Across
- 4. The combination of waves when they meet, forming a resultant wave.
- 8. An SI prefix meaning one million (10⁶).
- 10. A unit formed by combining base units using multiplication or division.
- 12. Making a reasonable approximate value without exact measurement.
- 14. The force applied per unit cross-sectional area of a material.
- 16. An SI prefix meaning one millionth (10⁻⁶).
Down
- 1. The spreading of waves when they pass through a gap or around an obstacle.
- 2. A quantity that has both magnitude and direction.
- 3. A fundamental unit that is not derived from any other units.
- 5. Restricting the vibrations of a transverse wave to one plane.
- 6. The range within which the true value of a measurement is likely to lie.
- 7. A travelling disturbance that transfers energy without transferring matter.
- 9. The number of complete waves passing a point each second.
- 11. An SI prefix meaning one thousand (10³).
- 13. A quantity that has magnitude only and no direction.
- 15. The extension of a material divided by its original length.