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When an object is _________ to a bigger body its rotation is determined by the latter.a. Simultaneousb. Spherically shapedc. Tidally-lockedd. Convectionally-draggede. Geosynchronous
Stars are said to become alive when theya. help forming other stars.b. rapidly expand.c. begin nuclear fusion in their cores.d. are able to create planets.e. become a protostar.
In the example we worked out in class, how long was Neptune's orbital period?Hint: Neptune is located at 30.1 AU from the Sun.a. 165 yearsb. 175 yearsc. 170 yearsd. 200 yearse. 160 years
Which of these elements has been present since the beginning of the Universe?a. Iridiumb. Carbonc. Heliumd. Hydrogene. Gold
A star's absolute visual magnitude depends only on the star's ______ and _____.a. temperature; massb. distance; magnitudec. temperature; densityd. diameter; masse. diameter; density
Which list is in order of increasing size?a. planet, galaxy, solar system, star, Universeb. star, planet, galaxy, Universe, solar systemc. planet, star, solar system, galaxy, Universed. star, planet, galaxy, solar system, Universee. planet, star, solar system, Universe, galaxy
What unit is used to measure wavelengths?a. degreesb. nanometerc. photonsd. pixelse. arc second
A rock is drop from point A at a height, h = 2 meters. The rock is then dropped from point B at a height of 4meters, what relation between the gravitational forces due to Earth, F, at point A and point B? Hint:.a. FB= FAb. FB= 4FAc. FA = 4FBd. FB= 2FAe. FB= FA/2
Solar eclipses are completely random events.a. Trueb. False
Why was Voyager 2 so important?a. Because it came after Voyager 1.b. Because it provided us with information about Jupiter, Saturn, and their moons.c. Because it proved how power can be managed more efficiently.d. Because it provided us with information about Uranus, Neptune, and the outer Solar System.e. Because it took detailed pictures of Jupiter.
The orbital speed of Neptunea. Increases when it is the closest to the Sun in its orbit.b. Decreases when it is closest to the Sun in its orbit.c. Increases when it is the farthest from the Sun in its orbit.d. Eventually it is going to surpass the Sun's scape velocity.e. Is constant in its orbit.
A(n) ____ orbit is one where the orbiting object is always above the same location on Earth's surface.a. hyperbolicb. closedc. ellipticald. parabolice. geosynchronous
Order the apparent magnitudes of the Sun, the Moon, and a 60 W lightbulb from brightest to dimmest.a. -12, -26, - 60b. -12, 26, 60c. -26, -12, 60d. 60, 26, -12e. 60, -26, 12
What evidence is there to prove Jovian planets have a liquid interiors?a. They all are oblateb. They have ringsc. Their magnetic fieldsd. Their tilted axese. Their turbulent atmosphere
With no water and a thick, slow-moving lower atmosphere, there is little erosion on Venusa. Trueb. False
The energy of a photon is proportional to its frequency.a. Trueb. False
Charon is a moon with an extreme elliptical orbit.a. Trueb. False
Cosmic rays are made of photons.a. Trueb. False
A ____ is produced by ionized gas carried away from the comet by solar wind.a. dust tailb. chondrulec. comad. gas taile. nucleus
Earth's magnetic field protects us from the dangerous ultraviolet radiation.a. Trueb. False

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