Physics Half Early Exam - Maria Regina College, Mosta Secondary School Zokrija, 2012/2013 Page 4
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104.
This question is about density.
a) Density is the mass per unit ________________.
[1]
b) Andrea wants to know if apples and pears float or sink in water.
He measures the mass and the volume of an apple and a pear.
3
Mass (g)
Volume (cm
)
145
150
Apple
145
125
Pear
3
(i) Using the values in the table, work out the density of each fruit in g/cm
.
Apple ____________________________________________________
[1]
Pear ____________________________________________________
[1]
3
(ii) Water has a density of 1 g/cm
. When he places the apple and the pear in
a sink filled with water, he notices that only the _____________ floats
because its density is __________ than that of water.
[2]
c) Andrea finds five iron nails of different size. Underline the correct answer.
The iron nails have :
(i) (the same, a different) mass.
[1]
(ii) (the same, a different) volume.
[1]
(iii) (the same, a different) density.
[1]
Page 4 of 10
Physics Half yearly exam 2013 – Track 3 - Form 3
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