12 Questions
What is buoyancy?
The ability of an object to resist immersion in a fluid.
How can the buoyant force be explained according to Archimedes' principle?
The buoyant force is equal to the weight of the displaced fluid.
What determines whether a body sinks or floats in a fluid?
If the buoyant force is greater than the weight of the body, it floats.
Why do helium balloons float in the air?
The density of helium is less than the density of air.
How can an aluminum can float while a piece of aluminum sinks in water?
The can contains air, making its density less than water.
What property of liquids aids buoyancy by limiting the immersion of objects?
Surface tension.
What is density and how is it measured?
Density is a measure of the amount of mass in a given volume. It is measured in grams per cubic centimeter (g/cm3).
What determines whether an object floats or sinks in a liquid or gas?
An object floats if it is less dense than the liquid or gas, and sinks if it is denser.
Explain how the density of a box changes as metal balls are added to it.
As more metal balls are added to the box, its density increases.
Why can a ship made of steel float on water despite steel being denser than water?
The ship can float because the hull and chambers are filled with air, reducing the total density of the ship below that of water.
What is the density of water and how is it related to the concept of floating objects?
The density of water is 1 g/cm3. Objects float if they are less dense than water, and sink if they are denser.
In a scenario where two boxes of the same size are filled with feathers and iron respectively, which box has the greater density?
The box filled with iron has the greater density.
Test your knowledge on density and buoyancy with this quiz! Learn about how mass and volume affect the density of an object, and understand how buoyancy is related to an object's density. Explore concepts such as measuring density in grams per cubic centimeter and calculating the density of solid bodies.
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