density Flashcards

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1
Q

what does density of a substance mean

A

its defined as mass per unit volume

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2
Q

equation for density

A

P= m/v
Density= Mass/Volume

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3
Q

units for density

A

kg/m³ + g/cm³

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4
Q

How to calculate density of A regular object

A

To calculate the density you need to calculate the mass and volume of the object. To measure mass, place the object on a top pan balance and read of the mass. The volume of a regular shape can be done by direct measurement. Measure the width length and height of the Metal cube using a ruler and multiply all of it together in grams or centimetre cubed. As density = mass/ volume , divide the findings for the mass by volume to get the density in g/cm cubed or kg/meter cubed.

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5
Q

Calculate the density of an irregular object

A

Density is calculated as Mass/Volume So to find the mass , measure it on a Mass balance to get the readings in kg or g. To find the volume immerse the object in a Eureka can and the water that is displaced into the measuring cylinder is the volume . Now divide the readings for the mass by the volume to get the density

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6
Q
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