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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 896 · 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: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  2. 2.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
  3. 3.True or false: opening a drawer is a pull. (a) True (b) False
  4. 4.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  5. 5.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  6. 6.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  7. 7.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.Which of these is caused by friction? (a) brakes stop a bicycle (b) a thrown ball comes down (c) pedalling a cycle (d) lifting a school bag
  10. 10.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.True or false: closing a drawer is a pull. (a) True (b) False
  12. 12.💪 Which force is at work: a rolling ball slows? (a) gravity (b) magnetic force (c) muscular force (d) friction
  13. 13.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  14. 14.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
  15. 15.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
  16. 16.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  17. 17.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  18. 18.💪 A cart is pulled to the right with 35 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
  19. 19.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) gravity (d) magnetism
  20. 20.💪 Two children push a box to the right, one with 25 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
  22. 22.True or false: pressing a doorbell is a pull. (a) True (b) False
  23. 23.Which of these is caused by muscular force? (a) an apple falls down (b) a thrown ball comes down (c) brakes stop a bicycle (d) squeezing a lemon
  24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
  25. 25.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  26. 26.True or false: closing a drawer is a push. (a) False (b) True
  27. 27.True or false: kicking a football is a pull. (a) True (b) False
  28. 28.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  29. 29.Which of these is caused by gravity? (a) a thrown ball comes down (b) brakes stop a bicycle (c) lifting a school bag (d) pedalling a cycle
  30. 30.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) muscular force (c) friction (d) gravity
  31. 31.True or false: pressing a doorbell is a push. (a) False (b) True
  32. 32.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
  33. 33.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  34. 34.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  35. 35.True or false: opening a drawer is a push. (a) True (b) False
  36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  37. 37.True or false: pushing a trolley is a push. (a) False (b) True
  38. 38.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  39. 39.True or false: pulling up your socks is a push. (a) True (b) False
  40. 40.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push

Answer key

  1. gravity
  2. muscular force
  3. True
  4. a pull
  5. a push
  6. a push
  7. 180
  8. 26
  9. brakes stop a bicycle
  10. 39
  11. False
  12. friction
  13. a pull
  14. newton (N)
  15. friction
  16. a pull
  17. 10
  18. to the right
  19. gravity
  20. 115
  21. gravity
  22. False
  23. squeezing a lemon
  24. balanced
  25. gravity
  26. True
  27. False
  28. to the right
  29. a thrown ball comes down
  30. magnetic force
  31. True
  32. muscular force
  33. a push
  34. a push
  35. False
  36. a pull
  37. True
  38. a pull
  39. False
  40. a pull

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