Density

Question 2

Equation, unit and symbol of:

Density

Answer 2

Mass/Volume
kg/m^3
ρ (rho)

Question 3

What is the density of:

Water

Answer 3

1 g/cm^3

Question 4

When will an object float in water

Answer 4

When it has a density lower than water (1g/cm^3)

Question 5

When will an object sink in water

Answer 5

When it has a density higher than water (1g/cm^3)

Question 6

A student is investigating the density of honey. She pours 20 g of honey into a measuring cylinder and measures the volume to be 14 cm 3 . Then, she pours the honey into a glass of water. The honey and water do not mix.

Will the honey sink or float on the water? + What is the density?

Answer 6

Sink (density =1.4)

Question 7

How do you calculate the density of an irregularly shaped solid

Answer 7

To find the mass: We measure the mass before putting the object in water
To find the volume: We put this object to a measuring cylinder that already has water in it: We record the change in volume.
To find density: Divide the objects mass by the change in volume.