Density
Q1.
A student wanted to determine the density of a small piece of rock.
(a)  Describe how the student could measure the volume of the piece of rock.
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(4)
(b)  The volume of the piece of rock was 18.0 cm3.
The student measured the mass of the piece of rock as 48.6 g.
Calculate the density of the rock in g/cm3.
Use the equation:

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Density = _______________________ g/cm3
(2)
The graph below shows the densities of different types of rock.

(c)  What is the most likely type of rock that the student had?
Tick one box.
 
Basalt		
Flint		
Granite		
Limestone		
Sandstone		
(1)
(d)  Give one source of error that may have occurred when the student measured the volume of the rock.
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(1)
(e)  How would the error you described in part (d) affect the measured volume of the rock?
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(1)
(Total 9 marks)