Across
- 1. of or relating to or used in the production of electricity by waterpower
- 4. the tendency of something to stay in rest or motion
- 6. a form of energy transferred by a difference in temperature
- 8. the inward force on a body moving in a curved path around another body
- 10. energy stored by a body or system by virtue of its position
- 11. distance between successive crests of a periodic disturbance
- 13. the rate of doing work
- 15. a manifestation of energy
- 17. the force of attraction between all masses in the universe
- 18. influence that results in motion, stress, etc. when applied
- 20. the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
- 23. the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system
- 25. a brief event in which two or more particles come together
- 28. electric current is directly proportional to voltage and inversely proportional to resistance; I = E/R
- 29. transfer of heat caused by molecular motion in liquid or gas
- 31. an apparatus in which an object is mounted to swing freely
- 32. a movement up and down or back and forth
- 37. potential energy that is stored when a body is deformed
- 38. a twisting force
- 39. a magnet in the form of a bar with magnetic poles at each end
- 40. the product of a body's mass and its velocity
- 41. the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
- 42. the maximum displacement of a periodic wave
- 44. hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel
- 45. action and reaction are equal and opposite
- 46. the act of moving something from one form to another
- 48. the number of occurrences within a given time period
Down
- 2. energy transmitted in the form of rays or waves or particles
- 3. the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
- 5. a rate of increase of velocity
- 6. the principle that (within the elastic limit) the stress applied to a solid is proportional to the strain produced
- 7. motion that recurs over and over and the period of time required for each recurrence remains the same
- 9. a quantity that has magnitude and direction
- 12. an engine that causes a bladed rotor to rotate
- 14. serve as the medium for sending something
- 16. first law a body remains at rest or in motion with a constant velocity unless acted upon by an external force
- 19. the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
- 21. the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity
- 22. the mechanical energy that a body has by virtue of motion
- 24. distance traveled per unit time in one direction
- 26. a simple machine giving a mechanical advantage on a fulcrum
- 27. the ideal motion of something subject only to gravity
- 30. a wheel with a groove in which a rope can run
- 33. the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory
- 34. something solid that can be pushed between two things
- 35. the vertical force exerted by a mass as a result of gravity
- 36. the resistance when a body is moved in contact with another
- 38. concerned with heat and other forms of energy
- 43. change in the apparent frequency of a wave as observer and source move toward or away from each other
- 47. a group of independent elements comprising a unified whole