PHYS 1403 Week 3 Quiz | Assignment Help | Central Texas College
- Central Texas College / PHYS 1403
- 27 Apr 2021
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- Science Assignment Help / Physics Assignment Help
PHYS 1403 Week 3 Quiz | Assignment Help | Central Texas College
• Question 1
Calculate the distance to a star in parsecs that has a known parallax of 0.02 arcseconds. Enter the number only. The distance would be ________ pc.
• Question 2
If a binary star system is orientated in such a way that one of the stars passes in front of the other (and vice versa) as viewed from Earth astronomers can use this data to determine stars:
• Question 3
The part of the Hertzsprung–Russell diagram where most stars spend the bulk of their lives burning hydrogen into helium is known as the:
• Question 4
Astronomers study the orbits of stars that orbit the same center of mass (binary star systems). By analyzing these orbits astronomers can determine each star ________.
• Question 5
Variable stars such as Cepheid and RR Lyrae stars can be used to accurately determine a star _____________.
• Question 6
One evening you observe a star at night that appears to be very bright as compared to others. From this you can determine:
• Question 7
True or False: A stars Apparent magnitude is the same as a star Absolute magnitude:
• Question 8
Astronomers typically measure the color of stars at multiple wavelengths. The difference in the magnitude of the stars as measured in two parts of the spectrum is known as its:
• Question 9
The Hertzsprung–Russell diagram in its most basic form is a graph that plots the relationship between stars:
• Question 10
Arrange the following Apparent Magnitude values from brightest to dimmest:
• Question 11
Two stars are observed to have two different colors. One appears Red and one appears Blue. The star with the higher temperature is the ____________ star.
• Question 12
The rate at which a star or other object emits electromagnetic energy into space is called its:
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