Across
- 3. anything that occupies space and has weight
- 6. part of a circle
- 7. fall, falling motion of an object that is subject only to the force of gravity
- 8. of light, 3.0 x 1^8 m/sec (300 million meters per second) or 186 000 mi/sec
- 11. plane, a ramp or flat surface tilted from the horizontal
- 12. blocking of light from one object by another relative to an observer
- 14. having to do with the Sun, Moon, stars and the appearance of the night sky
- 17. having limits or being restricted
- 18. force of attraction between two bodies; the force of attraction between a freely falling object and the earth gives the body an acceleration of 32 ft/sec2
- 19. path followed by a projectile
Down
- 1. distance traveled divided by time
- 2. for an ellipse, one of two points located on the long axis
- 4. an observation under controlled conditions
- 5. capable of putting an object in motion
- 9. obtain a result from a different source
- 10. speed and direction of an object’s motion
- 11. speed, speed at a particular moment of time
- 13. a closed curve that looks like a flattened circle
- 15. capacity to make a change in matter (to heat to move or to change its physical form)
- 16. speed, speed measured over a period of time