buoyancy
What force causes buoyancy
pressure
what kind of fluid is a glass of lemonade (mixed)
homogenous
what is the definition of mass
A measure of the amount of matter contained in or constituting a physical body
Does temperature affect viscosity
The viscosity decreases with an increase in temperature.
What does buoyancy depend on
volume
why do we need mixture
to obtain pure substances
what is the definition of density
the quantity of something per unit volume, unit area, or unit length
What are the main causes of viscosity
cohesive forces
What material has high buoyancy
helium
true or false: mixtures are always pure
false
how do you measure density
hydrometer
What are the 4 factors that affect viscosity
temperature, pressure, nature of fluid, velocity gradient
Why is buoyancy important to life
makes it possible for swimmers, fishes, ships, and icebergs to stay afloat.
Can all mixtures be separated
Mixtures can be physically separated by using methods
what is the definition of volume
How much space an object or substance takes up
Does viscosity increase or decrease with time
decreases with time
Is buoyancy a property of matter
physical property of matter
Is air A mixture
its a mixture of different gasses
What two measurements must be taken to calculate density
measure its mass, and then its volume
What happens when viscosity is too low?
causes wear and friction, which generate heat