mass, density, volume, & buoyancy! what the heck are they?
TRANSCRIPT
MASS, DENSITY, VOLUME, & BUOYANCY!
WHAT THE HECK ARE THEY?
MASS (COPY ONTO PAPER)
Mass is how heavy something is without gravity (COPY)
Another way of describing mass is:Mass is how much matter an
object hasMass is measured in grams (g) or
kilograms (kg)
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Examples of MASS
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DENSITY (COPY ONTO PAPER)
Sometimes density is easy to sense. If two objects have exactly the same size and shape, the denser one may feel heavier. But if their densities are very close together, it will be hard to tell a difference.
The only way to decide the density of a substance is to measure its mass and its volume, then divide.
Units for density g/cm3
DENSITY
DEFINITION: (COPY) The density of a material is defined as its mass per unit volume.
FORMULA (COPY)Density = Mass ÷ Volume
EXAMPLES OF DENSITY
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VOLUMEThe amount of 3-dimensional space an
object occupies (COPY)
For this example the volume is 4×5×10 = 200 units3
Units of volume include:cubic centimeters (cm3), cubic meters
(m3), liters (COPY)
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EXAMPLES OF VOLUME
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BUOYANCY
Upward force exerted on an object immersed in a fluid.
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EXAMPLES OF BUOYANCY
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ISAT COACH BOOK
Read and discuss lesson 57Assignment: Draw or find pictures
to demonstrate mass, density, volume, and buoyancy.