Across
- 6. a point where destructive interference consistently occurs
- 9. a component used to reverse the electrical connection between a stationary external circuit and a rotation coil every half rotation
- 13. a vector quantity equal to the change in momentum
- 14. the spread of a wave around an obstacle or through a gap
- 15. the change in direction of a wave moving between two different media
- 17. a type of collision where kinetic energy is conserved
- 18. a point where constructive interference consistently occurs
- 19. the process by which the amplitude of an oscillation increases when forced oscillations match the natural frequency
Down
- 1. the addition of overlapping waves in the same medium
- 2. the distance between identical points on a wave
- 3. a device that uses electromagnetic induction to transfer power from one circuit to another
- 4. the splitting of white light into its constituent colours due to different refractive indices for different frequencies
- 5. a standing wave with a frequency equal to an integer multiple of the fundamental frequency
- 7. any object that gravitationally orbits another body
- 8. the magnitude of the maximum variation of any quantity with a changing value
- 10. the rate of change of displacement with time
- 11. a point in a medium of a transverse wave where particles have maximum positive displacement
- 12. a region of space in which each point is subject to a non-contact force
- 16. a force that resists the relative motion of two surfaces that are in contact