Density , pressure and flotation

Question 1

Density

Answer 1

Mass per unit volume

Question 2

Density formula

Answer 2

Density = mass / volume

Question 3

Pressure (pa)

Answer 3

Force per unit area

Question 4

Formula of Pressure in fluid

Answer 4

Change in p=density X gravity X Change in height

Question 5

Pressure increases with

Answer 5

Depth

Question 6

Buoyant force / upthrust

Answer 6

Result of the pressure difference between the bottom and the top of an object submerged in a liquid

Question 7

Upthrust formula

Answer 7

Fb=(density of fluid)vg

Question 8

Archimedes principle

Answer 8

States that when an object is immersed in a fluid , the upthrust it experiences is equal to the weight of the displaced fluid

Question 9

Law of floatation

Answer 9

States that the weight of a floating object is equal to the weight of the fluid it displaces

Question 10

Pressure in gas ; Boyle’s law

Answer 10

States that at constant temperature, the volume of a fixed mass of gas is inversely proportional to its pressure