An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 18, Problem 10MC
To determine
The color of a relatively hot star.
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Astronomers use two basis properties of stars to classify them. These two properties are luminosity and surface temperature. Luminosity usually refers to the brightness of the star relative to the brightness of our sun. Astronomers will often use a star’s color to measure its temperature. Stars with low temperatures produce a reddish light while stars with high temperatures shine with a brilliant blue—white light. Surface temperatures of stars range from 3000o C to 50,000o C. When these surface temperatures are plotted against luminosity, the stars fall into groups. Using the data similar to what you will plot in this activity, Danish astronomer Ejnar Hertzsprung and United States astronomer Henry Norris Russell independently arrived at similar results in what is now commonly referred to as the HR Diagram.
Procedures:1. Read the Background Information
2. On the graph paper provided. Place a number next to the star according to its luminosity and surface temperature listed in the data…
Which of the following stars has the highest surface temperature? Treat the star as a blackbody.
a)A dim red star
b)A bright red star
c)A bright orange star
d)A dim orange star
e)A bright yellow star
The luminosity of the Sun is 3.83 × 1026 W. This energy comes from fusion during which some matter is turned into energy. How many tons of matter are destroyed each second to maintain this luminosity? Bear in mind that 1 ton has a mass of 907 kg and that 1 W = 1 J/s.
Amount of matter destroyed each second = _____ tons
Chapter 18 Solutions
An Introduction to Physical Science
Ch. 18.1 - How is the position of a star designated in the...Ch. 18.1 - Prob. 2PQCh. 18.1 - Prob. 18.1CECh. 18.2 - Prob. 1PQCh. 18.2 - Prob. 2PQCh. 18.3 - Prob. 1PQCh. 18.3 - Prob. 2PQCh. 18.4 - Prob. 1PQCh. 18.4 - Prob. 2PQCh. 18.5 - Prob. 1PQ
Ch. 18.5 - Prob. 2PQCh. 18.6 - Prob. 1PQCh. 18.6 - Prob. 2PQCh. 18.7 - Prob. 1PQCh. 18.7 - Prob. 2PQCh. 18.7 - Prob. 18.2CECh. 18 - Prob. AMCh. 18 - Prob. BMCh. 18 - Prob. CMCh. 18 - Prob. DMCh. 18 - Prob. EMCh. 18 - Prob. FMCh. 18 - Prob. GMCh. 18 - Prob. HMCh. 18 - Prob. IMCh. 18 - Prob. JMCh. 18 - Prob. KMCh. 18 - Prob. LMCh. 18 - Prob. MMCh. 18 - Prob. NMCh. 18 - Prob. OMCh. 18 - Prob. PMCh. 18 - Prob. QMCh. 18 - Prob. RMCh. 18 - Prob. SMCh. 18 - Prob. TMCh. 18 - Prob. UMCh. 18 - Prob. VMCh. 18 - Prob. WMCh. 18 - Prob. XMCh. 18 - Prob. YMCh. 18 - Prob. ZMCh. 18 - Prob. AAMCh. 18 - What is the point on the celestial sphere...Ch. 18 - Prob. 2MCCh. 18 - Prob. 3MCCh. 18 - Prob. 4MCCh. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - What force keeps the all stars from flying apart?...Ch. 18 - Prob. 9MCCh. 18 - Prob. 10MCCh. 18 - Prob. 11MCCh. 18 - Prob. 12MCCh. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15MCCh. 18 - Prob. 16MCCh. 18 - Prob. 17MCCh. 18 - Prob. 18MCCh. 18 - Prob. 19MCCh. 18 - Prob. 20MCCh. 18 - The apparent change of the position of a star due...Ch. 18 - Prob. 2FIBCh. 18 - Prob. 3FIBCh. 18 - Prob. 4FIBCh. 18 - Prob. 5FIBCh. 18 - Prob. 6FIBCh. 18 - Prob. 7FIBCh. 18 - Prob. 8FIBCh. 18 - Prob. 9FIBCh. 18 - Prob. 10FIBCh. 18 - Prob. 11FIBCh. 18 - Prob. 12FIBCh. 18 - Prob. 13FIBCh. 18 - Prob. 14FIBCh. 18 - Prob. 15FIBCh. 18 - Prob. 16FIBCh. 18 - Prob. 17FIBCh. 18 - Prob. 18FIBCh. 18 - Prob. 19FIBCh. 18 - Prob. 20FIBCh. 18 - Prob. 1SACh. 18 - Prob. 2SACh. 18 - Prob. 3SACh. 18 - What is the vernal equinox, and what does it have...Ch. 18 - Prob. 5SACh. 18 - Prob. 6SACh. 18 - Prob. 7SACh. 18 - Prob. 8SACh. 18 - Prob. 9SACh. 18 - Prob. 10SACh. 18 - Prob. 11SACh. 18 - Prob. 12SACh. 18 - Prob. 13SACh. 18 - Prob. 14SACh. 18 - Prob. 15SACh. 18 - Prob. 16SACh. 18 - Prob. 17SACh. 18 - Prob. 18SACh. 18 - Prob. 19SACh. 18 - Prob. 20SACh. 18 - Prob. 21SACh. 18 - Prob. 22SACh. 18 - Prob. 23SACh. 18 - Prob. 24SACh. 18 - Prob. 25SACh. 18 - Prob. 26SACh. 18 - Prob. 27SACh. 18 - Prob. 28SACh. 18 - Prob. 29SACh. 18 - Prob. 30SACh. 18 - Prob. 31SACh. 18 - Prob. 32SACh. 18 - Prob. 33SACh. 18 - Prob. 34SACh. 18 - Prob. 35SACh. 18 - Prob. 36SACh. 18 - Prob. 37SACh. 18 - Prob. 38SACh. 18 - Prob. 39SACh. 18 - State three experimental findings that support the...Ch. 18 - Prob. 41SACh. 18 - Prob. 42SACh. 18 - Prob. 1VCCh. 18 - Prob. 1AYKCh. 18 - Prob. 2AYKCh. 18 - Prob. 3AYKCh. 18 - If you went outside on a clear night to locate...Ch. 18 - Prob. 5AYKCh. 18 - Prob. 6AYKCh. 18 - What major factor determines the future of the...Ch. 18 - Find the distance in parsecs to the star Altair,...Ch. 18 - The bright star Sirius has a parallax angle of...Ch. 18 - Calculate the number of seconds in a year (365...Ch. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - If Hubbles constant had a value of 75 km/s/Mpc,...
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- A star is often described as “moving” on an HR diagram; why is this description used and what is actually happening with the star?arrow_forwardHertzsprung-Russell Diagram Blue or blue white White Vellow Red orange Red Superglants Beleigeurse Maln Sequence Aldebaran Glants Suno Aipho Centoun S Sinus B White Dwarfs 50,000 20,000 10.000 6,000 5,000 3,000 Surface Temperature ("C) Most of the stars shown on the diagram are classified as which type of star? O white dwarf O main sequence O red giant super giant Brightnessarrow_forwardHertzsprung-Russell Diagram Bhue or blue white White Vellow Red-orange Red ORigel Superglants Beteignune Main Sequence Aldebaran Glants Sun Alpho Centour B Sinus B White Dwarfs 50.000 20,000 10,000 Surface Temperature ('C) 6.000 5,000 3.000 Most of the stars shown on the diagram are classified as which type of star? O white dwarf O main sequence O red giant O super giant Brightness Increasing-arrow_forward
- Hertzsprung-Russell Diagram Blue White Yellow Red-orange Red Beteigruse Aldebaran Glants White Dwarfs 50.000 20,000 10,000 5.000 3,000 Surface Temperature ('C) Which star listed below is the brightest? O Sun O Sirius B O Betelgeuse O Rigel e0. buseanuarrow_forwardWhat is the significance of the color of a star? O The color tells how far away the star is O The color reveals the temperature (and often the size) of the star O The color is not scientifically important O The color tells the relative motion of the star to Earth (toward/away)arrow_forwardIf a star has a surface temperature of 18,000 K (1.80 ✕ 104 K), at what wavelength (in nm) will it radiate the most energy? Is this a cool or hot star? (Give your answer relative to the Sun.)arrow_forward
- Hertzsprung-Russell Diagram Blue or blue-white White Yellow Red orange Red Superglants Beleigese Main Sequene Aldenaran Glants Suno Aipho CetorE Sinus B White Dwarfs 50,000 20,000 10.000 6,000 5,000 3,000 Surface Temperature (C) Which star listed below is the brightest? Sun O Sirius B O Betelgeuse O Rigel Brightnessarrow_forwardA star such as our Sun will eventually evolve to a “red giant” star and then to a “white dwarf” star. A typical white dwarf is approximately the size of Earth, and its surface temperature is about 2.4 × 104 K. A typical red giant has a surface temperature of 3.2 × 103 K and a radius ~90000 times larger than that of a white dwarf. Take the radius of the red giant to be 6 × 1010 m. What is the average radiated power per unit area of the red giant?_________W/m2 What is the average radiated power per unit area of the white-dwarf?________W/m2 What is the total power radiated by the red giant? _________W What is the total power radiated by the white dwarf? ________W Please show full work! Thank you!arrow_forwardQuestion 32 Consider three Main Sequence stars, an O tar, an F star and a K star, each with an apparent magnitude of 2. Which star is the most luminous? They're all the same luminosity. The O star The F star The K star Question 33 Consider three Main Sequence stars, an O star, an F star and a K star, each with an apparent magnitude of 2. Which star appears the brightest in the night sky? The O star The F star O The K star O They all appear the same. Please answer botharrow_forward
- If a star has a surface temperature of 20,000 K (2.00 × 104 K), at what wavelength will it radiate the most energy?arrow_forwardHertzsprung-Russell Diagram Blue or blue-white White Yellow Red-orange Red O Rigel Superglants Belekge Main Sequence Aldergran Glants SunO Alpho Contoun B Sirius B White Dwarts 50,000 20.000 10.000 Surface Temperature (C) 6,000 5.000 3,000 What is the color of the stars shown on the diagram that have the highest surface temperature? O red O yellow blue O white Brightness Increasing O O Oarrow_forwardA star has a measured radial velocity of 300 km/s. If you measure the wavelength of a particular spectral line of Hydrogen as 657.18 nm, what was the laboratory wavelength (in nm) of the line? (Round your answer to at least one decimal place.) nm Which spectral line does this likely correspond to? Balmer-alpha (656.3 nm) Balmer-beta (486.1 nm) Balmer-gamma (434.0 nm) Balmer-del ta (410.2 nm)arrow_forward
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