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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 238 · 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 40 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  2. 2.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) gravity (d) muscular force
  3. 3.💪 Two children push a box to the right, one with 40 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: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
  5. 5.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) wind (d) friction
  6. 6.True or false: pulling up your socks is a pull. (a) True (b) False
  7. 7.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  8. 8.True or false: a tug of war is a push. (a) False (b) True
  9. 9.💪 A cart is pulled to the right with 70 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  10. 10.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  11. 11.💪 Two children push a box to the right, one with 40 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
  13. 13.💪 A cart is pulled to the right with 95 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
  14. 14.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
  15. 15.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  16. 16.💪 Two children push a box to the right, one with 65 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  17. 17.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  19. 19.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  20. 20.Which of these is caused by muscular force? (a) a river flows downhill (b) squeezing a lemon (c) a fridge magnet sticks (d) an apple falls down
  21. 21.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 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?
  23. 23.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 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) no net force (b) to the right (c) to the left
  27. 27.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.Which of these is caused by friction? (a) lifting a school bag (b) a magnet picks up pins (c) a thrown ball comes down (d) a rolling ball slows
  30. 30.True or false: plucking a mango is a push. (a) True (b) False
  31. 31.True or false: drawing up a well bucket is a pull. (a) True (b) False
  32. 32.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) gravity (d) muscular force
  33. 33.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  34. 34.💪 Two children push a box to the right, one with 25 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 friction? (a) lifting a school bag (b) rain falls to the ground (c) brakes stop a bicycle (d) an apple falls down
  36. 36.True or false: kicking a football is a push. (a) True (b) False
  37. 37.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  38. 38.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
  40. 40.Which of these is caused by muscular force? (a) an apple falls down (b) a thrown ball comes down (c) rubbing hands warms them (d) pedalling a cycle

Answer key

  1. 5
  2. friction
  3. 70
  4. magnetic force
  5. gravity
  6. True
  7. gravity
  8. False
  9. to the left
  10. 10
  11. 130
  12. gravity
  13. to the right
  14. gravity
  15. push or a pull
  16. 75
  17. 430
  18. 60
  19. a pull
  20. squeezing a lemon
  21. 8
  22. 20
  23. 57
  24. 380
  25. 45
  26. to the right
  27. 150
  28. 50
  29. a rolling ball slows
  30. False
  31. True
  32. muscular force
  33. 25
  34. 110
  35. brakes stop a bicycle
  36. True
  37. a pull
  38. 85
  39. magnetic force
  40. pedalling a cycle

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