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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 51 · 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 75 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  2. 2.True or false: closing a drawer is a push. (a) False (b) True
  3. 3.💪 A cart is pulled to the right with 55 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  4. 4.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) metre (m) (d) litre (L)
  5. 5.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.True or false: a tug of war is a pull. (a) False (b) True
  7. 7.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
  8. 8.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) friction (d) gravity
  9. 9.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a river flows downhill (c) squeezing a lemon (d) shoes grip the floor
  10. 10.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by muscular force? (a) an apple falls down (b) a fridge magnet sticks (c) pedalling a cycle (d) a magnet picks up pins
  12. 12.Which of these is caused by friction? (a) an apple falls down (b) a fridge magnet sticks (c) rain falls to the ground (d) shoes grip the floor
  13. 13.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
  15. 15.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  16. 16.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.💪 A cart is pulled to the right with 75 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  18. 18.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  19. 19.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.Which of these is caused by gravity? (a) a rolling ball slows (b) a fridge magnet sticks (c) lifting a school bag (d) a thrown ball comes down
  21. 21.Which of these is caused by gravity? (a) rubbing hands warms them (b) a rolling ball slows (c) rain falls to the ground (d) pedalling a cycle
  22. 22.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) magnetic force (d) muscular force
  23. 23.💪 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) no net force (b) to the left (c) to the right
  24. 24.True or false: pressing a doorbell is a push. (a) False (b) True
  25. 25.💪 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 right (b) to the left (c) no net force
  26. 26.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  28. 28.💪 Two children push a box to the right, one with 30 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) friction (d) gravity
  31. 31.True or false: pushing a trolley is a pull. (a) False (b) True
  32. 32.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  33. 33.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  34. 34.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  36. 36.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.💪 Two children push a box to the right, one with 30 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  38. 38.Which of these is caused by muscular force? (a) rain falls to the ground (b) a fridge magnet sticks (c) an apple falls down (d) lifting a school bag
  39. 39.True or false: pressing a doorbell is a pull. (a) False (b) True
  40. 40.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) gravity (d) friction

Answer key

  1. 40
  2. True
  3. to the left
  4. newton (N)
  5. 100
  6. True
  7. push or a pull
  8. friction
  9. squeezing a lemon
  10. 10
  11. pedalling a cycle
  12. shoes grip the floor
  13. 530
  14. magnetic force
  15. a push
  16. 180
  17. to the left
  18. a push
  19. 6
  20. a thrown ball comes down
  21. rain falls to the ground
  22. friction
  23. to the left
  24. True
  25. no net force
  26. a push
  27. a pull
  28. 55
  29. 23
  30. muscular force
  31. False
  32. 25
  33. a pull
  34. 400
  35. 15
  36. 33
  37. 125
  38. lifting a school bag
  39. False
  40. gravity

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