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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 361 · 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 hitting a cricket ball a push or a pull? (a) a pull (b) a push
  2. 2.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
  3. 3.True or false: opening a drawer is a push. (a) True (b) False
  4. 4.True or false: hitting a cricket ball is a pull. (a) False (b) True
  5. 5.True or false: pushing a trolley is a pull. (a) False (b) True
  6. 6.True or false: drawing up a well bucket is a pull. (a) False (b) True
  7. 7.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
  9. 9.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
  10. 10.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
  11. 11.True or false: pulling up your socks is a push. (a) False (b) True
  12. 12.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  13. 13.💪 Two children push a box to the right, one with 50 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  14. 14.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  15. 15.True or false: closing a drawer is a pull. (a) True (b) False
  16. 16.True or false: hitting a cricket ball is a push. (a) False (b) True
  17. 17.💪 Two children push a box to the right, one with 95 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 Two children push a box to the right, one with 10 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  19. 19.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a compass needle turns (c) rain falls to the ground (d) rubbing hands warms them
  20. 20.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  22. 22.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  23. 23.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  24. 24.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  25. 25.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
  26. 26.True or false: pushing a swing is a push. (a) True (b) False
  27. 27.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
  28. 28.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  29. 29.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  30. 30.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
  31. 31.True or false: pushing a trolley is a push. (a) True (b) False
  32. 32.💪 Two children push a box to the right, one with 95 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  33. 33.True or false: pulling a cart is a pull. (a) False (b) True
  34. 34.True or false: a tug of war is a push. (a) False (b) True
  35. 35.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.True or false: plucking a mango is a pull. (a) False (b) True
  37. 37.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
  38. 38.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  39. 39.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right

Answer key

  1. a push
  2. newton (N)
  3. False
  4. False
  5. False
  6. True
  7. 600
  8. push or a pull
  9. change its colour
  10. friction
  11. False
  12. 10
  13. 135
  14. a push
  15. False
  16. True
  17. 180
  18. 40
  19. a compass needle turns
  20. 520
  21. to the left
  22. a push
  23. 60
  24. a pull
  25. gravity
  26. True
  27. friction
  28. a push
  29. a push
  30. friction
  31. True
  32. 185
  33. True
  34. False
  35. 59
  36. True
  37. balanced
  38. a pull
  39. 26
  40. to the right

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