Density
The mass of a substance per unit of volume.
What is Density?
The amount of space an object takes up.
What is Volume?
True or False, Buoyancy is the downward force that a fluid exerts on an object less dense than itself.
What is false?
Between salt and fresh water, this has a higher density and thus objects have a greater buoyant force when submerged.
What is salt water?
What is the mass of an object with a density of 2 g/mL and a volume of 145 mL?
290 g
An example of units used for Density
What is g/mL or g/cubic cm?
Which substance has greater density, ice or water?
What is water?
This will happen to an object if the buoyant force is greater than the gravitational force.
What is float?
A fish will have this type of buoyancy if it isn't at the bottom of the lake or at the surface of the lake.
What is neutral buoyancy?
Of the following, this one would sink in fresh water which has a density of 1.0 g/mL.
a) Honey=1.42g/cm3
b) Olive oil=0.90g/cm3
c) Ethyl alcohol=0.81g/cm3
What is a) Honey?
State of matter that has the lowest density.
What is a gas?
Between ice and water, it is the least dense of the two.
What is ice?
A ball with a density of 0.9 g/ml is put in a bowl of maple syrup. The syrup has a density of 2.5 g/ml. Will the ball float?
What is yes?
Between water and syrup, this has the lower buoyant force.
What is water?
The density of an object with a mass of 50g that displaces 25mL of water?
What is 2g/mL?
The amount of matter in an object
What is the mass?
The downward force on an object
What is gravitational force?
If an object neither sinks or floats, it is said to have...
What is neutral buoyancy?
If a ship is sailing from fresh water into salt water, will it sit higher or lower in the water?
What is sit higher?
What is the volume of an object with a mass of 345 g and a density of 4 g/cubic cm?
86.25 cubic cm.
The units used for measuring Weight.
Newtons (N)
Which of the following wouldn't change when in space:
a) mass and weight
b) volume and mass
c) weight and density
What is b) volume and mass?
What will have a greater buoyant force in fresh water...a beach ball or a baseball?
What is a beach ball?
Best hockey team in the world.
Habs
The density of a piece of metal that has a mass of 120g. When placed in 50mL of water, the water rises to 70mL.
What is 6g/mL?