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Physics

OVER TO YOU! DID YOU KNOW?

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1. What evidence is there from daily life that ice is less dense ● Neutron stars (10 kg/m )
than water? and black holes
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(10 kg/m ) have the
2. Oil floats on water. Wood floats on water. Why do you think
greatest density in the
this happens?
universe. A gas called
textbooks nis edu kz
3. A solid block of steel sinks in water. But a ship made of steel floats intergalactic medium
on water. Why do you think this happens? has the lowest density
(10 kg/m ).
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OVER TO YOU!

1. How do you think the density of an apple would change if you
took a bite out of it?

2. Which of three forks (steel, aluminium and silver) of identical
volume has the greatest density?

3. Three measuring beakers with different liquids are shown in the
image below. Design an investigation to compare the densities
of each individual liquid. ● The density of solid
and liquid substances/
objects back on Earth is
usually measured using a
hydrometer.

milk water petrol

4. If we were to mix these three liquids together, how would you
calculate the density of the final mixture?

5. Imagine you make this figure out of modelling clay. How does
the mass, volume and density of the original piece of modelling
clay change?

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