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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 684 · 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.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  2. 2.Which of these is caused by friction? (a) pedalling a cycle (b) shoes grip the floor (c) lifting a school bag (d) a river flows downhill
  3. 3.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
  5. 5.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  6. 6.True or false: hitting a cricket ball is a pull. (a) False (b) True
  7. 7.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  9. 9.Which of these is caused by magnetic force? (a) lifting a school bag (b) rain falls to the ground (c) brakes stop a bicycle (d) a fridge magnet sticks
  10. 10.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  11. 11.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
  12. 12.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) gravity (d) friction
  13. 13.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  14. 14.💪 Two children push a box to the right, one with 20 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  16. 16.True or false: a tug of war is a push. (a) False (b) True
  17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  18. 18.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  19. 19.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
  21. 21.True or false: plucking a mango is a push. (a) False (b) True
  22. 22.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  23. 23.💪 A cart is pulled to the right with 50 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  24. 24.True or false: pressing a doorbell is a pull. (a) True (b) False
  25. 25.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  27. 27.True or false: pushing a trolley is a pull. (a) True (b) False
  28. 28.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) magnetic force (c) friction (d) muscular force
  29. 29.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) friction (c) muscular force (d) gravity
  30. 30.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a magnet picks up pins (c) an apple falls down (d) rain falls to the ground
  31. 31.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  32. 32.Which of these is caused by gravity? (a) a thrown ball comes down (b) a fridge magnet sticks (c) brakes stop a bicycle (d) lifting a school bag
  33. 33.True or false: drawing up a well bucket is a push. (a) False (b) True
  34. 34.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  35. 35.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  36. 36.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  37. 37.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  38. 38.Which of these is caused by gravity? (a) an apple falls down (b) brakes stop a bicycle (c) pedalling a cycle (d) a compass needle turns
  39. 39.True or false: closing a drawer is a push. (a) False (b) True
  40. 40.True or false: pressing a doorbell is a push. (a) False (b) True

Answer key

  1. a pull
  2. shoes grip the floor
  3. 13
  4. 10
  5. a push
  6. False
  7. push or a pull
  8. a pull
  9. a fridge magnet sticks
  10. 110
  11. 5
  12. gravity
  13. muscular force
  14. 105
  15. newton (N)
  16. False
  17. a push
  18. a push
  19. 25
  20. balanced
  21. False
  22. 40
  23. to the left
  24. False
  25. 80
  26. to the left
  27. False
  28. magnetic force
  29. magnetic force
  30. a magnet picks up pins
  31. a push
  32. a thrown ball comes down
  33. False
  34. friction
  35. a push
  36. 25
  37. a pull
  38. an apple falls down
  39. True
  40. True

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