9K - Speeding Up

This crossword was created by Dr J E F Frost with EclipseCrossword by Green Eclipse Software — www.eclipsecrossword.com

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7 8             9          
                           
         
         
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13                         14
                           
               
               
             
             
       
       
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19                  
                   
     
     
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Across

6. Distance up (or down) divided by distance across on a graph (5)

7. The sum of all values divided by the number of values (7)

9. Force due to a jet, rocket or motor (6)

13. Rate of changing velocity (direction or speed) (12)

16. A rubbing force that acts in a direction opposite to an object's motion (8)

17. When the forces acting on an object are equal in size but opposite in direction (8)

19. Swirly flow in a fluid (10)

20. A force of tension between two objects (4)

21. A force of compression between two objects (4)

Down

1. Contact between a moving and another moving or stationary object (9)

2. A type of engine that works by producing a stream of fast flowing fluid (3)

3. Shaped to minimise drag forces (11)

4. Unit of distance (5)

5. Slope of a graph (8)

8. Speed in a given direction (8)

10. Rate of movement - distance travelled divided by time taken (5)

11. Friction force due to motion through a gas or liquid (4)

12. At a particular moment in time (13)

14. How far it is between two points (8)

15. Something that causes a mass to change speed or direction (5)

18. Data represented by a picture (5)

19. The fourth dimension, measured in seconds (4)


 

This crossword puzzle was created by Dr J E F Frost with EclipseCrossword. Try it today—it's free!