upthrust n floatation

Question 1

what is upthrhust?

Answer 1

an upward force on an object due to the fluid

Question 2

what is upthrust caused by?

Answer 2

the pressure of the fluid

Question 3

why does the water level rise when you put an object into a container?

Answer 3

the object displaces some of the water

Question 4

the more the object is lowered into water (2)

Answer 4

the bigger the volume of water displaced, the bigger the upthrust

Question 5

what happens when the object is fully immersed?

Answer 5

the volume of the water displaced is = volume of object

Question 6

when does an object sink?

Answer 6

if it’s weight is greater than the upthrust on it when it’s fully immersed

Question 7

when does an object float?

Answer 7

when its weight is = to upthrust

Question 8

(denstiy) when does an object sink?

Answer 8

when density is greater than density of water

Question 9

(denstiy) when does an object float?

Answer 9

when density is less than density of water

Question 10

what does the pressure at the point in a fluid depend on?

Answer 10

density of fluid and depth of fluid at that point