Definitions
What is mass?
The amount of matter an object has.
What are the SI units for mass?
Grams (g)
What is Buoyant Force?
The upward force exerted by a fluid on a submerged object
What is the density of pure water?
1 g/ml
The density of a liquid is 0.629 g/ml. What is the mass of 115 ml of the sample?
72.34 g
What is volume?
The amount of space and object takes up.
What is the formula for density?
Density = Mass/Volume
17. An object will float if the mass of the water displaced is _____________ to the objects mass.
Greater than or equal to
As temperature increases (gets hotter), the density does what?
Decreases (goes down).
The density of carbon tetrachloride is 1.59 g/ml. Calculate the volume of 35 grams of the liquid.
22.01 mL
What is Density?
A measure of how compact an material is.
What are the SI units for volume, both liquid and solid?
Milliliter or centimeter cubed (mL or cm^3)
An object will sink if the mass of the water displaced is _______________ to the objects mass.
Less then
As pressure increases (goes up), the density does what?
A graduated cylinder was filled with 15ml of water. A solid object was immersed in the cylinder, raising the water level to 35 ml. The solid has a mass of 70 grams. What is the density of the object?
3.5 g/cm^3
What is buoyancy?
The ability of an object to float in a fluid.
What is the unit for density, both liquid and solid.
Grams per milliliter or grams per centimeter cubed. (g/ml or g/cm^3)
How can we make objects denser than water float?
By changing its shape causing more fluid to be displaced.
If an object displaces 35mL of water, what is the objects volume?
35 cm^3
What is displacement?
The amount of fluid that is moved out of the way when an object is submerged.
What units will displacement be measured in?
Milliliter or centimeter cubed. (mL or cm^3)
The buoyant force acting on an object in a fluid is equal to the weight of the fluid displaced by the object. This concept is known as:
Archimedes' principle
FINAL Jeopardy - Pick a wager
If you have many liquids together, the denser liquid will ____________ while the less denser liquids will go
______________.