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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 626 · 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 cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  2. 2.Which of these is caused by magnetic force? (a) a compass needle turns (b) an apple falls down (c) rubbing hands warms them (d) shoes grip the floor
  3. 3.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
  4. 4.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
  5. 5.💪 A cart is pulled to the right with 35 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
  6. 6.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  7. 7.True or false: opening a drawer is a push. (a) False (b) True
  8. 8.True or false: closing a drawer is a push. (a) False (b) True
  9. 9.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  11. 11.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) stop it moving (d) start it moving
  12. 12.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
  13. 13.True or false: pushing a trolley is a push. (a) False (b) True
  14. 14.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  15. 15.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  16. 16.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  18. 18.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
  19. 19.True or false: plucking a mango is a pull. (a) True (b) False
  20. 20.True or false: pressing a doorbell is a pull. (a) False (b) True
  21. 21.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  22. 22.True or false: pulling a cart is a push. (a) True (b) False
  23. 23.True or false: hitting a cricket ball is a push. (a) True (b) False
  24. 24.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  25. 25.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) a magnet picks up pins (d) a rolling ball slows
  27. 27.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) lifting a school bag (c) a thrown ball comes down (d) a magnet picks up pins
  28. 28.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  29. 29.💪 Two children push a box to the right, one with 50 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 Two children push a box to the right, one with 25 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  32. 32.True or false: kicking a football is a pull. (a) True (b) False
  33. 33.True or false: opening a drawer is a pull. (a) False (b) True
  34. 34.True or false: pulling a cart is a pull. (a) True (b) False
  35. 35.💪 Two children push a box to the right, one with 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 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
  39. 39.True or false: drawing up a well bucket is a pull. (a) False (b) True
  40. 40.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force

Answer key

  1. to the right
  2. a compass needle turns
  3. push or a pull
  4. muscular force
  5. to the left
  6. a pull
  7. False
  8. True
  9. a pull
  10. a push
  11. change its colour
  12. newton (N)
  13. True
  14. a pull
  15. balanced
  16. a pull
  17. a push
  18. friction
  19. True
  20. False
  21. 15
  22. False
  23. True
  24. a pull
  25. 390
  26. a thrown ball comes down
  27. a magnet picks up pins
  28. gravity
  29. 55
  30. 60
  31. a push
  32. False
  33. True
  34. True
  35. 95
  36. 500
  37. 56
  38. to the right
  39. True
  40. to the right

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