astronomy

2. A solar measurement of magnitude or gravity
6. The ability of 2 or more waves to interact in a way that they either reinforce or cancel each other out
8. 1st Law An object at rest will stay at rest until acted upon
10. The force that gravitation occurs upon a body
13. The rate of change of velocity
14. A measure of the amount of heat in an object
15. Astronomer who built an observatory, discovered a nova, and created his own theory

1. Light The small range of the electromagnetic spectrum that human eyes perceive as light
3. Developed 3 Laws of Motion and the theory of gravitational pull
4. Elementary particles carrying a positive electric change a component of all atomic nuclei
5. a pattern that repeats itself cyclically in both time and space
7. Developed the Theory of Relativity
9. of Light Fastest possible speed
11. Italian astronomer who used a Dutch toy to make his own reflecting telescope; did not invent the telescope
12. The tendency of objects at action to stay in action and objects at rest to stay at rest