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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 373 · 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 force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
  2. 2.True or false: opening a drawer is a push. (a) True (b) False
  3. 3.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  4. 4.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  6. 6.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  7. 7.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  8. 8.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  9. 9.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  10. 10.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  11. 11.💪 A cart is pulled to the right with 75 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
  12. 12.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) change its shape (d) stop it moving
  13. 13.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  14. 14.💪 Two children push a box to the right, one with 20 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  16. 16.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) friction (d) muscular force
  17. 17.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.Which of these is caused by magnetic force? (a) lifting a school bag (b) an apple falls down (c) a thrown ball comes down (d) a magnet picks up pins
  19. 19.💪 Two children push a box to the right, one with 55 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  20. 20.True or false: drawing up a well bucket is a pull. (a) True (b) False
  21. 21.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  22. 22.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  23. 23.True or false: hitting a cricket ball is a pull. (a) True (b) False
  24. 24.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  25. 25.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.Which of these is caused by friction? (a) a river flows downhill (b) squeezing a lemon (c) a magnet picks up pins (d) brakes stop a bicycle
  27. 27.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  28. 28.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
  29. 29.True or false: pressing a doorbell is a push. (a) True (b) False
  30. 30.True or false: pushing a swing is a push. (a) True (b) False
  31. 31.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  33. 33.True or false: hitting a cricket ball is a push. (a) False (b) True
  34. 34.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  35. 35.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  36. 36.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a rolling ball slows (c) pedalling a cycle (d) rain falls to the ground
  37. 37.💪 A cart is pulled to the right with 35 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  38. 38.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  39. 39.True or false: pushing a swing is a pull. (a) False (b) True
  40. 40.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a compass needle turns (c) lifting a school bag (d) rain falls to the ground

Answer key

  1. push or a pull
  2. False
  3. 20
  4. 30
  5. 38
  6. to the left
  7. 30
  8. a pull
  9. a pull
  10. to the right
  11. to the right
  12. change its colour
  13. gravity
  14. 65
  15. 30
  16. friction
  17. 8
  18. a magnet picks up pins
  19. 70
  20. True
  21. a push
  22. to the left
  23. False
  24. to the right
  25. 16
  26. brakes stop a bicycle
  27. gravity
  28. muscular force
  29. True
  30. True
  31. 480
  32. a pull
  33. True
  34. 5
  35. a pull
  36. pedalling a cycle
  37. to the left
  38. a push
  39. False
  40. lifting a school bag

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