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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 669 · 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.True or false: opening a drawer is a pull. (a) False (b) True
  2. 2.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
  3. 3.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  4. 4.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  5. 5.True or false: closing a drawer is a push. (a) False (b) True
  6. 6.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
  8. 8.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
  9. 9.💪 A force is a … (a) unit of time (b) push or a pull (c) type of sound (d) kind of colour
  10. 10.Which of these is caused by friction? (a) shoes grip the floor (b) a compass needle turns (c) a magnet picks up pins (d) lifting a school bag
  11. 11.True or false: opening a drawer is a push. (a) True (b) False
  12. 12.💪 Two children push a box to the right, one with 10 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 Two children push a box to the right, one with 55 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  14. 14.True or false: pushing a swing is a push. (a) True (b) False
  15. 15.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  16. 16.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  17. 17.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
  18. 18.True or false: pulling a cart is a pull. (a) True (b) False
  19. 19.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) magnetic force (d) muscular force
  20. 20.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
  21. 21.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.Which of these is caused by gravity? (a) pedalling a cycle (b) a compass needle turns (c) an apple falls down (d) shoes grip the floor
  23. 23.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.Which of these is caused by friction? (a) a magnet picks up pins (b) a rolling ball slows (c) a thrown ball comes down (d) an apple falls down
  25. 25.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  26. 26.True or false: pushing a trolley is a push. (a) True (b) False
  27. 27.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
  28. 28.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  30. 30.True or false: a tug of war is a pull. (a) True (b) False
  31. 31.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) magnetic force (d) muscular force
  32. 32.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) friction (d) muscular force
  33. 33.True or false: pulling a cart is a push. (a) True (b) False
  34. 34.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  35. 35.💪 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?
  36. 36.Which of these is caused by gravity? (a) squeezing a lemon (b) a fridge magnet sticks (c) rain falls to the ground (d) pedalling a cycle
  37. 37.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  38. 38.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  39. 39.💪 Two children push a box to the right, one with 20 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull

Answer key

  1. True
  2. change its colour
  3. a pull
  4. 35
  5. True
  6. a push
  7. balanced
  8. newton (N)
  9. push or a pull
  10. shoes grip the floor
  11. False
  12. 20
  13. 60
  14. True
  15. to the right
  16. gravity
  17. magnetic force
  18. True
  19. magnetic force
  20. gravity
  21. 160
  22. an apple falls down
  23. 22
  24. a rolling ball slows
  25. a pull
  26. True
  27. 10
  28. 36
  29. a pull
  30. True
  31. muscular force
  32. friction
  33. False
  34. a push
  35. 70
  36. rain falls to the ground
  37. friction
  38. 40
  39. 25
  40. a push

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