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ASTR 101: EXAM 1
Suppose you have a 100 W lightbulb that you leave turned on for one minute how much energy does it use |
6000 joules |
Earth is farthest from the sun in July in closest to the sun in January during which northern hemisphere season is earth moving fastest and its orbit |
Winter |
New and show that Kepler's laws are ________ |
Natural consequences of the law of universal gravitation |
You observe a full moon rising at sunset what we see at midnight |
A full moon high in the sky. |
Why is NASA set reset orbiters to Mars (such as Mars Renaissance orbiter) on trajectories that require them to skim through Marcys atmosphere before settling into their final Orbits |
It saves money because the spacecraft uses at atomosperic dried to slow down rather than needing to carrying a field to slow by firing rocket engines |
Which of the following telescopes would benefit most from adaptive optics |
The keck I telescope on Mauna Kea |
What space probe Voyager to pass by Saturn, it's speed increased (but not due to firing it's engines). What must have happened? |
Saturn must have lost a very tiny bit of its orbital energy |
Betelgeuse is the bright red star representing the left shoulder of the constellation Oriana. All the following statements about Betelgeuse are true. Which one can infer from its red color? |
It's surface is cooler than the surface of the sun |
Mars has two moons that are most similar in character to |
Two small astroids |
Suppose that the sunshine can size but that it's master mean the same. What would happen to the orbit of the earth? |
Earths orbit would be unaffected |
The planets number travel in a straight line at the orbit the sun. According to Newton's second law of motion, this must mean that __________
|
A forces acting on the planets |
The planets number travel in a straight line at the orbit the sun. According to Newton's second law of motion, this must mean that __________ |
A forces acting on the planets |
Which of the following conditions lead you to see in absorption line spectrum from a cloud of gas and interstellar space |
The cloud is cool and lies between you and I hot star |
The planets number travel in a straight line at the orbit the sun. According to Newton's second law of motion, this must mean that __________ |
A forces acting on the planets |
Which of the following conditions lead you to see in absorption line spectrum from a cloud of gas and interstellar space |
The cloud is cool and lies between you and I hot star |
Suppose you're facing north and you see the big dipper close to the northern horizon, with Polaris in the little dipper above it. Where will you see the big dipper in six hours?
|
To the right of Polaris that is 90° counterclockwise from its current position |
The planets number travel in a straight line at the orbit the sun. According to Newton's second law of motion, this must mean that __________ |
A forces acting on the planets |
Which of the following conditions lead you to see in absorption line spectrum from a cloud of gas and interstellar space |
The cloud is cool and lies between you and I hot star |
Suppose you're facing north and you see the big dipper close to the northern horizon, with Polaris in the little dipper above it. Where will you see the big dipper in six hours? |
To the right of Polaris that is 90° counterclockwise from its current position |
Imagine another solar system with the star of the same mass as the sun. Supposed to planet with the mass twice that of earth (2MEarth) Orbitz a distance of one AU from the start. What is the orbital period of this planet |
One year |
The suns path as you'd from the equator is highest in the sky on ________
|
The spring and fall equinoxes |
The suns path as you'd from the equator is highest in the sky on ________ |
The spring and fall equinoxes |
Consider an Atom of oxygen in which the nucleus contains eight protons and neutrons. If it is doubly ionized, what is the charge of the oxygen ion and how many electrons remain an ion? |
Charge equals +2 and number of remaining electrons equal six |
Astronomers infer that the universe is expanding because distant galaxies all appear to |
Be moving away from us, with more distant ones moving faster |
Astronomers infer that the universe is expanding because distant galaxies all appear to |
Be moving away from us, with more distant ones moving faster |
Suppose we look at two galaxies galaxy one is twice as far away as galaxy two. In that case |
We are seeing galaxy one as it looked at an earlier time in the history of the universe and galaxy two |
An angle of one arcsecond is |
Less than what the miss of a human hair held at arms length |
An angle of one arcsecond is |
Less than what the miss of a human hair held at arms length |
Which of the following is not a reason why telescopes tend to be built on mountain tops that are relatively far from cities in arm regions with dry climates |
The Panera mountaintops make the glass and telescope Mirrors less suspectible to warping |
Laboratory measurement show hydrogen produces a spectral lines of a wink of a wavelength of 486.1 nm. A particular spectrum shows the same hydrogen line at wavelength of 486.0 mm. What can we conclude |
The star is moving toward us |
Laboratory measurement show hydrogen produces a spectral lines of a wink of a wavelength of 486.1 nm. A particular spectrum shows the same hydrogen line at wavelength of 486.0 mm. What can we conclude |
The star is moving toward us |
Which of the following statements is true of green grass |
It absorbs Red light and reflex greenlight |
Suppose you're listening to a radio station that brown Christ a frequency of 97 MHC. Which of the following statements is true |
The radio waves from the radio station are causing electrons in your radios intended to move up and down 97 million times each second |
How does a 12 month lunar calendar different from our twelve-month solar calendar |
It has about 11 fewer days |
That astrology practice by those who cast predictive horoscopes can be tested by |
Comparing how often the predictions come true to what would be expected by pure chance |
That astrology practice by those who cast predictive horoscopes can be tested by |
Comparing how often the predictions come true to what would be expected by pure chance |
Which of the following statements about the celestial sphere is not true |
"Celestial sphere" is another name for our universe |
Suppose you drop a 10 pound weight in a 5 pound weight on the moon, both from the same height at the same time. What will happen? |
Both will hit the ground at the same time |
The Chandra x-ray Observatory must operate in space because |
X-rays did not penetrate earths atmosphere |
The Chandra x-ray Observatory must operate in space because |
X-rays did not penetrate earths atmosphere |
When traveling north from United States into Canada, you will see the Northstar Polaris getting |
Higher in the sky |
Which of the following is not consistent with the major hallmarks of science |
Science consists of proven theories that are understood to be true explanation that reality
|
If we imagine the history of the universe compressed into one year dinosaurs become extinct |
Yesterday morning |
Penis has a higher average surface temperature the Mercury. Question why? |
Because it surfaces he did buy an extreme greenhouse effect |
Which of the following represents a case in which you're not accelerating |
Driving in a straight line at 60 mph |
Which of the following represents a case in which you're not accelerating |
Driving in a straight line at 60 mph |
Which of the following best explains why earths orbital period in rotation period are the same |
Faster, but I don't friction for the rotation period Until it match the orbital period. |
Suppose that you have to small photographs of the moon. Although both look the same at small size, when you blow them up to a poster size one of them still look sharp while the other one becomes fuzzy and grainy looking. Which of the following statements is true? |
The want to look sharp at large-size has better smaller angular resolution the one that looks |
Gamma Ray's have a very small |
Wavelength |
Gamma Ray's have a very small |
Wavelength |
Which of the following best describes the origin of Ocean Tides on earth |
Tides are caused by the difference in the force of gravity Exerted by the moon across the sphere of year |
If we observe one agile planet to be read shifted and opposite edge to be blueshifted what can we conclude about the planet
|
The planet is rotating |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it? |
Einstein's theory of relativity has been tested and verified thousands of times |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth
|
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it? |
Einstein's theory of relativity has been tested and verified thousands of times |
When did humans learn earth is not the center of the universe |
Within the past 500 years |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it?
|
Einstein's theory of relativity has been tested and verified thousands of times |
When did humans learn earth is not the center of the universe |
Within the past 500 years |
Within the past 500 years |
Astroids orbit the sun well, it's just for randomly around in the Oort Cloud |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it? |
Einstein's theory of relativity has been tested and verified thousands of times |
When did humans learn earth is not the center of the universe |
Within the past 500 years |
Which of the following is not a real difference between asteroids and comets |
Astroids orbit the sun well, it's just for randomly around in the Oort Cloud |
But despite all of the evidence, it actually is not rotating in orbiting the sun. Would you be hypothetical observations none of them are real would be inconsistent with our sunset review of the solar system |
We discover a small planet be on Saturn that rises in the west and set an east each day |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it? |
Einstein's theory of relativity has been tested and verified thousands of times |
When did humans learn earth is not the center of the universe |
Within the past 500 years |
Which of the following is not a real difference between asteroids and comets |
Astroids orbit the sun well, it's just for randomly around in the Oort Cloud |
But despite all of the evidence, it actually is not rotating in orbiting the sun. Would you be hypothetical observations none of them are real would be inconsistent with our sunset review of the solar system |
We discover a small planet be on Saturn that rises in the west and set an east each day |
Which of the following best describes a set of conditions under which archeoastronomers would conclude that an agent structure was used for astronomical purposes |
The structure has holes in the ceiling that allow viewing the passage of constellations that figure prominently in the cultures full car, and many other structures built by the same culture have ceiling was placed in the same way |
Imagine another solar system with the star more massive than the sun. Supposed planet with the same mass as earth orbits as a distance of one AU from the start. How would the planets year or orbital period compared to earth's year |
The planets year would be shorter than Earth |
Which planet listed below has the most extreme seasons |
Uranus |
Only one of the statements below uses the term theory and it's correct scientific sense. Which one is it? |
Einstein's theory of relativity has been tested and verified thousands of times |
When did humans learn earth is not the center of the universe |
Within the past 500 years |
Which of the following is not a real difference between asteroids and comets |
Astroids orbit the sun well, it's just for randomly around in the Oort Cloud |
But despite all of the evidence, it actually is not rotating in orbiting the sun. Would you be hypothetical observations none of them are real would be inconsistent with our sunset review of the solar system |
We discover a small planet be on Saturn that rises in the west and set an east each day |
Which of the following best describes a set of conditions under which archeoastronomers would conclude that an agent structure was used for astronomical purposes |
The structure has holes in the ceiling that allow viewing the passage of constellations that figure prominently in the cultures full car, and many other structures built by the same culture have ceiling was placed in the same way |
Which of the following scenarios and both energy that we would typically calculate with Einstein's formula E=mc2? |
A small amount of the hydrogen and a nuclear bomb becomes energy as fusion converts the hydrogen to helium |
Suppose you're in an elevator that is traveling upward at a constant speed. How does your weight compared to your normal way on the ground |
It is the same |
How are galaxies important to our existence |
Galaxies recycle material from one generation of the stars to the next and without recycling we could not exist |
Imagine on elands they should crashed on the earth. Which statement would most likely be true |
It would crash in the ocean |
Supposed to stars are you going to call in every way for example same distance, say mass, same temperature, same chemical composition, and same speed relative to earth except that one star rotates faster than the other. spectroscopically how could you tell the stars apart |
Defense rotating star has wider spectral cool lines |
Which of the following statements about the thermal radiation is always true |
A hot object him it's more radiation per unit surface area Then a cool object |
Where is our solar system located within the Milky Way galaxy |
Roughly halfway between the center and the edge of the visible desk of the galaxy |
Where is our solar system located within the Milky Way galaxy
|
Roughly halfway between the center and the edge of the visible desk of the galaxy |
All of the following statements are true. Which one explains the reason that there is not a solar eclipse at every new Moon |
The orbital playing at the moon is tilted slightly by about 5° today ecliptic plane |
How did the speed at which we are meeting with earths rotation in orbit compared to the speeds of more familiar objects |
Most people around the axis faster than a commercial jet travels, and earths orbit carries us around the sun faster than the space shuttle orbits Earth |
How does our staring distance from the sun affect our seasons |
It doesn't… It's orbital distance please no significant role in the seasons |
You think ideas discussed in your textbook, in what sense are we "star stuff?" |
Nearly every item from which we are made was once inside of a star |
Suppose the photon was a frequency of 300 million hurts what is its wavelength |
1 m |
Supposed earth axis tilt significantly greater than its current 23.5°, but Earths rotation period An orbital orbital Were unchanged. Which statement below would not be true |
The length of each season (for example the number of days from the summer solstice to the fall equinox) would be significantly longer than it is now |
Which of the following best describes the origin of ocean tides on earth |
Tires are caused by the difference in the force of gravity exerted by the moon across the spear there |