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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 494 · 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: rain falls to the ground? (a) gravity (b) magnetic force (c) muscular force (d) friction
  2. 2.True or false: pressing a doorbell is a push. (a) True (b) False
  3. 3.💪 Two children push a box to the right, one with 45 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  5. 5.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  6. 6.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) friction (d) gravity
  8. 8.💪 Two children push a box to the right, one with 60 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  9. 9.True or false: kicking a football is a pull. (a) True (b) False
  10. 10.💪 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?
  11. 11.💪 A cart is pulled to the right with 85 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  12. 12.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  14. 14.Which of these is caused by gravity? (a) pedalling a cycle (b) a compass needle turns (c) a river flows downhill (d) a rolling ball slows
  15. 15.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  16. 16.Which of these is caused by muscular force? (a) a thrown ball comes down (b) brakes stop a bicycle (c) rubbing hands warms them (d) pedalling a cycle
  17. 17.💪 Two children push a box to the right, one with 80 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  20. 20.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
  21. 21.Which of these is caused by friction? (a) a thrown ball comes down (b) pedalling a cycle (c) brakes stop a bicycle (d) lifting a school bag
  22. 22.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  23. 23.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
  24. 24.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  25. 25.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  26. 26.💪 A cart is pulled to the right with 65 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  27. 27.Which of these is caused by gravity? (a) squeezing a lemon (b) a magnet picks up pins (c) brakes stop a bicycle (d) an apple falls down
  28. 28.True or false: pushing a trolley is a pull. (a) False (b) True
  29. 29.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  30. 30.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  31. 31.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) magnetic force (d) gravity
  32. 32.True or false: pulling a cart is a push. (a) False (b) True
  33. 33.Which of these is caused by friction? (a) rubbing hands warms them (b) pedalling a cycle (c) a thrown ball comes down (d) squeezing a lemon
  34. 34.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  35. 35.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  37. 37.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  38. 38.Which of these is caused by gravity? (a) lifting a school bag (b) shoes grip the floor (c) pedalling a cycle (d) rain falls to the ground
  39. 39.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) pedalling a cycle (d) a magnet picks up pins
  40. 40.True or false: pushing a trolley is a push. (a) True (b) False

Answer key

  1. gravity
  2. True
  3. 55
  4. 490
  5. to the right
  6. 590
  7. magnetic force
  8. 85
  9. False
  10. 165
  11. no net force
  12. 27
  13. a pull
  14. a river flows downhill
  15. push or a pull
  16. pedalling a cycle
  17. 100
  18. 550
  19. a push
  20. friction
  21. brakes stop a bicycle
  22. gravity
  23. gravity
  24. newton (N)
  25. to the right
  26. to the right
  27. an apple falls down
  28. False
  29. gravity
  30. a push
  31. friction
  32. False
  33. rubbing hands warms them
  34. 50
  35. 57
  36. 30
  37. 5
  38. rain falls to the ground
  39. a magnet picks up pins
  40. True

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