science

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Across
  1. 4. Almost all daily activities involve force such as opening a can of food,_________ a switch and opening a door
  2. 6. Elastic force existwhen a material is _____________ or compressed
  3. 7. Force is a vector quantity that has _________ and direction
  4. 8. 1 kg equals to ________
  5. 11. Spring balance operates based on the principle of spring ________
  6. 13. Gravitational force causes all object that are thrown __________ to fall back to earth
  7. 16. The ________of an object is defined as gravitational force acting on it
  8. 17. Magnitude is the quantity or value of a _________
  9. 19. ________ force is produced when an object is in contact with a surface
  10. 20. Based on situation 1, a book that remains still on the tablee experiences gravitational force known as _________
Down
  1. 1. Force is measured by ________
  2. 2. Based on situation 1, a reaction force called normal force will exist in the ___________ direction
  3. 3. Newton's third law states that there is a reaction force of the same ____________
  4. 5. Newton's third law stayes that for evry ______ force there is a reaction force
  5. 7. The aim for experiment 8.2 is to ________force
  6. 9. Force is a pull or a ________ upon an object
  7. 10. Gravitational force is the force that points towards the centre of the _______
  8. 12. What is the S.I unit for force
  9. 14. Force may exist in various forms such as gravitational force,normal force,frictional force,elastic force and ___________ force
  10. 15. What do we need to do with spring balance
  11. 18. Frictional force is the force that resist _____________ between two surfaces with each other