Astronauts in an Orbiting Spacecraft Feel "Weightless" Because

question 31

Multiple Choice

Astronauts in an orbiting spacecraft feel "weightless" because

• A) they are also massless.
• B) they are too far from Earth to experience its gravity.
• C) the astronauts and the spacecraft are in free-fall around Earth.
• D) All of the above

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Definitions:

Anatomical Differences

Variations in the structure of organisms' bodies that distinguish between species, genders, or individuals.

Body Mechanics

The use of correct posture and movement in daily activities to prevent injury and maintain bodily health.

Good Posture

This refers to the alignment of the body in a position that reduces stress on the muscles, spine, and ligaments during movement or while stationary.

Fibrous Disk

A type of cartilaginous joint found between the vertebrae in the spine that acts as a shock absorber.