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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 364 · 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: pulling up your socks is a pull. (a) False (b) True
  2. 2.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  3. 3.💪 Two children push a box to the right, one with 5 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) friction (d) muscular force
  5. 5.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  6. 6.Which of these is caused by gravity? (a) a compass needle turns (b) a river flows downhill (c) a rolling ball slows (d) pedalling a cycle
  7. 7.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) friction (c) muscular force (d) gravity
  8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  9. 9.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  10. 10.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  11. 11.True or false: hitting a cricket ball is a pull. (a) True (b) False
  12. 12.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  13. 13.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  14. 14.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) lifting a school bag (c) a fridge magnet sticks (d) rain falls to the ground
  15. 15.💪 A cart is pulled to the right with 85 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  16. 16.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  17. 17.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) muscular force (d) magnetic force
  18. 18.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  19. 19.True or false: drawing up a well bucket is a pull. (a) False (b) True
  20. 20.Which of these is caused by friction? (a) a thrown ball comes down (b) a rolling ball slows (c) a river flows downhill (d) an apple falls down
  21. 21.True or false: pushing a trolley is a pull. (a) False (b) True
  22. 22.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  23. 23.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  24. 24.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  25. 25.True or false: pushing a swing is a push. (a) True (b) False
  26. 26.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
  27. 27.True or false: hitting a cricket ball is a push. (a) True (b) False
  28. 28.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 85 N. What is the size of the net force, in newtons?
  29. 29.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) litre (L) (d) second (s)
  30. 30.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  31. 31.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  32. 32.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  33. 33.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  34. 34.💪 Two children push a box to the right, one with 50 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.💪 Two children push a box to the right, one with 20 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  37. 37.Which of these is caused by gravity? (a) a thrown ball comes down (b) rubbing hands warms them (c) pedalling a cycle (d) shoes grip the floor
  38. 38.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
  39. 39.💪 A cart is pulled to the right with 90 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  40. 40.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled

Answer key

  1. True
  2. a pull
  3. 35
  4. friction
  5. muscular force
  6. a river flows downhill
  7. magnetic force
  8. a pull
  9. to the right
  10. 35
  11. False
  12. a push
  13. gravity
  14. lifting a school bag
  15. to the right
  16. 35
  17. muscular force
  18. a push
  19. True
  20. a rolling ball slows
  21. False
  22. gravity
  23. a push
  24. a pull
  25. True
  26. gravity
  27. True
  28. 10
  29. newton (N)
  30. a push
  31. push or a pull
  32. a push
  33. 5
  34. 55
  35. 580
  36. 55
  37. a thrown ball comes down
  38. magnetic force
  39. to the right
  40. balanced

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