A parcel of air is buoyant when:

Question

BlackTom AI · Accepted Answer

Consider the concept of buoyancy in air parcels. 
Option 1: 'The parcel is cooler than the surrounding environment' would make the parcel denser than its surroundings, causing it to tend to sink rather than rise; thus this choice describes a non-buoyant or negatively buoyant scenario. 
Option 2: 'The parcel is at the same temperature as the environment' implies neutral buoyancy where there is no buoyant force driving upward or downward; in this case the parcel would neither rise nor fall due to thermal differences alone. 
Option 3: 'The parcel is warmer than the surrounding environment' is consistent with positive buoyancy: a warmer parcel is less dense than cooler surrounding air, so it experiences an upward buoyant force and tends to rise. This aligns with standard explanations of buoyancy in atmospheric contexts. 
Option 4: 'The air inside the parcel is saturated' speaks to humidity or moisture content, not directly to buoyancy. Saturation affects humidity and possibly condensation, but on its own does not determine whether the parcel is buoyant unless temperature and density relationships are also considered; hence it is not the defining criterion for buoyancy in typical dry-air buoyancy discussions.

W25 MET D010 20Y Weather And Climate Processes Quiz #3

A parcel of air is buoyant when:

View Explanation

Log in for full answers

Similar Questions

A ping-pong ball has an average density of 0.140 g/cm3 and a diameter of 3.80 cm. What force would be required to keep the ball completely submerged under water?

If an object weighing 50N displaces a volume of water with a weight of 10 N, what is the buoyant force on the object?

An object sinks when it displaces a volume of liquid that has a weight

A glass of ice water is filled to the brim with water; the ice cubes stick up above the water surface. After the ice melts, which is true?

What are the ways to create buoyancy in seawater? Pick 2

A block of wood with dimensions of length = 1.6m, width = 0.4m and height = 1m, is placed in water, what is the buoyant force? The density of water is 1000kg/m3. Answer to 1 decimal places and only put in the numerical value. Do not write the unit in your answer.

Why does a hot air balloon rise when the air inside it is heated?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler