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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 919 · 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.Which of these is caused by magnetic force? (a) a rolling ball slows (b) lifting a school bag (c) a fridge magnet sticks (d) an apple falls down
  2. 2.💪 A cart is pulled to the right with 85 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
  4. 4.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
  5. 5.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  6. 6.True or false: closing a drawer is a pull. (a) True (b) False
  7. 7.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  9. 9.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  10. 10.True or false: plucking a mango is a pull. (a) False (b) True
  11. 11.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  12. 12.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  13. 13.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  14. 14.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 75 N. What is the size of the net force, in newtons?
  15. 15.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.True or false: drawing up a well bucket is a pull. (a) True (b) False
  17. 17.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  18. 18.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) magnetic force (d) muscular force
  19. 19.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  20. 20.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.True or false: opening a drawer is a push. (a) False (b) True
  22. 22.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  23. 23.💪 A cart is pulled to the right with 90 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  24. 24.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  25. 25.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) magnetic force (d) gravity
  26. 26.💪 Two children push a box to the right, one with 30 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  27. 27.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  28. 28.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) a compass needle turns (d) shoes grip the floor
  29. 29.True or false: pushing a swing is a push. (a) False (b) True
  30. 30.💪 A cart is pulled to the right with 55 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  31. 31.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  33. 33.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rain falls to the ground (c) lifting a school bag (d) a magnet picks up pins
  34. 34.💪 Two children push a box to the right, one with 35 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  35. 35.Which of these is caused by magnetic force? (a) a compass needle turns (b) lifting a school bag (c) rain falls to the ground (d) pedalling a cycle
  36. 36.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
  37. 37.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  38. 38.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) friction (d) magnetic force
  39. 39.True or false: pulling up your socks is a push. (a) True (b) False
  40. 40.True or false: pushing a trolley is a pull. (a) True (b) False

Answer key

  1. a fridge magnet sticks
  2. to the left
  3. balanced
  4. friction
  5. to the right
  6. False
  7. gravity
  8. a pull
  9. a push
  10. True
  11. newton (N)
  12. a push
  13. to the right
  14. 5
  15. 55
  16. True
  17. 10
  18. friction
  19. a pull
  20. 2
  21. False
  22. a push
  23. to the left
  24. a pull
  25. gravity
  26. 105
  27. 35
  28. a river flows downhill
  29. True
  30. to the right
  31. 56
  32. 50
  33. rain falls to the ground
  34. 120
  35. a compass needle turns
  36. muscular force
  37. 25
  38. friction
  39. False
  40. False

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