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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 441 · 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.💪 A cart is pulled to the right with 65 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  2. 2.💪 Two children push a box to the right, one with 95 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  3. 3.Which of these is caused by friction? (a) squeezing a lemon (b) rubbing hands warms them (c) lifting a school bag (d) rain falls to the ground
  4. 4.💪 A cart is pulled to the right with 70 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  5. 5.💪 Two children push a box to the right, one with 25 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  6. 6.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a rolling ball slows (c) rain falls to the ground (d) a fridge magnet sticks
  7. 7.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  8. 8.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.Which of these is caused by gravity? (a) pedalling a cycle (b) brakes stop a bicycle (c) a river flows downhill (d) a fridge magnet sticks
  10. 10.💪 A cart is pulled to the right with 35 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
  12. 12.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a thrown ball comes down (c) a rolling ball slows (d) lifting a school bag
  13. 13.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a rolling ball slows (c) pedalling a cycle (d) a compass needle turns
  14. 14.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) a rolling ball slows (d) squeezing a lemon
  15. 15.💪 Two children push a box to the right, one with 65 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  16. 16.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.True or false: a tug of war is a push. (a) True (b) False
  18. 18.💪 A cart is pulled to the right with 75 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  19. 19.True or false: drawing up a well bucket is a pull. (a) True (b) False
  20. 20.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) gravity (d) magnetic force
  21. 21.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) an apple falls down (d) lifting a school bag
  22. 22.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  24. 24.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
  25. 25.True or false: pulling a cart is a pull. (a) False (b) True
  26. 26.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
  27. 27.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
  28. 28.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
  29. 29.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) friction (d) muscular force
  30. 30.True or false: kicking a football is a push. (a) True (b) False
  31. 31.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  32. 32.💪 Two children push a box to the right, one with 45 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  34. 34.💪 A cart is pulled to the right with 40 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  35. 35.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.True or false: pulling a cart is a push. (a) False (b) True
  37. 37.Which of these is caused by magnetic force? (a) an apple falls down (b) lifting a school bag (c) a magnet picks up pins (d) shoes grip the floor
  38. 38.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  39. 39.💪 Two children push a box to the right, one with 85 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force

Answer key

  1. to the right
  2. 165
  3. rubbing hands warms them
  4. no net force
  5. 50
  6. rain falls to the ground
  7. a push
  8. 43
  9. a river flows downhill
  10. to the right
  11. balanced
  12. lifting a school bag
  13. a compass needle turns
  14. a thrown ball comes down
  15. 90
  16. 550
  17. False
  18. to the right
  19. True
  20. muscular force
  21. an apple falls down
  22. 420
  23. 5
  24. newton (N)
  25. True
  26. friction
  27. muscular force
  28. gravity
  29. muscular force
  30. True
  31. a push
  32. 60
  33. 5
  34. to the left
  35. 50
  36. False
  37. a magnet picks up pins
  38. a pull
  39. 110
  40. gravity

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