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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 894 · 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 force is at work: lifting a school bag? (a) friction (b) gravity (c) muscular force (d) magnetic force
  2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
  3. 3.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  4. 4.True or false: hitting a cricket ball is a push. (a) False (b) True
  5. 5.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  6. 6.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  7. 7.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  8. 8.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  9. 9.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  10. 10.Which of these is caused by friction? (a) a river flows downhill (b) a magnet picks up pins (c) rubbing hands warms them (d) squeezing a lemon
  11. 11.True or false: pushing a trolley is a pull. (a) False (b) True
  12. 12.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  13. 13.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  15. 15.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) shoes grip the floor (c) rain falls to the ground (d) lifting a school bag
  16. 16.True or false: plucking a mango is a pull. (a) False (b) True
  17. 17.Which of these is caused by magnetic force? (a) pedalling a cycle (b) brakes stop a bicycle (c) squeezing a lemon (d) a fridge magnet sticks
  18. 18.💪 Two children push a box to the right, one with 20 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  21. 21.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 Two children push a box to the right, one with 35 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Two children push a box to the right, one with 60 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) squeezing a lemon (c) rain falls to the ground (d) a fridge magnet sticks
  27. 27.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  28. 28.True or false: drawing up a well bucket is a push. (a) True (b) False
  29. 29.True or false: pulling up your socks is a pull. (a) False (b) True
  30. 30.True or false: plucking a mango is a push. (a) False (b) True
  31. 31.💪 Two children push a box to the right, one with 55 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  33. 33.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  34. 34.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
  35. 35.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  36. 36.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) muscular force (d) gravity
  37. 37.True or false: pulling a cart is a push. (a) False (b) True
  38. 38.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  39. 39.💪 A cart is pulled to the right with 30 N and to the left with 15 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  40. 40.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push

Answer key

  1. muscular force
  2. balanced
  3. gravity
  4. True
  5. a pull
  6. 50
  7. 25
  8. 10
  9. a push
  10. rubbing hands warms them
  11. False
  12. 10
  13. 53
  14. 25
  15. a magnet picks up pins
  16. True
  17. a fridge magnet sticks
  18. 35
  19. 8
  20. a push
  21. 20
  22. 230
  23. 50
  24. 105
  25. 400
  26. squeezing a lemon
  27. 5
  28. False
  29. True
  30. False
  31. 95
  32. change its colour
  33. push or a pull
  34. friction
  35. to the right
  36. friction
  37. False
  38. a pull
  39. to the right
  40. a push

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