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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 607 · 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 of these is caused by friction? (a) a rolling ball slows (b) a river flows downhill (c) a fridge magnet sticks (d) pedalling a cycle
  2. 2.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
  3. 3.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  4. 4.True or false: pushing a trolley is a pull. (a) False (b) True
  5. 5.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  6. 6.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) gravity (d) magnetic force
  7. 7.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
  9. 9.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) gravity (d) muscular force
  10. 10.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
  11. 11.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.💪 A cart is pulled to the right with 80 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
  13. 13.💪 Two children push a box to the right, one with 70 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  14. 14.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  15. 15.True or false: pulling up your socks is a push. (a) True (b) False
  16. 16.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  17. 17.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  18. 18.True or false: closing a drawer is a push. (a) False (b) True
  19. 19.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a fridge magnet sticks (c) squeezing a lemon (d) a rolling ball slows
  20. 20.💪 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) to the left (b) no net force (c) to the right
  21. 21.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
  22. 22.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
  23. 23.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  24. 24.💪 Two children push a box to the right, one with 30 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  25. 25.True or false: hitting a cricket ball is a pull. (a) True (b) False
  26. 26.💪 Two children push a box to the right, one with 95 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  27. 27.💪 Two children push a box to the right, one with 10 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  29. 29.True or false: pushing a trolley is a push. (a) True (b) False
  30. 30.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  31. 31.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
  33. 33.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  34. 34.💪 A cart is pulled to the right with 25 N and to the left with 20 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  35. 35.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  36. 36.True or false: pressing a doorbell is a push. (a) False (b) True
  37. 37.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  38. 38.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  39. 39.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull

Answer key

  1. a rolling ball slows
  2. muscular force
  3. change its colour
  4. False
  5. to the left
  6. magnetic force
  7. 60
  8. balanced
  9. muscular force
  10. friction
  11. 15
  12. to the right
  13. 90
  14. newton (N)
  15. False
  16. a pull
  17. push or a pull
  18. True
  19. a fridge magnet sticks
  20. to the right
  21. gravity
  22. friction
  23. a pull
  24. 105
  25. False
  26. 130
  27. 70
  28. a push
  29. True
  30. gravity
  31. 600
  32. friction
  33. a pull
  34. to the right
  35. a push
  36. True
  37. 5
  38. a push
  39. a pull
  40. a pull

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