Motion And Measurement Of Distances

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Across
  1. 4. fastest mode of transport
  2. 7. comparing an object with a standard unit
  3. 8. carry people and goods from one place to another
  4. 10. vehicles having internal combustion engine
  5. 11. its invention brought revolution in transport
Down
  1. 1. also called forearm length
  2. 2. also called footstep
  3. 3. length of the space between two points
  4. 5. every measurement consists of a .........and a unit
  5. 6. also called external combustion engine
  6. 7. S.I. unit of measuring length
  7. 9. first mode of transport