STEM 8th: Orbits

2. Kepler's first principle says that at a given _____, a satellite must travel a certain speed
6. oval shape with constant sum of distance for any two points
7. A ____ orbit allows a sat-ellite to alter its orbit simply by adjusting its speed at the proper time
8. A natural satellite of the earth.
10. the curved path of a celestial object around a star or planet
11. Weather seasons occur because the Earth orbits the ___.
12. Outer space does not contain any matter and is called a ___.
14. the deep pocket of space-time “fabric” that occurs as objects move and influence one another’s gravity
15. rocket-launched spacecraft able to land and make repeated journeys to orbit
17. Most objects passing through the atmosphere move so quickly they ____ up.
18. The scientists that discovered that planet Earth rotates around the sun

1. the lowest or closest point in an orbit
3. theory that empty space is actually a “fabric” of 3-D space-time
4. Kepler's second principle says that an object moving more ____ will form an elliptical orbit
5. The special orbit in which a satellite stays above the same point on the earth’s surface.
7. The measurable feature drastically swings based on the position of the sun toward or away from the space station
9. The name of the first space shuttle orbiter
13. The faster the satellite speed, the ____ the orbit
16. the highest or farthest point in an orbit