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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 923 · 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 force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
  2. 2.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) friction (d) gravity
  3. 3.Which of these is caused by gravity? (a) lifting a school bag (b) pedalling a cycle (c) a thrown ball comes down (d) shoes grip the floor
  4. 4.💪 Two children push a box to the right, one with 65 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  5. 5.Which of these is caused by gravity? (a) rubbing hands warms them (b) squeezing a lemon (c) a river flows downhill (d) pedalling a cycle
  6. 6.💪 A cart is pulled to the right with 65 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  7. 7.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
  8. 8.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) gravity (d) magnetism
  9. 9.Which of these is caused by magnetic force? (a) pedalling a cycle (b) lifting a school bag (c) a fridge magnet sticks (d) brakes stop a bicycle
  10. 10.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  11. 11.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  12. 12.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  13. 13.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  14. 14.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  15. 15.Which of these is caused by friction? (a) squeezing a lemon (b) brakes stop a bicycle (c) a compass needle turns (d) lifting a school bag
  16. 16.💪 A cart is pulled to the right with 20 N and to the left with 15 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  17. 17.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  18. 18.True or false: pressing a doorbell is a pull. (a) True (b) False
  19. 19.💪 Two children push a box to the right, one with 40 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  20. 20.True or false: drawing up a well bucket is a pull. (a) False (b) True
  21. 21.True or false: pushing a trolley is a push. (a) True (b) False
  22. 22.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  23. 23.Which of these is caused by friction? (a) squeezing a lemon (b) pedalling a cycle (c) rubbing hands warms them (d) a fridge magnet sticks
  24. 24.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) friction (d) muscular force
  25. 25.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  26. 26.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  28. 28.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  31. 31.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  32. 32.True or false: kicking a football is a pull. (a) False (b) True
  33. 33.💪 Two children push a box to the right, one with 50 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  35. 35.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
  36. 36.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  37. 37.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  38. 38.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  39. 39.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  40. 40.True or false: a tug of war is a push. (a) False (b) True

Answer key

  1. magnetic force
  2. friction
  3. a thrown ball comes down
  4. 155
  5. a river flows downhill
  6. to the right
  7. magnetic force
  8. gravity
  9. a fridge magnet sticks
  10. 5
  11. push or a pull
  12. to the left
  13. 20
  14. a pull
  15. brakes stop a bicycle
  16. to the right
  17. 10
  18. False
  19. 90
  20. True
  21. True
  22. 100
  23. rubbing hands warms them
  24. gravity
  25. a push
  26. a pull
  27. a push
  28. 22
  29. 160
  30. a push
  31. 40
  32. False
  33. 130
  34. a pull
  35. muscular force
  36. 10
  37. to the right
  38. 25
  39. gravity
  40. False

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