Pressure And Density Flashcards
What is the equation for density
Row = M/V
How do you find the density of a regular solid.
Measure the volume using a ruler.
Measure the mass using a digital mass balance
Use the equation density = m/v
How do you find the density of an irregular solid.
Find the volume using a eureka can.
Find the mass using a digital mass balance.
Use the equation row = M/V
Why does an object float or sink in water
An object will float if it’s density is less than waters and an object will sink if its density is more than waters.
What is the equation for pressure
P=F/A
What is a mercury barometer.
It measures atmospheric pressure by the height of the mercury being pished by pressure.
What is a manometer
Manometers measure the difference in pressure between a liquid or a gas
Why does a can collapse when the pressure inside is decreased. Use particles and collisions to help you in your answer
The pressure decreases as the particles are not colliding with the can at the same rate so they are transfering less energy. The atmospheric pressure pushing inwards remains the same meaning the resultant pressure crushes the can.
What is the equation linking density and pressure
P= row hg
What equation links volume and pressure
P1 V1 = P2 V2
What is the definition of pressure
Pressure is force per unit area
What is the equation for pressure in a liquid
Density times gravity times change in depth or height
