Time Dilation: an Astronaut in an Inertial Reference Frame Measures

question 42

Multiple Choice

Time dilation: An astronaut in an inertial reference frame measures a time interval Δt between her heartbeats. What will observers in all other inertial reference frames measure for the time interval between her heartbeats?

• A) Δt
• B) more thanΔt
• C) less than Δt
• D) The answer depends on whether they are moving toward her or away from her.

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Definitions:

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Brain

The complex organ located in the skull, responsible for controlling most functions of the body and mind, including thought, memory, emotion, and motor skills.

Transitional Sleep

A phase of sleep that serves as a bridge between wakefulness and deeper stages of sleep, often characterized by light sleep.

Newborns

Infants in the very first weeks of life, characterized by rapid physical growth and development.