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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 663 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  2. 2.True or false: opening a drawer is a push. (a) True (b) False
  3. 3.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  4. 4.True or false: closing a drawer is a push. (a) True (b) False
  5. 5.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) a rolling ball slows (c) pedalling a cycle (d) rain falls to the ground
  6. 6.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
  8. 8.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  9. 9.True or false: pushing a trolley is a pull. (a) True (b) False
  10. 10.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) magnetic force (d) muscular force
  11. 11.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
  12. 12.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
  13. 13.Which of these is caused by muscular force? (a) an apple falls down (b) a rolling ball slows (c) a magnet picks up pins (d) pedalling a cycle
  14. 14.True or false: pulling a cart is a push. (a) False (b) True
  15. 15.Which of these is caused by friction? (a) brakes stop a bicycle (b) a river flows downhill (c) a fridge magnet sticks (d) a compass needle turns
  16. 16.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  17. 17.True or false: opening a drawer is a pull. (a) False (b) True
  18. 18.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) friction (d) gravity
  19. 19.💪 Two children push a box to the right, one with 25 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  20. 20.True or false: pulling a cart is a pull. (a) True (b) False
  21. 21.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
  22. 22.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
  23. 23.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  24. 24.💪 Two children push a box to the right, one with 40 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.Which of these is caused by gravity? (a) squeezing a lemon (b) a magnet picks up pins (c) a river flows downhill (d) a fridge magnet sticks
  27. 27.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
  28. 28.Which of these is caused by muscular force? (a) a rolling ball slows (b) a compass needle turns (c) an apple falls down (d) lifting a school bag
  29. 29.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  30. 30.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 Two children push a box to the right, one with 35 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
  33. 33.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  34. 34.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  35. 35.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  36. 36.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 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.True or false: a tug of war is a push. (a) True (b) False
  39. 39.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
  40. 40.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 50 N. What is the size of the net force, in newtons?

Answer key

  1. balanced
  2. False
  3. a push
  4. True
  5. a magnet picks up pins
  6. 550
  7. change its colour
  8. 35
  9. False
  10. muscular force
  11. push or a pull
  12. magnetic force
  13. pedalling a cycle
  14. False
  15. brakes stop a bicycle
  16. to the left
  17. True
  18. muscular force
  19. 35
  20. True
  21. 15
  22. friction
  23. a push
  24. 55
  25. 90
  26. a river flows downhill
  27. friction
  28. lifting a school bag
  29. 5
  30. 46
  31. 60
  32. newton (N)
  33. a push
  34. a push
  35. 75
  36. 20
  37. a pull
  38. False
  39. muscular force
  40. 10

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