![Practice Questions for Final](http://s1.studyres.com/store/data/001049235_1-e0323848ce12295fa53c78dd857b666d-300x300.png)
Practice Questions for Final
... A. The fact that we live in a universe made of matter is not surprising, because antimatter has never been shown to exist for real. B. Einstein's famous equation E = mc2 tells us that energy can turn into matter, but does not tell us that it can turn into antimatter. C. During the first 0.001 second ...
... A. The fact that we live in a universe made of matter is not surprising, because antimatter has never been shown to exist for real. B. Einstein's famous equation E = mc2 tells us that energy can turn into matter, but does not tell us that it can turn into antimatter. C. During the first 0.001 second ...
FRAC TRIVIA I QUIZ - Flint River Astronomy Club
... 14. ( 1 pt.) True or False: If you were standing on the floor at the center of the lunar crater Clavius, you could not see its 16,100-ft. walls in any direction. 15. (1 pt.) What is the largest of the 20 brightest stars in actual size? 16. (1 pt.) Which constellation contains the most naked-eye star ...
... 14. ( 1 pt.) True or False: If you were standing on the floor at the center of the lunar crater Clavius, you could not see its 16,100-ft. walls in any direction. 15. (1 pt.) What is the largest of the 20 brightest stars in actual size? 16. (1 pt.) Which constellation contains the most naked-eye star ...
The Constellation Microscopium, the Microscope Microscopium is a
... uses more than one lens. The first microscope was invented by the two brothers, Hans and Zacharius Jensen, Dutch spectacle makers of Holland in 1590, who were also involved in the invention of the telescope (see below). Lacaille first showed it on his map of 1756 under the name le Microscope but Lat ...
... uses more than one lens. The first microscope was invented by the two brothers, Hans and Zacharius Jensen, Dutch spectacle makers of Holland in 1590, who were also involved in the invention of the telescope (see below). Lacaille first showed it on his map of 1756 under the name le Microscope but Lat ...
File - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... extended the apparent magnitude scale upwards to 0 and then -1 and so on. The invention and development of telescopes allowed for the discovery of stars dimmer then +6, so the scale was extended downwards, +7 and so on. In the 19th century astronomers were able to more accurately quantify the appa ...
... extended the apparent magnitude scale upwards to 0 and then -1 and so on. The invention and development of telescopes allowed for the discovery of stars dimmer then +6, so the scale was extended downwards, +7 and so on. In the 19th century astronomers were able to more accurately quantify the appa ...
Stars
... COMPOSITION OF STARS ______ 5. The band of colors produced when white light passes through a prism is a(n) a. color wheel. b. emission line. c. ultraviolet light. d. spectrum. ______ 6. A hot, solid object gives off a(n) a. continuous spectrum. b. absorption spectrum. c. emission line. d. partial sp ...
... COMPOSITION OF STARS ______ 5. The band of colors produced when white light passes through a prism is a(n) a. color wheel. b. emission line. c. ultraviolet light. d. spectrum. ______ 6. A hot, solid object gives off a(n) a. continuous spectrum. b. absorption spectrum. c. emission line. d. partial sp ...
Teaching ideas for Option E, Astrophysics
... The magnitude scale is confusing to students when they first meet it, so it is important to give many examples to make sure students understand that the smaller the magnitude the brighter the star appears to be. Students will always ask where the letters OBAFGKM for spectral classes come from. There ...
... The magnitude scale is confusing to students when they first meet it, so it is important to give many examples to make sure students understand that the smaller the magnitude the brighter the star appears to be. Students will always ask where the letters OBAFGKM for spectral classes come from. There ...
Study Guide 4 Part A Outline
... Universe is expanding The expansion started at some definite time in the past (the Big Bang)Universe expands away from every galaxy. Every galaxy would see its own version of the Hubble Law. Quasars & Active Galactic Nuclei o Quasars and other active galaxies emit large amounts of energy from re ...
... Universe is expanding The expansion started at some definite time in the past (the Big Bang)Universe expands away from every galaxy. Every galaxy would see its own version of the Hubble Law. Quasars & Active Galactic Nuclei o Quasars and other active galaxies emit large amounts of energy from re ...
Ch 28 Outline
... spectrometers, they are able to split the light into a spectrum of colors. Types of Visible Spectra Spectroscopes break light into three different types of spectra. By analyzing and comparing these different spectra, astronomers can figure out what elements make up the atmospheres of stars and plane ...
... spectrometers, they are able to split the light into a spectrum of colors. Types of Visible Spectra Spectroscopes break light into three different types of spectra. By analyzing and comparing these different spectra, astronomers can figure out what elements make up the atmospheres of stars and plane ...
Properties of Stars
... Some binaries are too close together to be resolved, you may still be able to detect the binary through the Doppler shift (in one or both stars). They must be relatively close to each other (short orbital period). If you can see both stars’ spectrums, you may be able to use Doppler shifts to measure ...
... Some binaries are too close together to be resolved, you may still be able to detect the binary through the Doppler shift (in one or both stars). They must be relatively close to each other (short orbital period). If you can see both stars’ spectrums, you may be able to use Doppler shifts to measure ...
1. Stellar Evolution – Notes Astronomers classify stars according to
... Stars above the main sequence on the H-R diagram (higher luminosity), with the same temperature as cooler main sequence stars, are larger. Also, stars that have the same luminosity as dimmer main sequence stars, but are to the left of them (hotter) on the H-R diagram, are smaller. Bright, cool stars ...
... Stars above the main sequence on the H-R diagram (higher luminosity), with the same temperature as cooler main sequence stars, are larger. Also, stars that have the same luminosity as dimmer main sequence stars, but are to the left of them (hotter) on the H-R diagram, are smaller. Bright, cool stars ...
Our Universe
... • This is not a normal surface that you could see or touch. At the event horizon, the pull of gravity becomes infinitely strong. Thus, an object can exist there for only an instant as it plunges inward at the speed of light. ...
... • This is not a normal surface that you could see or touch. At the event horizon, the pull of gravity becomes infinitely strong. Thus, an object can exist there for only an instant as it plunges inward at the speed of light. ...
E1 Introduction to the universe
... An open Universe is one that continues to expand forever. The force of gravity slows the rate of recession of the galaxies down a little bit but it is not strong enough to bring the expansion to a halt. A low density universe. A closed Universe is one that is brought to a stop and then collapses ba ...
... An open Universe is one that continues to expand forever. The force of gravity slows the rate of recession of the galaxies down a little bit but it is not strong enough to bring the expansion to a halt. A low density universe. A closed Universe is one that is brought to a stop and then collapses ba ...
Chapter 15 Surveying the Stars
... Amount of starlight that reaches Earth (energy per second per square meter) ...
... Amount of starlight that reaches Earth (energy per second per square meter) ...
Astronomy 103
... Magnitudes are commonly used by astronomers today. A decrease in magnitude by 5 multiplies the apparent brightness by 100. The most sensitive telescopes can see stars 25 magnitudes larger (fainter) than you can see with the naked eye: stars whose apparent brightness is 1010 times smaller than the d ...
... Magnitudes are commonly used by astronomers today. A decrease in magnitude by 5 multiplies the apparent brightness by 100. The most sensitive telescopes can see stars 25 magnitudes larger (fainter) than you can see with the naked eye: stars whose apparent brightness is 1010 times smaller than the d ...
The Hubble Space Telescope - the first 10 years
... • Well some stars are known to pulsate at a rate which depends on their brightness. • We can use this to calculate the distances to nearby galaxies. • In the case M100 in the Virgo cluster ...
... • Well some stars are known to pulsate at a rate which depends on their brightness. • We can use this to calculate the distances to nearby galaxies. • In the case M100 in the Virgo cluster ...
Society News - Bristol Astronomical Society
... In the west the winter constellations of Orion and Taurus are disappearing below the western horizon, only Gemini remains above the horizon beyond midnight. Gemini is rectangular in shape with the long sides representing the bodies of the celestial twins. Their heads are represented by the two brigh ...
... In the west the winter constellations of Orion and Taurus are disappearing below the western horizon, only Gemini remains above the horizon beyond midnight. Gemini is rectangular in shape with the long sides representing the bodies of the celestial twins. Their heads are represented by the two brigh ...
The Luminosity
... Fusion is a lot harder to achieve than fission, because like charges repel. If you try to shove two hydrogen nuclei together--each consisting of a single positively charged proton--they're not going to like it. The sun overcomes this by cramming everything together to a density 100 times that of wat ...
... Fusion is a lot harder to achieve than fission, because like charges repel. If you try to shove two hydrogen nuclei together--each consisting of a single positively charged proton--they're not going to like it. The sun overcomes this by cramming everything together to a density 100 times that of wat ...
c - Fsusd
... 7) A neutron star that appears to produce pulses of radio waves is called a ______. a) quasar b) binary system c) black hole d) pulsar ...
... 7) A neutron star that appears to produce pulses of radio waves is called a ______. a) quasar b) binary system c) black hole d) pulsar ...
Chapter 17 Measuring the Stars
... measure of the total power radiated by a star. Apparent brightness is how bright a star appears when viewed from Earth; it depends on the absolute brightness but also on the distance of the star: ...
... measure of the total power radiated by a star. Apparent brightness is how bright a star appears when viewed from Earth; it depends on the absolute brightness but also on the distance of the star: ...
Assignment 1
... The classic Fermi problem is “How many piano tuners are in the city?” I have done with with my introductory physics class every year since I become a professor, and we have never failed to be within 1 or 2 of the number listed in the phonebook! Let’s practice on another problem. I’ll lead you throug ...
... The classic Fermi problem is “How many piano tuners are in the city?” I have done with with my introductory physics class every year since I become a professor, and we have never failed to be within 1 or 2 of the number listed in the phonebook! Let’s practice on another problem. I’ll lead you throug ...
Star Gazing
... • The zodiacal constellations are located along the Sun’s path on Earth (Ecliptic). • The Ecliptic is also the plane of Earth’s path around the Sun. http://lifeng.lamost.org/courses/astrotoday/CHAISSON/AT301/HTML/AT30103.HTM ...
... • The zodiacal constellations are located along the Sun’s path on Earth (Ecliptic). • The Ecliptic is also the plane of Earth’s path around the Sun. http://lifeng.lamost.org/courses/astrotoday/CHAISSON/AT301/HTML/AT30103.HTM ...
Hot-plate model of stars March 14 − Observed properties of stars
... H-R plotted luminosity vs. surface temperature (1905) & discovered a surprise. ...
... H-R plotted luminosity vs. surface temperature (1905) & discovered a surprise. ...
Chapter 13 (Properties of Stars)
... 3. Sirius and its companion are almost the same temperature, yet Sirius is about 10,000x brighter than its companion. Explain why they differ so much in luminosity. 4. Explain why we presently do not have sufficient information about the distances to some of the brightest stars in the galaxy (such a ...
... 3. Sirius and its companion are almost the same temperature, yet Sirius is about 10,000x brighter than its companion. Explain why they differ so much in luminosity. 4. Explain why we presently do not have sufficient information about the distances to some of the brightest stars in the galaxy (such a ...
September 3 and 5 slides
... reasons: (1) measurements of proper motions in M101 (Adrian von Maanen) lead to ludicrous rotation speeds if M101 were as big as the Milky Way; (2) comparison of brightness of SAndromedae in M31 with Nova Persei in the Milky Way ...
... reasons: (1) measurements of proper motions in M101 (Adrian von Maanen) lead to ludicrous rotation speeds if M101 were as big as the Milky Way; (2) comparison of brightness of SAndromedae in M31 with Nova Persei in the Milky Way ...
Upsilon Andromedae
... Standard error: 0.004 Mean Vt magnitude: 4.159 Standard error: 0.003 Source of photometric data: The Bt,Vt data are median values, rather than de-censored mean values (mainly relevant for bright stars with Bt<=8.5 mag and Vt<=8.0 mag). Johnson B-V colour index: 0.541 Standard error: 0.004 Number of ...
... Standard error: 0.004 Mean Vt magnitude: 4.159 Standard error: 0.003 Source of photometric data: The Bt,Vt data are median values, rather than de-censored mean values (mainly relevant for bright stars with Bt<=8.5 mag and Vt<=8.0 mag). Johnson B-V colour index: 0.541 Standard error: 0.004 Number of ...
Malmquist bias
The Malmquist bias is an effect in observational astronomy which leads to the preferential detection of intrinsically bright objects. It was first described in 1922 by Swedish astronomer Gunnar Malmquist (1893–1982), who then greatly elaborated upon this work in 1925. In statistics, this bias is referred to as a selection bias and affects the survey results in a brightness limited survey, where stars below a certain apparent brightness are not included. Since observed stars and galaxies appear dimmer when farther away, the brightness that is measured will fall off with distance until their brightness falls below the observational threshold. Objects which are more luminous, or intrinsically brighter, can be observed at a greater distance, creating a false trend of increasing intrinsic brightness, and other related quantities, with distance. This effect has led to many spurious claims in the field of astronomy. Properly correcting for these effects has become an area of great focus.