Across
- 2. What do we define the gravitational potential energy of a pendulum when it is at the lowest point of its swing?
- 6. Displacements of matter where two waves can occupy the same space at the same time which causes a combination of two overlapping waves is called what?
- 7. The forces acting on the bob at any point include the force exerted by the string and the _________ force.
- 8. a physical environment through which a disturbance can travel
- 12. What is the mass called that is attached to a fixed string on a simple pendulum?
- 13. Measurements show that the restoring force is directly proportional to the displacement of the _______.
- 14. the number of cycles or vibrations per unit of time
- 15. When force is greater, acceleration is greater and the amount of _____ required for a single cycle should decrease.
- 17. the maximum displacement from equilibrium
- 20. a wave whose particles vibrate perpendicularly to the direction the wave is traveling
- 21. vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium
- 22. a wave pattern that results when two waves of the same frequency, wavelength, and amplitude travel in opposite directions and interfere with each other
- 23. the distance between two adjacent similar points of a wave, such as from crest to crest or from trough to trough
- 24. the highest point above the equilibrium position
- 25. a point in a standing wave, halfway between two nodes, at which the largest displacement occurs
- 27. In a pendulum the magnitude of the restoring force varies with the bob’s distance from the equilibrium position, and the magnitude of restoring force is proportional to _______.
- 30. a point in a standing wave that maintains zero displacement
Down
- 1. a superposition of two or more waves in which individual displacements on the same side of the equilibrium position are added together to form the resultant wave
- 3. One thing that affects a period for a pendulum is the change in the free-fall acceleration but there is another factor that affects the period by changing the what of the pendulum?
- 4. The quantity k is a positive constant called the __________ and the value of the _______ is a measure of the stiffness of the spring.
- 5. When a spring is stretched or compressed and then released, it __________ back and forth about its unstretched position.
- 9. The spring force and acceleration (increase/ decrease) as the mass moves toward the equilibrium position, and the speed of the mass increases.
- 10. a superposition of two or more waves in which individual displacements on opposite sides of the equilibrium position are added together to form the resultant wave
- 11. a wave whose particles vibrate parallel to the direction the wave is traveling
- 16. a wave that requires a medium through which to travel
- 18. the time that is takes a complete cycle to occur
- 19. Friction retards the motion of the vibrating mass, and the mass-spring system eventually comes to rest which is what type of effect?
- 26. Ripple waves start with a _______ which causes water on the surface near that point to move, which in turn causes points farther away to move.
- 28. As the pendulum swings past its equilibrium position, the kinetic energy decreases while the gravitational potential energy _______.
- 29. the lowest point below the equilibrium position