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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 190 · 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) kind of colour (b) push or a pull (c) unit of time (d) type of sound
  2. 2.💪 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) to the right (b) to the left (c) no net force
  3. 3.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
  5. 5.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  6. 6.💪 A cart is pulled to the right with 90 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
  7. 7.True or false: pushing a swing is a pull. (a) True (b) False
  8. 8.True or false: pushing a trolley is a pull. (a) True (b) False
  9. 9.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) squeezing a lemon (c) an apple falls down (d) rubbing hands warms them
  10. 10.💪 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?
  11. 11.💪 Two children push a box to the right, one with 65 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  14. 14.💪 A cart is pulled to the right with 85 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  15. 15.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.True or false: hitting a cricket ball is a pull. (a) False (b) True
  18. 18.💪 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) no net force (b) to the right (c) to the left
  19. 19.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
  20. 20.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  21. 21.True or false: pressing a doorbell is a push. (a) True (b) False
  22. 22.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  23. 23.Which of these is caused by friction? (a) a rolling ball slows (b) a compass needle turns (c) a fridge magnet sticks (d) rain falls to the ground
  24. 24.True or false: plucking a mango is a push. (a) True (b) False
  25. 25.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  26. 26.💪 A cart is pulled to the right with 80 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  27. 27.💪 Two children push a box to the right, one with 40 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  29. 29.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  30. 30.True or false: opening a drawer is a pull. (a) True (b) False
  31. 31.💪 Two children push a box to the right, one with 80 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  32. 32.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a river flows downhill (c) rain falls to the ground (d) a fridge magnet sticks
  33. 33.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  34. 34.Which of these is caused by muscular force? (a) rain falls to the ground (b) lifting a school bag (c) a magnet picks up pins (d) shoes grip the floor
  35. 35.True or false: drawing up a well bucket is a push. (a) True (b) False
  36. 36.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) friction (d) magnetic force
  37. 37.True or false: pulling up your socks is a pull. (a) False (b) True
  38. 38.True or false: a tug of war is a pull. (a) True (b) False
  39. 39.Which of these is caused by friction? (a) rain falls to the ground (b) a fridge magnet sticks (c) rubbing hands warms them (d) a magnet picks up pins
  40. 40.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity

Answer key

  1. push or a pull
  2. to the left
  3. 60
  4. gravity
  5. a push
  6. to the right
  7. False
  8. False
  9. squeezing a lemon
  10. 10
  11. 140
  12. 34
  13. 10
  14. to the left
  15. 50
  16. 380
  17. False
  18. to the right
  19. friction
  20. 20
  21. True
  22. change its colour
  23. a rolling ball slows
  24. False
  25. a push
  26. to the right
  27. 80
  28. a push
  29. 35
  30. True
  31. 100
  32. a fridge magnet sticks
  33. a pull
  34. lifting a school bag
  35. False
  36. magnetic force
  37. True
  38. True
  39. rubbing hands warms them
  40. gravity

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