P11
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What is the equation to work out pressure
P=force/area
Calculate pressure exerted when 400N is applied to an area of 4m squared
100p
What are the units for pressure
Pascals
What does pressure in water depend on
The amount of liquid above the object
How to calculate weight
GravityXMass
How to calculate mass with density and volume
DensityXVolume
What is the equation for pressure in gases using density gravity and height
DensityXGravityXHeight
Calculate the atmospheric pressure with air of height 53 if the average P air=0.86kg/m cubed and gravity=9.8N/Kg
P=pXhXg.0.86X9.8X53=446
What is upthrust
It’s the upward force that a fluid exerts on something floating on it
When does an object float
When it’s weight is equal or less than the upthrust provided by the fluid
How do you calculate area from radius
Pi r squared