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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 173 · 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 pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
  2. 2.True or false: drawing up a well bucket is a push. (a) True (b) False
  3. 3.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) muscular force (d) gravity
  4. 4.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  5. 5.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  6. 6.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
  8. 8.True or false: pushing a swing is a pull. (a) True (b) False
  9. 9.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  11. 11.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  14. 14.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.True or false: closing a drawer is a push. (a) True (b) False
  16. 16.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) friction (c) magnetic force (d) muscular force
  17. 17.💪 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
  18. 18.True or false: pulling a cart is a push. (a) True (b) False
  19. 19.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  20. 20.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  21. 21.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
  22. 22.True or false: closing a drawer is a pull. (a) True (b) False
  23. 23.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a fridge magnet sticks (c) an apple falls down (d) shoes grip the floor
  24. 24.True or false: hitting a cricket ball is a push. (a) False (b) True
  25. 25.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
  26. 26.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  28. 28.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 Which force is at work: shoes grip the floor? (a) gravity (b) magnetic force (c) muscular force (d) friction
  30. 30.True or false: drawing up a well bucket is a pull. (a) False (b) True
  31. 31.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) muscular force (d) gravity
  32. 32.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Two children push a box to the right, one with 95 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  35. 35.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  36. 36.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
  37. 37.True or false: a tug of war is a pull. (a) True (b) False
  38. 38.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
  39. 39.💪 A force is a … (a) unit of time (b) push or a pull (c) type of sound (d) kind of colour
  40. 40.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left

Answer key

  1. gravity
  2. False
  3. gravity
  4. 10
  5. a pull
  6. 580
  7. gravity
  8. False
  9. a pull
  10. a push
  11. 240
  12. 20
  13. a push
  14. 10
  15. True
  16. magnetic force
  17. to the right
  18. False
  19. to the right
  20. a push
  21. change its colour
  22. False
  23. a fridge magnet sticks
  24. True
  25. 10
  26. a push
  27. a push
  28. 420
  29. friction
  30. True
  31. friction
  32. 12
  33. 180
  34. gravity
  35. a pull
  36. balanced
  37. True
  38. gravity
  39. push or a pull
  40. to the right

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