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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 592 · 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.💪 Two children push a box to the right, one with 60 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) friction (d) gravity
  3. 3.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  4. 4.💪 Two children push a box to the right, one with 35 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  6. 6.💪 Two children push a box to the right, one with 20 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  8. 8.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) magnetic force (d) gravity
  9. 9.True or false: closing a drawer is a push. (a) True (b) False
  10. 10.Which of these is caused by friction? (a) pedalling a cycle (b) a river flows downhill (c) brakes stop a bicycle (d) squeezing a lemon
  11. 11.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.💪 A cart is pulled to the right with 30 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  13. 13.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.True or false: drawing up a well bucket is a push. (a) False (b) True
  15. 15.True or false: pushing a trolley is a pull. (a) False (b) True
  16. 16.💪 Two children push a box to the right, one with 55 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  17. 17.💪 Two children push a box to the right, one with 5 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 A cart is pulled to the right with 100 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  19. 19.True or false: drawing up a well bucket is a pull. (a) False (b) True
  20. 20.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
  22. 22.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) friction (d) magnetism
  23. 23.True or false: plucking a mango is a pull. (a) True (b) False
  24. 24.True or false: plucking a mango is a push. (a) False (b) True
  25. 25.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) squeezing a lemon (c) rain falls to the ground (d) a magnet picks up pins
  26. 26.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  27. 27.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) brakes stop a bicycle (d) rain falls to the ground
  28. 28.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  29. 29.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 Which force is at work: pedalling a cycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  31. 31.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  32. 32.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
  33. 33.Which of these is caused by muscular force? (a) pedalling a cycle (b) a rolling ball slows (c) a compass needle turns (d) rubbing hands warms them
  34. 34.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.True or false: pressing a doorbell is a pull. (a) False (b) True
  36. 36.Which of these is caused by magnetic force? (a) shoes grip the floor (b) rain falls to the ground (c) a fridge magnet sticks (d) brakes stop a bicycle
  37. 37.💪 Two children push a box to the right, one with 25 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  39. 39.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
  40. 40.Which of these is caused by magnetic force? (a) lifting a school bag (b) an apple falls down (c) squeezing a lemon (d) a compass needle turns

Answer key

  1. 115
  2. friction
  3. a push
  4. 45
  5. a pull
  6. 45
  7. a push
  8. muscular force
  9. True
  10. brakes stop a bicycle
  11. 16
  12. to the left
  13. 150
  14. False
  15. False
  16. 120
  17. 10
  18. no net force
  19. True
  20. 39
  21. push or a pull
  22. gravity
  23. True
  24. False
  25. a magnet picks up pins
  26. to the right
  27. lifting a school bag
  28. a push
  29. 60
  30. muscular force
  31. a pull
  32. friction
  33. pedalling a cycle
  34. 5
  35. False
  36. a fridge magnet sticks
  37. 95
  38. 5
  39. gravity
  40. a compass needle turns

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