Data Cards
This object has a diameter of 1,390,000 million km, and a distance from the sun of 0. Name this object.
Sun
Why are Mass and Diameter not allowed to be used as 2 different pieces of evidence for identifying Celestial Objects?
They are the same piece of evidence. When Mass increases, Diameter also increases. When Mass decreases, Diameter also decreases.
Name one property that is NOT strong evidence for identifying Celestial Objects.
Atmosphere, Gravity, Rotation Period, Year of Discovery
Name one way that moons are different from dwarf planets.
1. Moons orbit a planet (no or low orbital period) while DPs orbit the sun
2. Moons and DPs are similar sizes but moons are ALWAYS smaller than the planet they orbit
3. Moons are found at the same distance as a planet while DPs are found in the asteroid belt/ or past the GPs in the Kuiper belt.
OBJECT 67: Mass (1024 kg) = 0.9; Diameter (km) = 11,000; Orbital Period (days)= 278.
1. Identify this type of object
2. Give it a distance number from the sun that would be accurate. (in million km)
TP. Distance could be anywhere between 45 million km--300 million km
This type of object is the only type of celestial object that has a perihelion date
comet
These are the most dense objects in our solar system that are orbiting close to the sun.
Terrestrial Planets
Comets have a ___________ ______, which means the day they are closest to the sun. (must say it correctly)
perihelion date
What are 2 differences on the data cards between Asteroids and Comets?
Comets are less massive and have a smaller diameter than asteroids.
Comets have a perihelion date and asteroids do not.
Comets distance from the sun varies greatly, while Asteroids are found in between the TP and GP or past the GP.
This PLANET has a density of 5.5g/cm^3, an orbital period of 365 days, and a distance from the sun of 149.6 million km. Give me the Planet’s name.
Earth (ways to tell, density = rocky planet, orbital period = year)
Put these objects in order from MOST to LEAST massive: Terrestrial Planets, Comets, Gas Planets, Asteroids, Moons
Gas Planets, Terrestrial Planets, Moons, Asteroids, Comets
What is the difference between orbital period and rotation period?
Orbital Period: How long it takes something to go around another object (the sun)
Rotation Period: How long it takes an object to spin on its axis
Why can't we show both Size and Distance of the solar system in the same model?
If we were showing size, the objects would be way to close together.
Which of these objects is a Moon? How can you tell? (must give 1 reason)
OBJECT A: Mass (10^24 kg) = 0.13; Distance From the Sun (million km)= 1,433.5; Orbital Period (days)= ___
OBJECT B: Mass (10^24 kg) = 0.01; Distance From the Sun (million km)= 2,300; Orbital Period (days)= 90,411
OBJECT C: Mass (10^24 kg) = 568; Distance From the Sun (million km)= 1,433.5; Orbital Period (days)= 10,747
Object A: (distance from the sun= same as Object C, but smaller mass; No orbital period listed)
Densities of gas planets are LESS THAN _____g/cm^3, but terrestrial planets have densities that are larger than that. Tell me the number and explain why this is true.
2g/cm^3 (or something else that works)
Gas is less dense than solid rock, so terrestrial planets have higher densities.
A dead giveaway for identifying moons is when one property on the data card is often a very low number OR it's not listed at all. Which property is it, and how does that prove it's a moon?
Orbital Period (moons orbit a planet before the sun. If the number is there, it's low because it takes less time to orbit a planet than the sun itself)
Ms. Floerke’s dog phoebe is named after the only moon of a planet that orbits backwards? What gas planet does the moon “Phoebe” orbit?
Saturn
Which of these objects is Jupiter? How can you tell? (must give 1 reason)
OBJECT A: Mass (10^24 kg) = 568; Distance From the Sun (million km)= 1,433.5; Orbital Period (days)= 10,747
OBJECT B: Mass (10^24 kg)= 1,898; Distance From the Sun (million km)= 778.6; Orbital Period (days): 4,331
OBJECT C: Mass (10^24 kg)= 0.642; Distance From the Sun (million km)= 227.9; Orbital Period (days): 687
Object B: (distance from the sun= closer of the gas planets listed; biggest gas planet listed; orbital period is closer of the gas planets listed.)
Where are dwarf planets found in our solar system? Must name all possible locations.
1. Between 228mil km - 778 mil km (in the asteroid belt)
2. Past 4,400 (past the GP)
Put these objects in order from CLOSEST to FARTHEST distance from the sun: Terrestrial Planets, Gas Planets, Asteroids, Dwarf Planets.
(2 of these objects are used twice)
1. TPs 2. Asteroids and DPs 3. GPs 4.DPs and Asteroids
Name 2 of the 4 Galilean Moons of Jupiter.
Ganymede, Callisto, Io, Europa