1.5 Density

the unit of density is

• g cm³

• g cm^-3

• g cm²

• g cm

The formula of density( g cm^-3) is

• mass X volume

• mass - volume

• mass / volume

• volume / mass

Ballon gas contain helium gas float in the air because

• helium gas denser than air

• helium gas less dense than water

volume of A is 5 cm³. the mass of A is 100 g.

The density of A is

• 10 gcm-3

• 20 gcm-3

• 5 gcm-3

• 1 gcm-3

the density of B is 5gcm-3. the volume of B is 30 cm3. the mass of B is

• 30 g

• 150 g

• 35 g

• 50 g

density can be determine using

• eureka method

• water displacement method

if the density of B is 1.5 gcm-3, and density of water is 1,0 gcm-3, then

• the water will float

• B will float on water

• B will sink in water

• both water and B will sink

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³