Across
- 4. a body with finite mass that can be treated as having negligible size, and internal structure
- 8. a resistance encountered when one body moves relative to another body with which it is in contact
- 9. The fraction of radiation absorbed at a given wavelength
- 10. a connection between an electrical circuit or device and the earth, which is at zero potential
- 12. a unit for comparing two currents, voltages, or power levels, equal to one-tenth of a bel
- 15. the property of a system that enables it to store electric charge
- 16. a device that diverges or converges a beam of electromagnetic radiation, sound, or particles
- 18. the point through which the resultant of the gravitational forces on a body always acts
- 19. the product of a body's mass and its velocity
- 20. any device for converting mechanical energy into electrical energy by electromagnetic induction, esp a large one as in a power station
Down
- 1. The square root of the sum of the squares of the real numbers in a *complex number
- 2. A unit of heat, equal to 4.1868 joules
- 3. a deviation in the direction of a wave at the edge of an obstacle in its path
- 5. the force that sets a body in motion or that tends to resist changes in a body's motion
- 6. The principle that the pressure of a gas varies inversely with it's volume at a constant pressure
- 7. the tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external force
- 11. any baryon that is not a nucleon
- 13. a measure of this capacity, expressed as the work that it does in changing to some specified reference state. It is measured in joules (SI units)
- 14. Zero of thermodynamic temperature(0 Kelvin)
- 17. the splitting of an atomic nucleus into approximately equal parts, either spontaneously or as a result of the impact of a particle usually with an associated release of energy