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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 29 · 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: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
  2. 2.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) magnetic force (d) gravity
  3. 3.True or false: pulling a cart is a push. (a) True (b) False
  4. 4.True or false: pulling a cart is a pull. (a) True (b) False
  5. 5.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  7. 7.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  9. 9.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.True or false: pushing a trolley is a pull. (a) True (b) False
  11. 11.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.True or false: hitting a cricket ball is a pull. (a) False (b) True
  15. 15.True or false: kicking a football is a push. (a) False (b) True
  16. 16.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  17. 17.Which of these is caused by muscular force? (a) squeezing a lemon (b) brakes stop a bicycle (c) a rolling ball slows (d) rain falls to the ground
  18. 18.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  20. 20.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  21. 21.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  22. 22.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
  23. 23.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) gravity (d) magnetic force
  24. 24.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) friction (d) muscular force
  25. 25.True or false: a tug of war is a pull. (a) False (b) True
  26. 26.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
  27. 27.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
  29. 29.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
  31. 31.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  32. 32.Which of these is caused by gravity? (a) a rolling ball slows (b) a fridge magnet sticks (c) squeezing a lemon (d) a thrown ball comes down
  33. 33.💪 A box weighs 240 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 80 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  35. 35.True or false: opening a drawer is a push. (a) False (b) True
  36. 36.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  37. 37.True or false: pulling up your socks is a pull. (a) False (b) True
  38. 38.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  39. 39.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) friction (d) magnetic force

Answer key

  1. muscular force
  2. magnetic force
  3. False
  4. True
  5. 50
  6. a push
  7. 100
  8. to the right
  9. 55
  10. False
  11. 16
  12. 45
  13. 9
  14. False
  15. True
  16. 40
  17. squeezing a lemon
  18. 280
  19. a pull
  20. a pull
  21. a pull
  22. newton (N)
  23. friction
  24. magnetic force
  25. True
  26. push or a pull
  27. 210
  28. change its colour
  29. 310
  30. balanced
  31. a push
  32. a thrown ball comes down
  33. 24
  34. 105
  35. False
  36. a pull
  37. True
  38. 25
  39. 7
  40. muscular force

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