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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 13 · 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) shoes grip the floor (b) rain falls to the ground (c) rubbing hands warms them (d) a compass needle turns
  2. 2.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  3. 3.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  4. 4.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  5. 5.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  6. 6.Which of these is caused by gravity? (a) rain falls to the ground (b) brakes stop a bicycle (c) lifting a school bag (d) pedalling a cycle
  7. 7.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  9. 9.Which of these is caused by gravity? (a) a magnet picks up pins (b) an apple falls down (c) a compass needle turns (d) lifting a school bag
  10. 10.💪 A cart is pulled to the right with 45 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  11. 11.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a river flows downhill (c) a rolling ball slows (d) squeezing a lemon
  12. 12.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  13. 13.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  14. 14.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  15. 15.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  17. 17.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.💪 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 left (c) to the right
  19. 19.Which of these is caused by gravity? (a) a thrown ball comes down (b) a magnet picks up pins (c) a rolling ball slows (d) brakes stop a bicycle
  20. 20.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
  22. 22.💪 A cart is pulled to the right with 25 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  23. 23.💪 A cart is pulled to the right with 75 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  24. 24.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  25. 25.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  26. 26.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  28. 28.💪 Two children push a box to the right, one with 65 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  30. 30.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  32. 32.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.True or false: pushing a trolley is a push. (a) False (b) True
  35. 35.True or false: hitting a cricket ball is a pull. (a) True (b) False
  36. 36.True or false: pushing a swing is a push. (a) False (b) True
  37. 37.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
  38. 38.💪 Which force is at work: pedalling a cycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
  39. 39.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  40. 40.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force

Answer key

  1. a compass needle turns
  2. a push
  3. 5
  4. 10
  5. a push
  6. rain falls to the ground
  7. 43
  8. friction
  9. an apple falls down
  10. no net force
  11. squeezing a lemon
  12. a pull
  13. 5
  14. a pull
  15. 500
  16. a push
  17. 32
  18. no net force
  19. a thrown ball comes down
  20. 41
  21. balanced
  22. to the left
  23. no net force
  24. push or a pull
  25. gravity
  26. 44
  27. a pull
  28. 115
  29. to the right
  30. 51
  31. 20
  32. 130
  33. 16
  34. True
  35. False
  36. True
  37. change its colour
  38. muscular force
  39. a pull
  40. to the right

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