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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 205 · 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.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  2. 2.Which of these is caused by friction? (a) a magnet picks up pins (b) shoes grip the floor (c) an apple falls down (d) lifting a school bag
  3. 3.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
  4. 4.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  5. 5.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
  8. 8.💪 A cart is pulled to the right with 50 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  9. 9.Which of these is caused by friction? (a) lifting a school bag (b) a magnet picks up pins (c) pedalling a cycle (d) rubbing hands warms them
  10. 10.💪 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) no net force (c) to the left
  11. 11.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  12. 12.True or false: hitting a cricket ball is a pull. (a) False (b) True
  13. 13.💪 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 left (b) no net force (c) to the right
  14. 14.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.Which of these is caused by magnetic force? (a) lifting a school bag (b) a river flows downhill (c) a magnet picks up pins (d) rubbing hands warms them
  16. 16.Which of these is caused by gravity? (a) squeezing a lemon (b) a thrown ball comes down (c) a compass needle turns (d) a fridge magnet sticks
  17. 17.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 Two children push a box to the right, one with 75 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  20. 20.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
  21. 21.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) muscular force (d) gravity
  22. 22.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) gravity (d) magnetic force
  23. 23.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) friction (d) magnetism
  24. 24.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  25. 25.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) muscular force (d) magnetic force
  26. 26.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
  27. 27.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  30. 30.💪 Two children push a box to the right, one with 90 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 A cart is pulled to the right with 45 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  32. 32.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  34. 34.True or false: drawing up a well bucket is a push. (a) True (b) False
  35. 35.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  36. 36.True or false: plucking a mango is a push. (a) False (b) True
  37. 37.💪 A cart is pulled to the right with 60 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
  38. 38.True or false: pulling a cart is a push. (a) True (b) False
  39. 39.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
  40. 40.True or false: closing a drawer is a push. (a) False (b) True

Answer key

  1. a push
  2. shoes grip the floor
  3. push or a pull
  4. 25
  5. change its colour
  6. a push
  7. balanced
  8. to the right
  9. rubbing hands warms them
  10. no net force
  11. 5
  12. False
  13. to the left
  14. 420
  15. a magnet picks up pins
  16. a thrown ball comes down
  17. 280
  18. 110
  19. a pull
  20. magnetic force
  21. muscular force
  22. gravity
  23. gravity
  24. 10
  25. friction
  26. newton (N)
  27. 29
  28. 140
  29. no net force
  30. 175
  31. to the right
  32. 9
  33. a pull
  34. False
  35. 65
  36. False
  37. to the left
  38. False
  39. muscular force
  40. True

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