1_ 3_ 4_ 10_ 11_ 17_ 20_ 24_ x171_ x172

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					                                                                                        Astronomy 10 am


1, 3, 4, 10, 11, 17, 20, 24, x171, x172

    1. D

    3. B

    4. A

    10. The gaps in the asteroid belt, they are caused by collisions with each other and outside forces.

    11. The asteroids caught at Jupiter’s Lagrange points, the are going along Jupiter’s orbit.

    17. Because at it core there is a solid frozen mixture of dust and ice.

    20. Because of the jets of gas that were ejecting as a stream of colors behind the comet, in blue and

    24. in a museum collection

    X171. 20-40^6 or 6 times the mass of the sun

    X172. Gamma ray burst are more powerful than supernova.

Key Terms:

    1. Kirkwood gaps- the gaps in the asteroid belt
    2. Stable lagrange points- where the gravitational forces of the sun and Jupiter work together to
        hold asteroids in orbit at these locations
    3. Apollo asteroids- types of asteroids names after Apollo, known as several asteroids orbiting each
    4. Kuiper belt- named after the American astronomer Gerard Kuiper, who first proposed its
        existence in 1951.
    5. Oort Cloud- Comets that have a spherical distributed around the sun
    6. Nuclei- Solid comet bodies
    7. long period comets- they have one rotation around the sun then leave the inner solar system
    8. short period comets- stay for around 200 years before leaving the inner solar system
    9. Meteoroids- rocky, and metallic debris smaller than asteroids scattered throughout the solar
    10. Meteor- the glowing gas creates the trail we see and the meteoroid becomes a meteor when
        entering into the earths atmosphere

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