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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 598 · 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 gravity? (a) squeezing a lemon (b) a rolling ball slows (c) a river flows downhill (d) shoes grip the floor
  2. 2.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.True or false: pushing a trolley is a pull. (a) True (b) False
  4. 4.💪 Two children push a box to the right, one with 50 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Two children push a box to the right, one with 35 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 A cart is pulled to the right with 40 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
  7. 7.💪 Two children push a box to the right, one with 40 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  9. 9.True or false: closing a drawer is a pull. (a) False (b) True
  10. 10.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 85 N. What is the size of the net force, in newtons?
  11. 11.💪 Two children push a box to the right, one with 60 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 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) to the right (b) no net force (c) to the left
  13. 13.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  14. 14.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a compass needle turns (c) a rolling ball slows (d) an apple falls down
  15. 15.True or false: plucking a mango is a pull. (a) True (b) False
  16. 16.True or false: plucking a mango is a push. (a) False (b) True
  17. 17.Which of these is caused by gravity? (a) a thrown ball comes down (b) squeezing a lemon (c) a rolling ball slows (d) lifting a school bag
  18. 18.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) squeezing a lemon (c) an apple falls down (d) a rolling ball slows
  19. 19.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  20. 20.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  21. 21.💪 A cart is pulled to the right with 60 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
  22. 22.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) gravity (d) friction
  25. 25.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  26. 26.Which of these is caused by friction? (a) pedalling a cycle (b) rain falls to the ground (c) a magnet picks up pins (d) shoes grip the floor
  27. 27.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) muscular force (d) gravity
  28. 28.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  29. 29.True or false: a tug of war is a push. (a) False (b) True
  30. 30.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  31. 31.True or false: kicking a football is a pull. (a) True (b) False
  32. 32.💪 A cart is pulled to the right with 50 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  33. 33.💪 Two children push a box to the right, one with 60 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  36. 36.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
  37. 37.💪 Two children push a box to the right, one with 65 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  39. 39.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) magnetic force (d) muscular force

Answer key

  1. a river flows downhill
  2. 28
  3. False
  4. 85
  5. 80
  6. no net force
  7. 85
  8. a push
  9. False
  10. 10
  11. 125
  12. to the right
  13. a push
  14. an apple falls down
  15. True
  16. False
  17. a thrown ball comes down
  18. a fridge magnet sticks
  19. gravity
  20. 30
  21. to the right
  22. 24
  23. a pull
  24. friction
  25. a pull
  26. shoes grip the floor
  27. magnetic force
  28. a pull
  29. False
  30. no net force
  31. False
  32. to the left
  33. 80
  34. 280
  35. a pull
  36. gravity
  37. 145
  38. a push
  39. 530
  40. gravity

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