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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 659 · 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: squeezing a lemon? (a) gravity (b) friction (c) magnetic force (d) muscular force
  2. 2.True or false: closing a drawer is a pull. (a) True (b) False
  3. 3.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  4. 4.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  5. 5.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) metre (m) (d) second (s)
  6. 6.True or false: pushing a swing is a push. (a) True (b) False
  7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
  8. 8.💪 A force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
  9. 9.True or false: a tug of war is a push. (a) False (b) True
  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 left (b) no net force (c) to the right
  11. 11.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  12. 12.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
  13. 13.True or false: pushing a trolley is a push. (a) False (b) True
  14. 14.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  15. 15.True or false: pulling a cart is a push. (a) True (b) False
  16. 16.True or false: drawing up a well bucket is a pull. (a) False (b) True
  17. 17.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.True or false: closing a drawer is a push. (a) False (b) True
  19. 19.True or false: opening a drawer is a pull. (a) False (b) True
  20. 20.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  21. 21.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
  23. 23.True or false: plucking a mango is a push. (a) True (b) False
  24. 24.Which of these is caused by muscular force? (a) a river flows downhill (b) a magnet picks up pins (c) a compass needle turns (d) pedalling a cycle
  25. 25.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  26. 26.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  28. 28.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) gravity (d) muscular force
  29. 29.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  30. 30.💪 A cart is pulled to the right with 50 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  31. 31.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  32. 32.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
  34. 34.Which of these is caused by gravity? (a) a thrown ball comes down (b) a magnet picks up pins (c) rubbing hands warms them (d) a fridge magnet sticks
  35. 35.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) magnetic force (c) muscular force (d) friction
  36. 36.True or false: pulling a cart is a pull. (a) True (b) False
  37. 37.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  38. 38.💪 Two children push a box to the right, one with 20 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  39. 39.True or false: pushing a trolley is a pull. (a) False (b) True
  40. 40.💪 A cart is pulled to the right with 75 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force

Answer key

  1. muscular force
  2. False
  3. 10
  4. a pull
  5. newton (N)
  6. True
  7. balanced
  8. push or a pull
  9. False
  10. to the right
  11. 45
  12. friction
  13. True
  14. to the right
  15. False
  16. True
  17. 31
  18. True
  19. True
  20. a pull
  21. 480
  22. gravity
  23. False
  24. pedalling a cycle
  25. a push
  26. a push
  27. a pull
  28. friction
  29. a push
  30. to the left
  31. a push
  32. 20
  33. muscular force
  34. a thrown ball comes down
  35. magnetic force
  36. True
  37. 10
  38. 75
  39. False
  40. to the right

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