Gravity
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. gravity
A. The vertical force exerted by a mass as a result of gravity
2. mass
B. The largest planet and the 5th from the sun
3. Galileo
C. The star our planet orbits
4. planet
D. Natural satellite that orbits the Earth
5. Heliocentric
E. Having the sun as the center
6. Earth
F. The sun with the celestial bodies that revolve around it in its gravitational field
7. Moon
G. The planet we live on
8. solarsystem
H. An area in which something acts or operates or has power or control: "the range of a supersonic jet"
9. Jupiter
I. Italian astronomer and mathematician who was the first to use a telescope to study the stars
10. sun
J. Any of the nine large celestial bodies in the solar system that revolve around the sun and shine
11. orbit
K. Force that pulls objects toward the Earth
12. weight
L. How much matter something contains