Question

You have rock A with a volume of 15cm3 and a mass of 45 g. You have rock B with a volume of 30cm3 and a mass of 60g.

Answer 1

According to the given question, rock B of mass 60g is heaviest and rock A  of mass 45g is lightest. Rock A is most dense and rock B is least dense.

What is the relation between density, mass and volume?

It is easy to determine a body's mass from its volume or vice versa using density; mass is equal to volume multiplied by density, while volume is equal to mass divided by density. This relation can be written as-

$Density = \frac{Mass}{Volume}$

Now, it is given that-

Volume of rock A = 15 $cm^{3}$, Mass of rock A = 45 g

Volume of rock B = 30 $cm^{3}$, Mass of rock B = 60 g

So,

Density of rock A = 45 / 15 = 3 $gm/cm^{3}$

Density of rock B = 60 / 30 = 2 $gm/cm^{3}$

Therefore, rock A is denser than rock B. Rock B is heaviest and rock A is lightest.

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Answer 2

The heaviest rock is rock B, which weighs 60g, while the lightest rock is rock A, which weighs 45g. Rock B is the least dense, whereas Rock A is the densest.

What connection exists between mass, volume, and density?

Using density, it is simple to calculate a body's mass from its volume or vice versa. Mass is equal to volume times density, whereas volume is equal to mass divided by density. This connection can be expressed as:

$Density = Mass/Volume$

Now that this is known,

Rock A has a volume of 15 $cm^{3}$ and a mass of 45 g.

Rock B has a volume of 30 $cm^{3}$  and a mass of 60 g.

So,

Rock density A = 45/15 = 3 $gm/cm^{3}$

Rock density B = 60/30 = 2 $gm/cm^{3}$

Rock A is therefore denser than Rock B. A is the lightest rock, whereas B is the heaviest.

To learn more about physics of mass, volume, and density:

brainly.com/question/952755

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