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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 456 · 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 gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) a thrown ball comes down (d) brakes stop a bicycle
  2. 2.💪 A cart is pulled to the right with 50 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  3. 3.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  4. 4.💪 Two children push a box to the right, one with 85 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) friction (d) magnetism
  6. 6.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a fridge magnet sticks (c) squeezing a lemon (d) brakes stop a bicycle
  7. 7.True or false: drawing up a well bucket is a push. (a) True (b) False
  8. 8.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) muscular force (d) magnetic force
  9. 9.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  10. 10.True or false: pulling a cart is a pull. (a) False (b) True
  11. 11.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  12. 12.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  13. 13.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  14. 14.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  16. 16.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  17. 17.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  18. 18.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  19. 19.💪 A cart is pulled to the right with 75 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  20. 20.True or false: kicking a football is a pull. (a) True (b) False
  21. 21.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
  22. 22.💪 Two children push a box to the right, one with 40 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 Two children push a box to the right, one with 10 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) magnetic force (d) gravity
  26. 26.Which of these is caused by friction? (a) a compass needle turns (b) an apple falls down (c) rain falls to the ground (d) a rolling ball slows
  27. 27.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
  28. 28.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  29. 29.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  30. 30.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
  31. 31.💪 Two children push a box to the right, one with 20 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  33. 33.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  34. 34.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  35. 35.True or false: a tug of war is a pull. (a) True (b) False
  36. 36.True or false: closing a drawer is a push. (a) False (b) True
  37. 37.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  38. 38.Which of these is caused by gravity? (a) a magnet picks up pins (b) a fridge magnet sticks (c) shoes grip the floor (d) a river flows downhill
  39. 39.💪 Two children push a box to the right, one with 60 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. a thrown ball comes down
  2. to the left
  3. 5
  4. 145
  5. gravity
  6. a fridge magnet sticks
  7. False
  8. gravity
  9. a pull
  10. True
  11. change its colour
  12. a pull
  13. 5
  14. 10
  15. 20
  16. 60
  17. to the right
  18. a push
  19. to the right
  20. False
  21. friction
  22. 80
  23. 60
  24. 57
  25. friction
  26. a rolling ball slows
  27. muscular force
  28. push or a pull
  29. a pull
  30. muscular force
  31. 105
  32. 75
  33. a pull
  34. 25
  35. True
  36. True
  37. balanced
  38. a river flows downhill
  39. 100
  40. 80

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