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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 552 · 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.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  2. 2.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.Which of these is caused by muscular force? (a) a compass needle turns (b) a fridge magnet sticks (c) lifting a school bag (d) a thrown ball comes down
  4. 4.True or false: drawing up a well bucket is a pull. (a) False (b) True
  5. 5.True or false: plucking a mango is a push. (a) False (b) True
  6. 6.True or false: pushing a trolley is a pull. (a) False (b) True
  7. 7.True or false: closing a drawer is a pull. (a) False (b) True
  8. 8.💪 Two children push a box to the right, one with 5 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
  10. 10.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  11. 11.💪 A cart is pulled to the right with 75 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  12. 12.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
  14. 14.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  15. 15.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 A cart is pulled to the right with 70 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  17. 17.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
  18. 18.💪 Two children push a box to the right, one with 30 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  20. 20.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  21. 21.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
  25. 25.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  26. 26.True or false: pulling up your socks is a push. (a) False (b) True
  27. 27.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  28. 28.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  29. 29.True or false: pulling a cart is a push. (a) False (b) True
  30. 30.Which of these is caused by gravity? (a) brakes stop a bicycle (b) squeezing a lemon (c) a magnet picks up pins (d) a river flows downhill
  31. 31.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity
  32. 32.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  33. 33.True or false: pulling a cart is a pull. (a) False (b) True
  34. 34.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
  35. 35.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  36. 36.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  38. 38.Which of these is caused by friction? (a) pedalling a cycle (b) lifting a school bag (c) squeezing a lemon (d) a rolling ball slows
  39. 39.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push

Answer key

  1. 20
  2. 120
  3. lifting a school bag
  4. True
  5. False
  6. False
  7. False
  8. 20
  9. newton (N)
  10. 5
  11. no net force
  12. a pull
  13. balanced
  14. a pull
  15. 33
  16. to the left
  17. 20
  18. 120
  19. push or a pull
  20. a pull
  21. 23
  22. 8
  23. 450
  24. gravity
  25. 5
  26. False
  27. a push
  28. change its colour
  29. False
  30. a river flows downhill
  31. magnetic force
  32. to the right
  33. True
  34. muscular force
  35. a push
  36. 58
  37. a pull
  38. a rolling ball slows
  39. a push
  40. a pull

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