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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 667 · 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: rubbing hands warms them? (a) muscular force (b) magnetic force (c) gravity (d) friction
  2. 2.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  3. 3.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  4. 4.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  5. 5.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
  6. 6.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.True or false: kicking a football is a pull. (a) True (b) False
  8. 8.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
  10. 10.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
  11. 11.True or false: opening a drawer is a push. (a) False (b) True
  12. 12.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  13. 13.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  14. 14.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) magnetic force (d) muscular force
  15. 15.💪 Two children push a box to the right, one with 100 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  16. 16.True or false: pushing a trolley is a push. (a) True (b) False
  17. 17.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  18. 18.Which of these is caused by friction? (a) rubbing hands warms them (b) rain falls to the ground (c) a thrown ball comes down (d) a magnet picks up pins
  19. 19.True or false: hitting a cricket ball is a pull. (a) True (b) False
  20. 20.True or false: closing a drawer is a pull. (a) False (b) True
  21. 21.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  22. 22.💪 Two children push a box to the right, one with 10 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  23. 23.Which of these is caused by gravity? (a) rubbing hands warms them (b) pedalling a cycle (c) a rolling ball slows (d) rain falls to the ground
  24. 24.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  25. 25.Which of these is caused by friction? (a) a thrown ball comes down (b) shoes grip the floor (c) a compass needle turns (d) squeezing a lemon
  26. 26.True or false: pushing a swing is a pull. (a) True (b) False
  27. 27.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  28. 28.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  29. 29.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.True or false: plucking a mango is a pull. (a) False (b) True
  32. 32.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) magnetic force (d) friction
  33. 33.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) a magnet picks up pins (d) lifting a school bag
  34. 34.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  35. 35.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.Which of these is caused by muscular force? (a) an apple falls down (b) a rolling ball slows (c) a fridge magnet sticks (d) lifting a school bag
  37. 37.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  38. 38.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
  39. 39.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  40. 40.True or false: a tug of war is a pull. (a) True (b) False

Answer key

  1. friction
  2. a pull
  3. push or a pull
  4. a push
  5. gravity
  6. 19
  7. False
  8. 10
  9. balanced
  10. gravity
  11. False
  12. 45
  13. a push
  14. gravity
  15. 115
  16. True
  17. newton (N)
  18. rubbing hands warms them
  19. False
  20. False
  21. 25
  22. 25
  23. rain falls to the ground
  24. a push
  25. shoes grip the floor
  26. False
  27. a pull
  28. muscular force
  29. 34
  30. 45
  31. True
  32. muscular force
  33. a magnet picks up pins
  34. 45
  35. 410
  36. lifting a school bag
  37. a push
  38. magnetic force
  39. a pull
  40. True

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