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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 429 · 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: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
  2. 2.Which of these is caused by friction? (a) rubbing hands warms them (b) a fridge magnet sticks (c) lifting a school bag (d) a magnet picks up pins
  3. 3.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  4. 4.True or false: pushing a trolley is a pull. (a) True (b) False
  5. 5.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  7. 7.💪 A cart is pulled to the right with 85 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  8. 8.True or false: opening a drawer is a push. (a) True (b) False
  9. 9.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  11. 11.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.Which of these is caused by muscular force? (a) a rolling ball slows (b) pedalling a cycle (c) a magnet picks up pins (d) shoes grip the floor
  13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
  14. 14.Which of these is caused by friction? (a) a rolling ball slows (b) a magnet picks up pins (c) lifting a school bag (d) pedalling a cycle
  15. 15.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
  16. 16.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.True or false: kicking a football is a push. (a) True (b) False
  18. 18.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  20. 20.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  21. 21.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
  22. 22.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
  23. 23.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  24. 24.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  25. 25.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) magnetic force (d) gravity
  26. 26.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 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?
  28. 28.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.True or false: pushing a swing is a push. (a) False (b) True
  30. 30.💪 A cart is pulled to the right with 85 N and to the left with 100 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  31. 31.💪 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) no net force (c) to the right
  32. 32.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
  33. 33.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
  34. 34.True or false: pressing a doorbell is a pull. (a) False (b) True
  35. 35.Which of these is caused by gravity? (a) squeezing a lemon (b) a rolling ball slows (c) lifting a school bag (d) an apple falls down
  36. 36.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  37. 37.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  38. 38.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) gravity (d) friction
  39. 39.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  40. 40.Which of these is caused by magnetic force? (a) rain falls to the ground (b) shoes grip the floor (c) an apple falls down (d) a magnet picks up pins

Answer key

  1. friction
  2. rubbing hands warms them
  3. a pull
  4. False
  5. 70
  6. newton (N)
  7. to the left
  8. False
  9. 43
  10. a push
  11. 60
  12. pedalling a cycle
  13. True
  14. a rolling ball slows
  15. balanced
  16. 130
  17. True
  18. 210
  19. a pull
  20. a push
  21. push or a pull
  22. 5
  23. a pull
  24. gravity
  25. muscular force
  26. 4
  27. 130
  28. 55
  29. True
  30. to the left
  31. to the right
  32. gravity
  33. change its colour
  34. False
  35. an apple falls down
  36. a push
  37. 25
  38. friction
  39. a push
  40. a magnet picks up pins

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