physics

123456789
Across
  1. 1. - has magnitude but no direction
  2. 5. - display has hands and is often not very precise
  3. 8. y2 -y1 divided by x2-x1
  4. 9. - repetitive motion or vibration
Down
  1. 1. distance divided by time
  2. 2. change in velocity
  3. 3. mass divided by volume
  4. 4. bob - a mass(usually lead) hanging from a string to define
  5. 6. display shows numbers and is often precise
  6. 7. - has magnitude and direction