Across
- 3. substance with crystals that vibrate very fast, at a precise rate
- 6. a weight hung from a string , that completes one to-and-fro motion in same interval of time
- 8. time taken by a pendulum for one to-and-fro motion
- 9. standard unit of length in SI system
Down
- 1. quantities like lenght , weight , temperature , time , speed etc that can be measured and called ___________
- 2. compaprison of unknown and fixed quantity of the same kind
- 4. gives speed of moving vehicle directly in km/hr
- 5. gives distance travelled by the car in km
- 6. distance covered in unit time
- 7. metal ball hung to a string in a simple pendulum