FLIUDSProblem 1.1 Density

Physics for MS.5/1-2Banphue pittayasan

SchoolMr. Chaiporn Pattanajak

1. What material, of mass 39 g, has a volume of 5 cm2?

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

2. What is the mass of air in a room measuring 5m x 2 m x 3 m?

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

3. Aluminium has density of 2700 kg/m3. a) What is the density in g/cm3?

……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

b) What is the mass of 20 cm3 of aluminium?

……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

c). What is the volume of 27 g of aluminium?

………………………………………………………………………………………………………………………………………………………………………………………………………………………

5. Use the information below to calculate :

(a) the mass, volume, and density of the liquid.……………………………………………………………………………………………………………………………………………………………………………………………………………………………… (b) the mass, volume, and density of the stone.………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

4. Use the information below to decide which crown

is gold, which is silver, and which is mixture. Density : gold 19.3 g/ cm3 ; silver 10.5 g/ cm3

(Use below Table) Crown A

Crown B

Crown C

Mass (g) 3750 3750 3750

Volume (cm3) 357 194 315

Density (g/ cm3)

? ? ?

Crown A made by ……………….Crown B made by ……………….Crown C made by ………………..