Across
- 4. Change in direction of a wave when it enters a different medium
- 6. Speed in a particular direction
- 8. Mass per unit volume
- 9. Force acting per unit area
- 10. A push or pull that can change an object's motion
- 11. The product of an object's mass and velocity
Down
- 1. Number of waves passing a point per second
- 2. Force that opposes motion between surfaces
- 3. Force that attracts objects towards each other
- 5. Rate of change of velocity
- 7. A complete path through which electric current can flow