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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 633 · 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.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  2. 2.True or false: kicking a football is a pull. (a) True (b) False
  3. 3.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  4. 4.💪 Two children push a box to the right, one with 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Two children push a box to the right, one with 75 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  6. 6.True or false: pushing a trolley is a pull. (a) False (b) True
  7. 7.💪 Two children push a box to the right, one with 70 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  8. 8.True or false: pulling up your socks is a pull. (a) True (b) False
  9. 9.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  10. 10.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  11. 11.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  14. 14.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) friction (d) magnetic force
  15. 15.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  16. 16.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) a compass needle turns (d) shoes grip the floor
  17. 17.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) magnetic force (d) gravity
  18. 18.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
  19. 19.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) gravity (d) muscular force
  20. 20.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
  21. 21.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  22. 22.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  23. 23.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
  24. 24.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.True or false: a tug of war is a push. (a) True (b) False
  26. 26.True or false: drawing up a well bucket is a push. (a) True (b) False
  27. 27.💪 Two children push a box to the right, one with 50 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Two children push a box to the right, one with 30 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  29. 29.Which of these is caused by gravity? (a) pedalling a cycle (b) lifting a school bag (c) rain falls to the ground (d) a compass needle turns
  30. 30.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  31. 31.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 90 N. What is the size of the net force, in newtons?
  32. 32.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  33. 33.True or false: pulling a cart is a push. (a) True (b) False
  34. 34.True or false: pulling up your socks is a push. (a) True (b) False
  35. 35.💪 A cart is pulled to the right with 95 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  36. 36.Which of these is caused by friction? (a) a compass needle turns (b) lifting a school bag (c) a rolling ball slows (d) a magnet picks up pins
  37. 37.Which of these is caused by magnetic force? (a) lifting a school bag (b) pedalling a cycle (c) a fridge magnet sticks (d) rubbing hands warms them
  38. 38.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
  39. 39.True or false: closing a drawer is a push. (a) False (b) True
  40. 40.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left

Answer key

  1. 70
  2. False
  3. gravity
  4. 95
  5. 140
  6. False
  7. 105
  8. True
  9. a push
  10. 120
  11. 220
  12. 16
  13. 30
  14. magnetic force
  15. a push
  16. shoes grip the floor
  17. gravity
  18. gravity
  19. muscular force
  20. gravity
  21. a pull
  22. a push
  23. newton (N)
  24. 310
  25. False
  26. False
  27. 80
  28. 130
  29. rain falls to the ground
  30. a push
  31. 5
  32. a push
  33. False
  34. False
  35. to the right
  36. a rolling ball slows
  37. a fridge magnet sticks
  38. friction
  39. True
  40. no net force

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