Density
Buoyancy
Floating/Sinking
Calculate It!
Grab Bag
100
What is the formula for density
D = m/v
100
Buoyancy is the upward _________ exerted on an object submerged in fluid.
force
100
Objects float if their densities are ________ than the density of the fluid they are in.
lower / less than
100
A graduated cylinder contains 10 mL of water. You add an object, and the water level rises to 22 mL. What was the volume of the object?
12 mL
100
In the image above, which color liquid has the highest density?
Blue
200
Is a small piece of steel more, less or equally dense as a large piece of steel?
Equally dense
(Density is independent of quantity or shape)
(Density is independent of quantity or shape)
200
Archimedes' Principle states that the buoyant force on an object is equal to the weight of what?
The fluid it displaces
200
Objects sink if their densities are _________ than the density of the fluid they are in.
higher / greater than
200
Calculate the density of an object with a mass of 20 g and a volume of 40 mL.
.5 g/mL
200
A sample of rubbing alcohol has a density of .8 g/mL and a mass of 20 g. What is the volume of the sample?
25 mL
300
Which phase of matter generally has a higher density: gasses or solids?
Solids
300
As more of an object is submerged in a fluid, what happens to the buoyant force?
It increases
300
If an object with a density of 1.1 g/mL is placed in water, will it float or sink?
Sink
300
What is the volume of a box with the dimensions 12 cm x 4 cm x 2 cm
96 cm3
300
A sample of a liquid has a volume of 50 mL and a mass of 51.5 g. Use the chart above to identify the liquid.
Dawn Dish Washing Liquid
400
To lower the average density of an object like a tinfoil boat, would you need to increase or decrease it's volume?
increase
400
What force acts in opposition to the buoyant force?
Weight / Gravity
400
An object displaces 11 mL of water, and weighs 9 g. Will it float or sink?
Float
400
What is the buoyant force on a rock with a volume of 40 mL that is submerged in water?
40 g
400
A liquid is found to float on top of water and underneath rubbing alcohol. According to the chart, what must the liquid be?
Vegetable Oil
500
Would an object with a small volume for it's mass have a high or low density?
High density
500
What two phases of matter are considered 'fluids'?
Liquids and Gasses
500
If an object is the exact density of the fluid it is in (not sinking or floating) we say it is neutrally ___________.
buoyant
500
Dish soap has a density of 1.1 g/mL. How much would 45 mL of dish soap weigh?
49.5 g
500
Which candy bar floated in water?
3 Muskateers