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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 804 · 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 right with 90 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  2. 2.Which of these is caused by friction? (a) a river flows downhill (b) shoes grip the floor (c) lifting a school bag (d) squeezing a lemon
  3. 3.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  5. 5.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  6. 6.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 Two children push a box to the right, one with 65 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 Two children push a box to the right, one with 95 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  10. 10.True or false: pushing a trolley is a push. (a) True (b) False
  11. 11.💪 A cart is pulled to the right with 85 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
  12. 12.True or false: drawing up a well bucket is a push. (a) True (b) False
  13. 13.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a magnet picks up pins (c) a river flows downhill (d) brakes stop a bicycle
  14. 14.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) an apple falls down (c) lifting a school bag (d) a river flows downhill
  15. 15.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 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) no net force (c) to the right
  17. 17.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) shoes grip the floor (d) a magnet picks up pins
  18. 18.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) magnetic force (d) friction
  19. 19.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.Which of these is caused by muscular force? (a) pedalling a cycle (b) rain falls to the ground (c) shoes grip the floor (d) an apple falls down
  21. 21.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  22. 22.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.Which of these is caused by magnetic force? (a) a compass needle turns (b) brakes stop a bicycle (c) a rolling ball slows (d) a river flows downhill
  24. 24.Which of these is caused by gravity? (a) a rolling ball slows (b) brakes stop a bicycle (c) a thrown ball comes down (d) a fridge magnet sticks
  25. 25.Which of these is caused by magnetic force? (a) lifting a school bag (b) rain falls to the ground (c) a thrown ball comes down (d) a magnet picks up pins
  26. 26.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  27. 27.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  28. 28.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  29. 29.True or false: pushing a swing is a pull. (a) False (b) True
  30. 30.💪 Two children push a box to the right, one with 5 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: hitting a cricket ball is a pull. (a) False (b) True
  32. 32.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  33. 33.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  34. 34.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  35. 35.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  36. 36.💪 Two children push a box to the right, one with 30 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  37. 37.Which of these is caused by muscular force? (a) a thrown ball comes down (b) shoes grip the floor (c) lifting a school bag (d) a fridge magnet sticks
  38. 38.True or false: kicking a football is a pull. (a) True (b) False
  39. 39.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
  40. 40.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. 25
  2. shoes grip the floor
  3. 49
  4. a push
  5. a push
  6. 520
  7. 10
  8. 150
  9. 115
  10. True
  11. to the right
  12. False
  13. a river flows downhill
  14. a fridge magnet sticks
  15. 27
  16. no net force
  17. an apple falls down
  18. gravity
  19. 57
  20. pedalling a cycle
  21. a push
  22. 42
  23. a compass needle turns
  24. a thrown ball comes down
  25. a magnet picks up pins
  26. gravity
  27. friction
  28. muscular force
  29. False
  30. 40
  31. False
  32. 15
  33. 75
  34. a push
  35. push or a pull
  36. 40
  37. lifting a school bag
  38. False
  39. muscular force
  40. 18

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