Density test
1)
(1)
2) A sample of ethanol has a volume of 240cm³. Its mass is found to be
190g. What is the density of ethanol?
(2)
3) Calculate the density of mercury if 500 cm³ has a mass of 6.60kg.
Give your answer in g/cm³.
(3)
4) An ice cube has dimensions shown in the figure below
The measurements of the length of this ice cube are in centimetres.
Its mass is 340 g. Calculate:
(i) The volume of this ice cube.
(1)
(ii) The density of this ice cube.
(1)
5) The average density of a hot air balloon is 0.85kg/m³
The volume of this air is 2800m³
(i ) State the equation linking density, mass and volume.
(1)
(ii) Calculate the mass of hot air in the balloon.
(3)
Mass of hot air = .....................kg
6) A student has a small piece of stainless steel metal.
Describe an experiment that he could do to find the density of the
stainless steel. You may draw a diagram to help your answer.
(5)
Ans: At first, measure the mass of the stainless steel metal by using an
electronic balance. Then, measure the volume of the stainless steel by
displacement method using a measuring cylinder or displacement can.
The recorded mass and volume is then placed in the formula
Density=mass/ volume. Therefore, we can find the density of the
stainless steel metal. For more accuracy, the experiment is repeated
and the average answer is taken.
