Let’s try another one… Mercury has a density of 13.5 g/mL. How much space would 50.0 g of mercury occupy?