P1.3.5 - Floating and sinking

Question 1

What is upthrust?

Answer 1

The force on an object in a fluid due to the difference in pressure in the fluid acting on the area of the object

Question 2

How does a submarine change its depth in water?

Answer 2

By adjusting its weight

Question 3

For a body immersed (fully or partially) within a fluid, if weight = upthrust​

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Answer 3

The body will float

Question 4

For a body immersed (fully or partially) within a fluid, if weight > upthrust

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Answer 4

the body will sink

Question 5

For a body immersed (fully or partially) within a fluid, if weight < upthrust​

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Answer 5

The body will rise