Science Questions
Explore questions in the Science category that you can ask Spark.E!
What is a unique geologic feature of Miranda?a. faultsb. sinuous rillesc. lava flowsd. sulfur-based volcanoese. ovoids
Sunspots locations in the Sun repeat in cycles.a. Trueb. False
Which moon orbits Pluto?a. Tritonb. Erisc. Ceresd. Oberone. Charon
Which of these planets is just 0.39 AU from the Sun?a. Mercuryb. Earthc. Marsd. Venuse. Jupiter
The ________ is the point in the Celestial Sphere that is the right above your head, while the ________ is theone below your feet.a. Nadir, Zenithb. Right ascension, declinationc. South, Northd. North, Southe. Zenith, Nadir
The circular velocity of a satellite orbiting Earth is given by . In this equation, M represents the____.a. mass of the satellite, and r the distance from Earth to the satelliteb. mass of Earth, and r is the distance from Earth to the satellitec. mass of Earth, and r the radius of Earthd. mass of the satellite, and r the distance from Earth's surface to the satellitee. mass of the satellite, and r its radius
How is Titan different from all the other Jovian satellites?a. Titan has frozen water on its surface.b. Titan has a heavily cratered surface.c. Titan has a thick atmosphere.d. Titan is the largest moon in the Solar System.e. Titan has a young, very reflective surface.
It is very dangerous to observe with the naked eye a Solar eclipse, but it is completely safe to observe directly aLunar eclipse.a. Trueb. False
A comet near the Sun whose orbit is ____ would never be near the Sun again.a. apogeeb. circularc. hyperbolicd. ellipticale. radial
The Universe consists of the Sun, its family of planets, and some smaller bodies such as moons, asteroids, andcomets.a. Trueb. False
Which spacecraft was the first to photograph Uranus in 1986?a. Voyager 2b. Cassini-Huygensc. Hubble Space Telescoped. New Horizonse. Cassini-Huygens
Since Mars's axis is tipped 25.2 degreesto its orbit. Consequently, it experiences _______.a. solar eclipsesb. extreme temperature fluctuationsc. day and nightd. aurorase. seasons
Calculate the average orbital speed, V0, of Neptune knowing that it is located at r = 30.1 AU from the Sun andthe mass of the Sun isM = 1.98 x 1030 kg. Hint: where r is the distance in meters and G = 6.67 x 10-11 m3kg-1s2.a. 10.6 km/sb. 2.8 km/sc. 90.1 km/sd. 5.4 km/se. 6.5 km/s
What does a high albedo indicate with regard to a planetary object?a. The surface is highly reflective and therefore young.b. The planetary object is still developing.c. The planet is highly active.d. The planetary object has a strong magnetic field.e. The surface is cratered and old.
There are three types of planets.a. Trueb. False
Which is a characteristic Venus shares with Earth?a. Both planets are still geologically active.b. Both planets have a uniform circulation within their atmospheres.c. Both planets have heavily cratered surfaces.d. Both planets have an ozone layer within their atmospheres.e. Both planets rotate clockwise on their axes.
What was Tycho Brahe's contribution to astronomy?a. He proved that Earth rotates on its own axis and revolves around the Sun.b. He designed the three laws of planetary motion.c. He discovered satellites around Jupiter, which proved Earth could move and keep its satellite.d. He compiled detailed observations of the positions of the Sun, Moon, and planets over a period of 20years.e. He described why each of the planets moved in uniform circular motion.
__________create structure on the Earth's surface, and __________ shapes those structures.a. Elements, fireb. Plate tectonics, erosionc. Icy meteorites, oceansd. Plants, photosynthesise. Basalt, lava
What is unique about Pluto's orbit?a. overlaps the orbit of Uranusb. the longest orbital periodc. eccentricity is zerod. its length shifts over timee. high eccentricity
Which star has the largest diameter?a. red giantb. regular giantc. main sequenced. white dwarfe. supergiant
