IPC Notes Density. density – the mass of an object per unit volume ex) the density of a substance...
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Transcript of IPC Notes Density. density – the mass of an object per unit volume ex) the density of a substance...
Density
density – the mass of an object per unit volume
ex) the density of a substance describes how tightly packed the molecules are
An object will float if it is less dense than the liquid it is immersed in.
ex) oil floats on
water because
oil is less dense
than water
An object will sink if it is more dense than the liquid it is immersed in.
ex) a rock will sink
in water because
it is more dense
than water
QUESTION #1: Why does diet coke float in water, but regular coke sinks in water?
Regular coke is more dense than diet coke because it contains 39 grams of sugar, whereas diet coke has 0.1 grams of Nutrasweet.
QUESTION #4: Liquid A, Liquid B and Liquid C are all poured together. Liquid B is less dense than liquid C. Liquid A is more dense than liquid C. Which liquid would sink to the bottom? (Hint: draw a picture)
QUESTION # 5: What is the density of a liquid that has a mass of 1.70 grams and a volume of 2 mL? D = m / V
Would it sink or float in water?
QUESTION # 6: What is the mass of a block of wood that has a volume of 5.6 cm3 and a density of 0.75 g/cm3?