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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 133 · 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.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  2. 2.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
  3. 3.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
  4. 4.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  5. 5.True or false: pulling up your socks is a pull. (a) True (b) False
  6. 6.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  8. 8.💪 A cart is pulled to the right with 95 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  9. 9.True or false: pushing a swing is a push. (a) False (b) True
  10. 10.💪 Two children push a box to the right, one with 40 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  11. 11.Which of these is caused by magnetic force? (a) lifting a school bag (b) pedalling a cycle (c) a fridge magnet sticks (d) squeezing a lemon
  12. 12.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
  13. 13.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
  14. 14.Which of these is caused by friction? (a) a magnet picks up pins (b) a rolling ball slows (c) a fridge magnet sticks (d) a compass needle turns
  15. 15.True or false: closing a drawer is a pull. (a) False (b) True
  16. 16.💪 A cart is pulled to the right with 45 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  17. 17.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  18. 18.True or false: a tug of war is a pull. (a) False (b) True
  19. 19.True or false: pulling up your socks is a push. (a) False (b) True
  20. 20.True or false: hitting a cricket ball is a pull. (a) True (b) False
  21. 21.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
  22. 22.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  24. 24.True or false: drawing up a well bucket is a push. (a) False (b) True
  25. 25.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  26. 26.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  28. 28.Which of these is caused by gravity? (a) a magnet picks up pins (b) a river flows downhill (c) a rolling ball slows (d) a compass needle turns
  29. 29.💪 Two children push a box to the right, one with 85 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  30. 30.Which of these is caused by muscular force? (a) a magnet picks up pins (b) squeezing a lemon (c) an apple falls down (d) a fridge magnet sticks
  31. 31.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  32. 32.True or false: pressing a doorbell is a pull. (a) True (b) False
  33. 33.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 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?
  35. 35.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 A box weighs 230 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 25 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) a thrown ball comes down (b) rain falls to the ground (c) lifting a school bag (d) a river flows downhill
  39. 39.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  40. 40.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. to the right
  2. magnetic force
  3. newton (N)
  4. balanced
  5. True
  6. 310
  7. 20
  8. to the right
  9. True
  10. 110
  11. a fridge magnet sticks
  12. push or a pull
  13. muscular force
  14. a rolling ball slows
  15. False
  16. to the left
  17. a pull
  18. True
  19. False
  20. False
  21. change its colour
  22. 28
  23. a pull
  24. False
  25. 10
  26. a push
  27. a push
  28. a river flows downhill
  29. 110
  30. squeezing a lemon
  31. 60
  32. False
  33. 41
  34. 5
  35. 57
  36. 23
  37. 120
  38. lifting a school bag
  39. 20
  40. 51

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