Density problems

Obtain the density (in the SI) of a solid body with 2’5kg of mass which occupies a volume of 3 litres.

• 833,33 kg/m³

• 0,833 kg/l

• 1,2 kg/m³

• 1,2 kg/l

• 7,5 kg/m³

Obtain the density of a liquid if we know that a volume of 300ml has a mass of 150g. Express the density in Kg/l

• 45000 kg/l

• 2 kg/l

• 0,045 kg/l

• 0,5 kg/l

During an excavation, archaeologist have found a metal object. They want to know which metal is. They put it on some scales and obtain a value of 137g. When they submerge it in water, it displaces a volume f 15,4cm³. Which metal is?

• Aluminio

• Cobre

• Hierro

• Plomo

The density of the gold is 19’32 g/cm³. Obtain the mass (in the SI) of a gold bar with a volume of 1’23 l.

• 23,76 kg

• 0,064 kg

• 15,63 kg

Calculate the density of an object. To do this, we measure its mass onsome scales, obtaining a value of 50,2g. We also measure its volume in a graduated cylinder. The water initially has a volume of 22cm³. When we put the object in the water, the volume rises to 34cm³.

• 4,18 g/cm³

• 0,24 g/cm³

• 1,47 g/cm³

• 2,28 g/cm³

Tags

NGSS.MS-PS1-2

Calculate the mass of a surfboard that is about 60dm³ if the density of “balsa wood” which is made of is 160kg/m³.

• 9600 kg

• 26,67 kg

• 0,375 kg

• 9,6 kg

Obtain the volume of an item if it has a mass of 4560 g and we know the density of the material is about 1950 kg/m³

• 2,34 ·10¹ m³

• 2,34 ·10^-3 m³

• 4,28 ·10² m³

• 8,89 ·10⁶ m³

Obtain the volume in litres of a block of iron (look at the table for density) with a mass of 2345 g.

• 2,98 ·10^-1 m³

• 3,36 m³

• 2,98 ·10^-4 m³

• 1,85 ·10⁴ m³