1. In SI system density is measured in
2. The volume of an irregularly shaped solid can be measured by measuring the volume of water displaced
by using a Eureka can
3. Mercury exists as a liquid at room temp
4. Solids have a lower density than liquids
5. A piece of wood sinks in water
Answers
Answer: 1. The SI unit of density is the kilogram per cubic meter [kg/m3].
2. A 'eureka can' can be used in these cases. A eureka can is a container large enough to hold the object with a spout positioned near the top. The can is filled to the top with water and the object placed in it.
3. It is the only metal that is liquid at standard conditions for temperature and pressure. The only other element that is liquid under these conditions is bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.
4. Density is how close together the molecules are in a substance. Liquids are usually less dense than solids but more dense than air.
5. NO.
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