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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 562 · 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 bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  3. 3.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.True or false: pushing a trolley is a push. (a) True (b) False
  6. 6.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.Which of these is caused by muscular force? (a) a rolling ball slows (b) rain falls to the ground (c) shoes grip the floor (d) squeezing a lemon
  8. 8.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  9. 9.💪 Two children push a box to the right, one with 60 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 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 right (b) no net force (c) to the left
  11. 11.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
  12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
  13. 13.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
  14. 14.True or false: kicking a football is a push. (a) False (b) True
  15. 15.💪 Two children push a box to the right, one with 45 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  16. 16.True or false: pulling a cart is a push. (a) False (b) True
  17. 17.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) friction (d) magnetic force
  18. 18.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  19. 19.Which of these is caused by muscular force? (a) lifting a school bag (b) brakes stop a bicycle (c) a thrown ball comes down (d) an apple falls down
  20. 20.Which of these is caused by friction? (a) a rolling ball slows (b) an apple falls down (c) a magnet picks up pins (d) rain falls to the ground
  21. 21.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  23. 23.True or false: pushing a swing is a push. (a) False (b) True
  24. 24.💪 Two children push a box to the right, one with 40 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  26. 26.True or false: pulling up your socks is a push. (a) True (b) False
  27. 27.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  28. 28.True or false: closing a drawer is a push. (a) False (b) True
  29. 29.True or false: closing a drawer is a pull. (a) False (b) True
  30. 30.💪 Two children push a box to the right, one with 90 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: a tug of war is a pull. (a) False (b) True
  32. 32.Which of these is caused by gravity? (a) a magnet picks up pins (b) a river flows downhill (c) squeezing a lemon (d) pedalling a cycle
  33. 33.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 A cart is pulled to the right with 70 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  36. 36.💪 A cart is pulled to the right with 45 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  37. 37.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
  38. 38.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
  39. 39.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  40. 40.True or false: opening a drawer is a pull. (a) False (b) True

Answer key

  1. 570
  2. change its colour
  3. 230
  4. 5
  5. True
  6. 140
  7. squeezing a lemon
  8. a push
  9. 130
  10. to the right
  11. muscular force
  12. balanced
  13. gravity
  14. True
  15. 50
  16. False
  17. magnetic force
  18. gravity
  19. lifting a school bag
  20. a rolling ball slows
  21. 49
  22. a pull
  23. True
  24. 45
  25. a push
  26. False
  27. to the right
  28. True
  29. False
  30. 180
  31. True
  32. a river flows downhill
  33. 20
  34. 85
  35. no net force
  36. to the left
  37. magnetic force
  38. friction
  39. 35
  40. True

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