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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 337 · 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.True or false: pressing a doorbell is a pull. (a) True (b) False
  2. 2.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  3. 3.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 80 N. What is the size of the net force, in newtons?
  4. 4.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  5. 5.Which of these is caused by gravity? (a) a compass needle turns (b) rubbing hands warms them (c) a magnet picks up pins (d) rain falls to the ground
  6. 6.Which of these is caused by gravity? (a) squeezing a lemon (b) rubbing hands warms them (c) lifting a school bag (d) a river flows downhill
  7. 7.Which of these is caused by muscular force? (a) an apple falls down (b) a river flows downhill (c) lifting a school bag (d) a fridge magnet sticks
  8. 8.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  9. 9.True or false: pulling a cart is a push. (a) True (b) False
  10. 10.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) litre (L) (d) second (s)
  11. 11.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  12. 12.Which of these is caused by muscular force? (a) squeezing a lemon (b) rubbing hands warms them (c) shoes grip the floor (d) brakes stop a bicycle
  13. 13.True or false: opening a drawer is a pull. (a) False (b) True
  14. 14.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) magnetic force (d) friction
  15. 15.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  16. 16.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  17. 17.💪 Two children push a box to the right, one with 50 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  18. 18.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a rolling ball slows (c) shoes grip the floor (d) a thrown ball comes down
  19. 19.True or false: hitting a cricket ball is a push. (a) False (b) True
  20. 20.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) muscular force (d) friction
  21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
  22. 22.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  23. 23.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a thrown ball comes down (c) lifting a school bag (d) a compass needle turns
  24. 24.💪 Two children push a box to the right, one with 90 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 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?
  26. 26.True or false: pushing a swing is a pull. (a) False (b) True
  27. 27.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  28. 28.💪 A cart is pulled to the right with 30 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  29. 29.True or false: a tug of war is a pull. (a) False (b) True
  30. 30.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  31. 31.True or false: pushing a trolley is a pull. (a) True (b) False
  32. 32.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  33. 33.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  34. 34.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
  35. 35.💪 A cart is pulled to the right with 75 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  36. 36.True or false: pushing a trolley is a push. (a) True (b) False
  37. 37.💪 A cart is pulled to the right with 55 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  38. 38.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
  39. 39.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) muscular force (d) magnetic force
  40. 40.True or false: closing a drawer is a pull. (a) False (b) True

Answer key

  1. False
  2. a pull
  3. 20
  4. a push
  5. rain falls to the ground
  6. a river flows downhill
  7. lifting a school bag
  8. push or a pull
  9. False
  10. newton (N)
  11. friction
  12. squeezing a lemon
  13. True
  14. gravity
  15. 10
  16. 5
  17. 65
  18. a thrown ball comes down
  19. True
  20. friction
  21. False
  22. friction
  23. a compass needle turns
  24. 180
  25. 85
  26. False
  27. 25
  28. no net force
  29. True
  30. a push
  31. False
  32. a pull
  33. a pull
  34. gravity
  35. to the left
  36. True
  37. to the left
  38. balanced
  39. friction
  40. False

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