From this picture we can conclude that equal volumes of different substances have ……….. masses due to difference in their …………..
different – densities.
The density of cube of copper whose volume 2 cm3 is different from the density of the other cube whose volume 10cm3. [True or False]
false
Arrange the following cubes ascendingly according to the density. Knowing that they have the same mass.
2, 3, 1
-what do you conclude from the illumination of the electric lamp?
substance (x) is a good conductor of electricity.
what happens when the iron nail is replaced by a piece of wax? Why?
the piece of wax melts, because the melting point of wax is low.
In the following two figures after the key is closed. In which figure does the lamp illuminate? Why?
In fig.(A), because alkaline solution is a good conductor of electricity.
