Lesson 5- Buoyancy

Question 1

Define Buoyancy

Answer 1

Buoyancy is the tendenay of an object in a fluid to float or sink due to density differences with its surroundings.

Question 2

Explain how gravity affects Buoyancy?

Answer 2

The force of gravity pulls objects down and the buoyant force pushes objects up.

Question 3

When will an object rise in a fluid? When will an object sink in a fluid? When will an object float in place in a fluid?

Answer 3

An object will float in a fluid when the buoyant force on the object is greater than the force of gravity.
An object will sink, in a fluid when the buoyant force on the object is less than the force of gravity
An object will float in a fluid when the buoyant force on the object is equal to the force of gravity