Across
- 3. S.I. unit for power; equivalent to joule/sec.
- 6. The number of protons in an atomic nucleus
- 8. The process in which heat is absorbed
- 10. The distance traveled by light through empty space in one year, it is equal to 9.46 x 1012 km.
- 12. The bending of light from its straight line path when it travels from one medium to another.
- 13. motion The continuous random motion of solid microscopic particles when suspended in a fluid medium due to the consequence of ongoing bombardment by atoms and molecules.
- 14. The number of oscillations completed in 1 second by an oscillating body.
- 15. Unit of potential difference, equivalent to joule/coulomb.
- 16. A body continues in a state of rest or of uniform motion in a straight line unless it is acted upon by an external (unbalanced) force.
- 18. The energy possessed by a body due to its motion, it is equal to ½ mv2, where m is the mass and v is the speed of the body
- 20. One of the hypothetical basic particles, having charges whose magnitudes are one-third or two-third of the charge on an electron.
Down
- 1. The time during which half the number of atoms in the element disintegrate.
- 2. the region around a magnet where its magnetic force is experienced by other magnetic objects.
- 4. A quanta of energy in light wave; the particle associated with light.
- 5. An electrical current which always flows in one direction.
- 7. PV = nRT
- 9. The gravitational attraction at the surface of a planet or other celestial body.
- 11. The unit of work and energy, 1J =
- 17. The distance traveled by a body per unit of time.
- 19. a unit of heat equal to 4.184 Joules