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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 132 · 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) an apple falls down (b) pedalling a cycle (c) rubbing hands warms them (d) a fridge magnet sticks
  2. 2.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
  3. 3.💪 Two children push a box to the right, one with 40 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  5. 5.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  6. 6.Which of these is caused by magnetic force? (a) a river flows downhill (b) a fridge magnet sticks (c) rubbing hands warms them (d) squeezing a lemon
  7. 7.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
  8. 8.True or false: pulling a cart is a pull. (a) True (b) False
  9. 9.Which of these is caused by muscular force? (a) a river flows downhill (b) squeezing a lemon (c) a magnet picks up pins (d) a thrown ball comes down
  10. 10.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  11. 11.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  12. 12.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  13. 13.True or false: pulling a cart is a push. (a) True (b) False
  14. 14.True or false: kicking a football is a pull. (a) False (b) True
  15. 15.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) magnetic force (d) muscular force
  16. 16.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
  17. 17.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  18. 18.Which of these is caused by friction? (a) rain falls to the ground (b) a thrown ball comes down (c) a compass needle turns (d) brakes stop a bicycle
  19. 19.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  20. 20.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) gravity (d) friction
  22. 22.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 Two children push a box to the right, one with 90 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  24. 24.True or false: pulling up your socks is a pull. (a) False (b) True
  25. 25.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
  26. 26.True or false: closing a drawer is a push. (a) True (b) False
  27. 27.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  29. 29.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  30. 30.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
  32. 32.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  33. 33.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  34. 34.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  35. 35.💪 Two children push a box to the right, one with 55 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.💪 Two children push a box to the right, one with 50 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  38. 38.Which of these is caused by magnetic force? (a) pedalling a cycle (b) brakes stop a bicycle (c) a magnet picks up pins (d) lifting a school bag
  39. 39.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 85 N. What is the size of the net force, in newtons?
  40. 40.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 75 N. What is the size of the net force, in newtons?

Answer key

  1. an apple falls down
  2. friction
  3. 140
  4. 70
  5. to the left
  6. a fridge magnet sticks
  7. change its colour
  8. True
  9. squeezing a lemon
  10. 5
  11. a pull
  12. 100
  13. False
  14. False
  15. friction
  16. magnetic force
  17. a push
  18. brakes stop a bicycle
  19. a pull
  20. 370
  21. gravity
  22. 220
  23. 130
  24. True
  25. muscular force
  26. True
  27. 4
  28. a pull
  29. a push
  30. 550
  31. push or a pull
  32. friction
  33. gravity
  34. a push
  35. 85
  36. 46
  37. 90
  38. a magnet picks up pins
  39. 10
  40. 20

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