Question

How does information in paragraph 9 refine the central idea that atomic clocks are better at determining a spacecraft's distance from earth than other types of clocks?

A.
It sets up a cause-and-effect scenario that shows how quartz clocks led to atomic clocks.
B.
It sets up a sequence of events that gives a history of how clocks have been developed over time, leading to atomic clocks.
C.
It sets up a problem-and-solution scenario that shows how the problem with quartz became a problem for all atomic clocks.
D.
It sets up a compare-and-contrast scenario that shows why atomic clocks are better than quartz clocks.

Answer 1

Paragraph 9 highlights the advantages of atomic clocks over quartz clocks by comparing their capabilities and emphasizing atomic clocks' accuracy and ability to adjust for time dilation, crucial for spacecraft distance measurements and GPS technology.

Step-by-step explanation:

The information in paragraph 9 serves to refine the central idea that atomic clocks are superior to quartz clocks for determining a spacecraft's distance from Earth. Specifically, the answer to how paragraph 9 refines this idea is option D: It sets up a compare-and-contrast scenario that shows why atomic clocks are better than quartz clocks. This compares the capabilities of atomic clocks in terms of their precision and ability to account for time dilation effects due to gravity, which is crucial for applications such as GPS technology. Atomic clocks leverage the predictable oscillations of atoms like cesium, allowing them to keep time with remarkable accuracy and adjust for the relativistic effects observed in high-flying aircraft and satellites.

Answer 2

D.

It sets up a compare-and-contrast scenario that shows why atomic clocks are better than quartz clocks.

Step-by-step explanation:

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