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DENSITY

DENSITY IS THE CONCENTRATION OF MATTER IN A PARTICULAR VOLUME

so, it depends on 

the mathematical formula for calculating density

MASS

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VOLUME

here is a clue that might help you remember the fomula

YOU HAVE ALREADY LEARN THAT OBJECTS OF THE SAME SIZE CAN HAVE  VERY DIFFERENT MASS

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SAME SIZE

DIFFERENT MASS

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Also, just because two objects are the same size doesn't mean they have the same density

I we look at this example, matter is more concentrated in a bowling ball than in a fotball ball of the same size.

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This means that the bowling ball has more mass in the same volume, so its density is higher

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it has a higher density

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GOMA

METAL

NOW LET'S THINK WHAT WOULD HAPPEN IF TWO OBJECTS HAVE THE SAME MASS BUT DIFFERENT VOLUME. FOR EXAMPLE, LET'S TAKE A RUBBER BALL AND A METAL BALL WITH THE SAME BUT, BUT DIFFERENT VOLUME.

 

The metal sphere now has the same mass as the rubber one but takes up much less volume, which is why it is said to be denser.

DENSITY OF WATER

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A cubic centimetre os water has a mass of 1 gram

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1 cm³

1 g

This means that the density of water is 1 g/cm ³

click below to find out how to measure density

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