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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 333 · 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 box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  2. 2.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) friction (d) magnetic force
  3. 3.True or false: pushing a swing is a pull. (a) True (b) False
  4. 4.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  5. 5.💪 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) no net force (b) to the right (c) to the left
  6. 6.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  7. 7.True or false: pushing a trolley is a pull. (a) False (b) True
  8. 8.💪 Two children push a box to the right, one with 30 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  10. 10.True or false: plucking a mango is a push. (a) False (b) True
  11. 11.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  12. 12.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  14. 14.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a magnet picks up pins (c) a thrown ball comes down (d) lifting a school bag
  15. 15.💪 Two children push a box to the right, one with 60 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  16. 16.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
  17. 17.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
  18. 18.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) magnetic force (d) muscular force
  19. 19.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  20. 20.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  21. 21.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  23. 23.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  24. 24.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) metre (m) (d) litre (L)
  25. 25.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) friction (d) wind
  26. 26.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  27. 27.True or false: pulling up your socks is a pull. (a) False (b) True
  28. 28.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  29. 29.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) friction (d) magnetic force
  30. 30.💪 Two children push a box to the right, one with 95 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: hitting a cricket ball is a push. (a) False (b) True
  32. 32.💪 Two children push a box to the right, one with 65 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  34. 34.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) gravity (d) muscular force
  35. 35.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  36. 36.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 A cart is pulled to the right with 95 N and to the left with 110 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  38. 38.True or false: hitting a cricket ball is a pull. (a) True (b) False
  39. 39.True or false: pressing a doorbell is a pull. (a) False (b) True
  40. 40.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. 31
  2. magnetic force
  3. False
  4. 45
  5. to the left
  6. to the right
  7. False
  8. 55
  9. push or a pull
  10. False
  11. a push
  12. 56
  13. a pull
  14. a thrown ball comes down
  15. 160
  16. 10
  17. balanced
  18. muscular force
  19. a pull
  20. a push
  21. 410
  22. change its colour
  23. a pull
  24. newton (N)
  25. gravity
  26. a pull
  27. True
  28. a push
  29. friction
  30. 145
  31. True
  32. 70
  33. a push
  34. friction
  35. a pull
  36. 330
  37. to the left
  38. False
  39. False
  40. 40

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