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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 444 · 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 of these is caused by muscular force? (a) brakes stop a bicycle (b) a rolling ball slows (c) squeezing a lemon (d) shoes grip the floor
  2. 2.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  3. 3.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  4. 4.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) magnetic force (d) muscular force
  5. 5.💪 Two children push a box to the right, one with 15 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 Two children push a box to the right, one with 15 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  7. 7.True or false: pressing a doorbell is a push. (a) False (b) True
  8. 8.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) shoes grip the floor (d) a rolling ball slows
  9. 9.True or false: kicking a football is a pull. (a) False (b) True
  10. 10.True or false: opening a drawer is a pull. (a) False (b) True
  11. 11.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
  12. 12.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  13. 13.Which of these is caused by muscular force? (a) an apple falls down (b) a thrown ball comes down (c) pedalling a cycle (d) rain falls to the ground
  14. 14.True or false: hitting a cricket ball is a push. (a) True (b) False
  15. 15.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  16. 16.True or false: drawing up a well bucket is a push. (a) False (b) True
  17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  18. 18.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  19. 19.True or false: pressing a doorbell is a pull. (a) False (b) True
  20. 20.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  21. 21.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  22. 22.Which of these is caused by gravity? (a) rain falls to the ground (b) a fridge magnet sticks (c) rubbing hands warms them (d) lifting a school bag
  23. 23.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  25. 25.💪 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 right (b) no net force (c) to the left
  26. 26.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) stop it moving (d) start it moving
  27. 27.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  28. 28.💪 Two children push a box to the right, one with 10 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  30. 30.Which of these is caused by friction? (a) a magnet picks up pins (b) a rolling ball slows (c) rain falls to the ground (d) pedalling a cycle
  31. 31.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) unbalanced (d) gravity
  33. 33.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  34. 34.True or false: plucking a mango is a push. (a) False (b) True
  35. 35.True or false: hitting a cricket ball is a pull. (a) False (b) True
  36. 36.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  37. 37.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  38. 38.Which of these is caused by magnetic force? (a) a river flows downhill (b) brakes stop a bicycle (c) a compass needle turns (d) shoes grip the floor
  39. 39.True or false: pushing a swing is a pull. (a) True (b) False
  40. 40.True or false: pulling a cart is a push. (a) False (b) True

Answer key

  1. squeezing a lemon
  2. a push
  3. a pull
  4. friction
  5. 45
  6. 65
  7. True
  8. an apple falls down
  9. False
  10. True
  11. newton (N)
  12. 25
  13. pedalling a cycle
  14. True
  15. a push
  16. False
  17. a push
  18. gravity
  19. False
  20. 60
  21. a pull
  22. rain falls to the ground
  23. 130
  24. a pull
  25. to the left
  26. change its colour
  27. gravity
  28. 55
  29. a pull
  30. a rolling ball slows
  31. 260
  32. balanced
  33. 540
  34. False
  35. False
  36. 5
  37. a pull
  38. a compass needle turns
  39. False
  40. False

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