A Balloon Is Filled with Helium Gas

question 70

Multiple Choice

A balloon is filled with helium gas. For the question(s) that follow, select the letter of the balloon diagram that corresponds to the given
change in conditions.
-The balloon is put into a chamber whose pressure is less than the atmospheric pressure and at atmospheric temperature.

• A)A
• B)B
• C)C
• D)A and B
• E)B and C

---

Definitions:

Constant Speed

Maintaining a uniform speed regardless of load or other external conditions.

Rotating Magnetic Field

A magnetic field that rotates in space within an electrical machine, such as an induction motor, enabling motion of the rotor.

RPM Speed

A measure of the rotational speed of a mechanical component, denoted in revolutions per minute.