Test: ACT Science

A scientist observes the motion of stars, planets, and other objects in deep space through a high-powered telescope. She observes that these objects all appear to be moving away from the Earth and graphs her results comparing their velocities, in kilometers per second, and their proper distance, in megaparsecs.

 

 

Hubble_graph

26.

A star is measured to have a velocity of

How far away is it?

5 megaparsecs

200 megaparsecs

4.5 megaparsecs

3.5 megaparsecs

26/40 questions

62%
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