Across
- 2. Recognized that he could predict the motion of planets as they moved in elliptical, not circular, orbits.
- 3. His discoveries formed the basis for classical mechanics.
- 4. Distance, temperature, pressure, and speed are _______________ quantities.
- 7. How far a moving object has traveled during a time interval.
- 11. Causes an object to move around a circular path.
- 12. States that for any right-angled triangle, the square of the hypotenuse (the longest side), is equal to the sum of the squares of the other two sides (legs).
- 13. The curved path of a projectile.
- 15. The distance traveled combined with the direction, or change in position.
- 16. The distance traveled in an amount of time.
- 19. He developed relativistic mechanics to explain the motion of high-speed objects.
- 21. The study of how things move.
- 23. The change in velocity in a given amount of time.
- 24. Any quantity that consists of magnitude, or size, only.
- 25. Movement along a circular path.
Down
- 1. Have both magnitude and direction.
- 5. The two-dimensional motion of any flying object whose path is determined by the influence of an external force only, such as gravity.
- 6. A property of a moving system that is equal to its velocity times its mass.
- 8. Displacement, velocity, acceleration, and force are ______________ quantities.
- 9. The rate at which an object’s position changes.
- 10. A coordinate system which we can use to describe the motion of an object.
- 14. The apparent reversal of the planets in their orbits.
- 17. The study of motion.
- 18. His experiments led him to the conclusion that all objects in a vacuum, regardless of mass, would fall at the same rate.
- 20. All objects fall at the same rate, if there is no air resistance.
- 22. A portion of the larger motion