When a Planet Moves Closer to the Sun in an Elliptical

question 31

Multiple Choice

When a planet moves closer to the Sun in an elliptical orbit, its rotational inertia

• A) does not change because the mass of the planet is constant.
• B) gets smaller because its distance from the Sun is smaller.
• C) gets smaller because the lever arm is shorter.
• D) gets larger because the angular momentum must be conserved.
• E) gets larger because the planet has more angular acceleration.

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Definitions:

Pressure Tank Switch

A switch mechanism that activates or deactivates based on the pressure level within a storage tank.

Pilot Device

Manual controls like switches or buttons used to operate electrical equipment indirectly.

Control Coil

A component within electrical devices, such as relays or contactors, that creates a magnetic field when energized to operate switches or other control elements.

Control Circuit

A section of an electrical system that indirectly determines the operational state of another circuit's main power control.