What Can We Learn About a Star from a Life

question 48

Multiple Choice

What can we learn about a star from a life track on an H-R diagram?

• A)the star's age
• B)the surface temperature and luminosity the star will have at each stage of its life
• C)the star's current stage of life
• D)how the star's distance from Earth varies at different times in its life

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Definitions:

Amplitude

In physics, this term describes the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Frequency

The number of wave peaks per second. In sound, frequency governs the perceived pitch of the sound.

Pitched

Used to describe a speech or proposal that has been presented to an audience with the intention of persuading them.

Amplitude

In signal processing, amplitude refers to the magnitude or intensity of a signal's fluctuation or variation, often measured in terms of the signal's peak value.