motion and time

12345678
Across
  1. 3. The standard unit of mass
  2. 6. a clock that uses a swinging weight to measure time
  3. 7. The standard unit of time
  4. 8. 100 years
Down
  1. 1. One uniform unit of measurement
  2. 2. The number of oscillations per sec
  3. 4. Formula = D ÷ T
  4. 5. It measures time by the position of the sun