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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 309 · 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 gravity? (a) a fridge magnet sticks (b) a magnet picks up pins (c) rubbing hands warms them (d) a thrown ball comes down
  2. 2.True or false: pressing a doorbell is a pull. (a) False (b) True
  3. 3.💪 Two children push a box to the right, one with 5 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Two children push a box to the right, one with 90 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  5. 5.True or false: closing a drawer is a pull. (a) True (b) False
  6. 6.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
  7. 7.True or false: plucking a mango is a push. (a) False (b) True
  8. 8.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 Two children push a box to the right, one with 40 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  11. 11.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  12. 12.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  13. 13.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  14. 14.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  15. 15.Which of these is caused by friction? (a) a magnet picks up pins (b) squeezing a lemon (c) shoes grip the floor (d) a thrown ball comes down
  16. 16.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  17. 17.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  18. 18.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
  19. 19.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a magnet picks up pins (c) a rolling ball slows (d) an apple falls down
  20. 20.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  22. 22.True or false: pulling up your socks is a push. (a) False (b) True
  23. 23.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its colour (d) change its shape
  25. 25.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  26. 26.True or false: pressing a doorbell is a push. (a) True (b) False
  27. 27.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) gravity (d) magnetic force
  28. 28.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
  29. 29.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) gravity (d) magnetic force
  30. 30.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 Two children push a box to the right, one with 35 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  33. 33.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 Two children push a box to the right, one with 80 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  37. 37.Which of these is caused by muscular force? (a) rubbing hands warms them (b) rain falls to the ground (c) a magnet picks up pins (d) squeezing a lemon
  38. 38.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  39. 39.True or false: a tug of war is a push. (a) False (b) True
  40. 40.True or false: pulling a cart is a pull. (a) False (b) True

Answer key

  1. a thrown ball comes down
  2. False
  3. 40
  4. 160
  5. False
  6. newton (N)
  7. False
  8. 5
  9. 90
  10. a push
  11. to the right
  12. a pull
  13. a push
  14. gravity
  15. shoes grip the floor
  16. balanced
  17. 10
  18. gravity
  19. an apple falls down
  20. 80
  21. a push
  22. False
  23. a pull
  24. change its colour
  25. 30
  26. True
  27. magnetic force
  28. 20
  29. friction
  30. 40
  31. 115
  32. a pull
  33. 17
  34. 52
  35. 120
  36. a pull
  37. squeezing a lemon
  38. 25
  39. False
  40. True

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