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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 349 · 40 questions
TalentJR

Engineer's tip (Add same way, subtract opposite): Push moves away, pull moves towards; force is measured in newtons (N). Same direction: add. Opposite directions: bigger − smaller, towards the bigger. Weight (N) ≈ mass (kg) × 10.

NameDateTime takenScore ___ / 40
  1. 1.True or false: pressing a doorbell is a pull. (a) True (b) False
  2. 2.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  4. 4.True or false: plucking a mango is a push. (a) True (b) False
  5. 5.True or false: pushing a trolley is a push. (a) True (b) False
  6. 6.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  7. 7.True or false: pushing a swing is a pull. (a) True (b) False
  8. 8.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.True or false: pushing a swing is a push. (a) True (b) False
  10. 10.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  11. 11.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  12. 12.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  13. 13.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  14. 14.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  15. 15.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
  16. 16.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its colour (d) change its shape
  17. 17.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  19. 19.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  20. 20.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  21. 21.💪 A cart is pulled to the right with 50 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  22. 22.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  25. 25.True or false: kicking a football is a pull. (a) False (b) True
  26. 26.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
  27. 27.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a river flows downhill (c) an apple falls down (d) a compass needle turns
  28. 28.True or false: pulling a cart is a pull. (a) True (b) False
  29. 29.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  30. 30.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
  31. 31.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
  32. 32.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Two children push a box to the right, one with 15 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.True or false: plucking a mango is a pull. (a) True (b) False
  36. 36.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
  37. 37.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  38. 38.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  39. 39.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  40. 40.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push

Answer key

  1. False
  2. 22
  3. a pull
  4. False
  5. True
  6. newton (N)
  7. False
  8. 60
  9. True
  10. 50
  11. friction
  12. 80
  13. gravity
  14. 5
  15. gravity
  16. change its colour
  17. 23
  18. 20
  19. a push
  20. 75
  21. to the left
  22. 29
  23. a push
  24. gravity
  25. False
  26. push or a pull
  27. a compass needle turns
  28. True
  29. a pull
  30. friction
  31. magnetic force
  32. 58
  33. 20
  34. 390
  35. True
  36. gravity
  37. a pull
  38. 65
  39. 5
  40. a push

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