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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 473 · 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.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  2. 2.💪 Two children push a box to the right, one with 90 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 Two children push a box to the right, one with 90 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Two children push a box to the right, one with 10 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
  6. 6.True or false: pulling up your socks is a push. (a) False (b) True
  7. 7.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) friction (d) gravity
  8. 8.True or false: pulling up your socks is a pull. (a) True (b) False
  9. 9.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  10. 10.💪 Two children push a box to the right, one with 80 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) pedalling a cycle (b) a magnet picks up pins (c) brakes stop a bicycle (d) rubbing hands warms them
  12. 12.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Which force is at work: pedalling a cycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
  15. 15.💪 A cart is pulled to the right with 90 N and to the left with 105 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  16. 16.True or false: closing a drawer is a pull. (a) False (b) True
  17. 17.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
  19. 19.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  20. 20.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
  21. 21.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  25. 25.Which of these is caused by friction? (a) a thrown ball comes down (b) shoes grip the floor (c) squeezing a lemon (d) a magnet picks up pins
  26. 26.💪 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) no net force (c) to the right
  27. 27.True or false: plucking a mango is a pull. (a) False (b) True
  28. 28.💪 A cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  29. 29.💪 A cart is pulled to the right with 40 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  30. 30.True or false: opening a drawer is a push. (a) True (b) False
  31. 31.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) gravity (d) muscular force
  32. 32.Which of these is caused by gravity? (a) brakes stop a bicycle (b) squeezing a lemon (c) shoes grip the floor (d) rain falls to the ground
  33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  34. 34.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  35. 35.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  36. 36.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
  37. 37.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  38. 38.True or false: kicking a football is a pull. (a) True (b) False
  39. 39.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. a push
  2. 150
  3. 95
  4. 95
  5. newton (N)
  6. False
  7. friction
  8. True
  9. 25
  10. 150
  11. a magnet picks up pins
  12. 39
  13. 70
  14. muscular force
  15. to the left
  16. False
  17. 60
  18. balanced
  19. to the right
  20. change its colour
  21. 19
  22. 180
  23. a push
  24. gravity
  25. shoes grip the floor
  26. to the right
  27. True
  28. to the left
  29. to the left
  30. False
  31. friction
  32. rain falls to the ground
  33. a pull
  34. gravity
  35. a push
  36. 5
  37. a pull
  38. False
  39. 15
  40. 42

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