Prep 1 (Density

Density of matter =

• Mass / Volume
• Mass x Volume
• Mass + Volume
• Mass - Volume

Density of red copper equal 8.8 gm/cm3 means that

• 8.8 grams of red copper occupy a volume of 1 cm3
• 8.8 cm3 of red copper weigh 1 gram
• 8.8 grams of red copper weigh 1 cm3

The mass of water in gm is always ..................its volume in cm3 ( Density of water 1gm/cm3)

• Equal to
• Greater than
• Less than
• None of the above

The density of substance whose mass is 15 gm and occupied volume equal 30 cm3 is ........................the density of water ( density of water 1 gm/cm3)

• less than

• more than

• equal

Equal masses f different substance have ...................... volume

• Similar

• Different

• Constant

• Equal

When substance sink in water this means that the density of substance .................. the density of water

• less than

• more than

• equal

• half

The density of petroleum oil is ....................................... density of water

• less than

• more than

• equal

• half

the balloons that are filled with helium gas rise up due to .........

• the density of helium gas less than air

• the density of helium gas more than air

• the density of helium gas equal air