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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 408 · 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) magnetic force (b) muscular force (c) friction (d) gravity
  2. 2.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  5. 5.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  6. 6.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  7. 7.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  8. 8.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  9. 9.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) magnetic force (d) gravity
  10. 10.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  11. 11.💪 Two children push a box to the right, one with 25 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  12. 12.Which of these is caused by gravity? (a) a rolling ball slows (b) shoes grip the floor (c) rain falls to the ground (d) squeezing a lemon
  13. 13.True or false: drawing up a well bucket is a pull. (a) True (b) False
  14. 14.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  15. 15.True or false: kicking a football is a pull. (a) True (b) False
  16. 16.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  17. 17.Which of these is caused by gravity? (a) shoes grip the floor (b) a rolling ball slows (c) a river flows downhill (d) a fridge magnet sticks
  18. 18.💪 Two children push a box to the right, one with 25 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  19. 19.True or false: a tug of war is a push. (a) True (b) False
  20. 20.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  21. 21.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  22. 22.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  23. 23.💪 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 right (b) no net force (c) to the left
  24. 24.True or false: pressing a doorbell is a pull. (a) True (b) False
  25. 25.💪 Two children push a box to the right, one with 50 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  27. 27.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
  29. 29.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  30. 30.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  31. 31.Which of these is caused by gravity? (a) a thrown ball comes down (b) a rolling ball slows (c) a compass needle turns (d) lifting a school bag
  32. 32.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
  33. 33.True or false: pulling a cart is a pull. (a) False (b) True
  34. 34.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  35. 35.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
  37. 37.True or false: a tug of war is a pull. (a) False (b) True
  38. 38.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  39. 39.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
  40. 40.True or false: pushing a trolley is a push. (a) True (b) False

Answer key

  1. gravity
  2. 480
  3. 42
  4. change its colour
  5. 5
  6. to the right
  7. a push
  8. a pull
  9. muscular force
  10. to the right
  11. 105
  12. rain falls to the ground
  13. True
  14. 15
  15. False
  16. a push
  17. a river flows downhill
  18. 95
  19. False
  20. a push
  21. 45
  22. a push
  23. to the right
  24. False
  25. 70
  26. a push
  27. 150
  28. friction
  29. 50
  30. to the right
  31. a thrown ball comes down
  32. friction
  33. True
  34. a pull
  35. 28
  36. friction
  37. True
  38. 37
  39. newton (N)
  40. True

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