Across
- 5. an energy resource that is easily replaced by natural methods
- 8. the rate of doing work
- 10. a measurable quantity that consists of magnitude only
- 11. a simple machine that consists of a rigid bar that turns about a pivot point
- 14. pulling force that is transmitted through a rope,chain, or similar object
- 15. how far an object moves during a time interval
- 17. energy used to turn turbine blades that are attached to generators
- 21. law that states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the mass
- 22. the number of waves or cycles that occurs per second
- 24. the amount by which a simple machine multiplies an input force to produce an output force
- 26. simple machine that consists of a wheel and axle system with a groove around the perimeter of the wheel where a rope moves around as it rotates
- 27. the lowest point on a wave
- 29. a push or pull on an object
- 30. a fuel that has formed from the remains of plants and animals that lived in the past
- 33. a simple machine that consists of a plane whose opposite ends are at different heights
- 38. time interval for one complete cycle of periodic motion
- 40. law that states that for every action force there is an equal and opposite reaction force
- 42. a measurable quantity with both magnitude and direction
- 43. energy produced by nuclear reactions
- 45. a vector quantity that describes a change in position
- 47. law that states that objects at rest remain at rest and objects in motion continue in a straight line unless acted on by another force
- 50. electrical energy generated by the movement of water
Down
- 1. simple machine consisting of a wheel with a rod running through its axis that acts as the pivot point
- 2. simple machine that consists of a wheel with teeth on its perimeter that mesh with similar teeth of other gears to do work
- 3. the highest point on a wave
- 4. energy produced by the sun
- 6. a field force that acts between the masses of any two objects
- 7. an increase in the amplitude of vibration due to additional wave input
- 9. motion that repeats itself in equal time intervals
- 12. a vector quantity indicating the rate at which an object's position changes
- 13. the perceived change in the frequency of a wave due to the motion of the waves source or reciever
- 16. an energy resource that is not replaced naturally
- 18. chemical potential energy obtained from renewable organic matter
- 19. a contact force that works against the motion of objects trying to move past each other
- 20. a basic mechanical device that changes the magnitude, direction, or distance traveled of the force when doing work
- 23. machine that combines two or more simple machines
- 25. maximum displacement from the equilibrium position
- 28. stored energy that can be used later
- 31. a scalar quantity indicating the rate at which an object moves
- 32. the study of how things move
- 34. the energy transferred to a system by a net external force when it acts on the system to move it
- 35. a force that acts only between objects that are touching
- 36. reducing the amplitude of periodic motion by applying a force that works against the motion
- 37. a force that acts between objects that are not touching
- 39. the study of motion
- 41. a property of a moving system that is equal to its velocity times its mass
- 44. energy an object possess due to its motion
- 46. the branch of physics that studies forces and how they can change an objects motion
- 48. the rate of change in velocity
- 49. the combining of waves where they overlap