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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 227 · 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: a magnet picks up pins? (a) gravity (b) muscular force (c) friction (d) magnetic force
  2. 2.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  3. 3.True or false: kicking a football is a pull. (a) False (b) True
  4. 4.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a river flows downhill (c) lifting a school bag (d) shoes grip the floor
  6. 6.True or false: drawing up a well bucket is a pull. (a) False (b) True
  7. 7.💪 A bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) magnetic force (d) muscular force
  9. 9.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  10. 10.True or false: opening a drawer is a push. (a) True (b) False
  11. 11.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  12. 12.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  13. 13.Which of these is caused by magnetic force? (a) a rolling ball slows (b) squeezing a lemon (c) lifting a school bag (d) a compass needle turns
  14. 14.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  16. 16.💪 Two children push a box to the right, one with 90 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  17. 17.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a rolling ball slows (d) rain falls to the ground
  18. 18.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.True or false: pressing a doorbell is a push. (a) True (b) False
  20. 20.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  21. 21.💪 Two children push a box to the right, one with 10 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  22. 22.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) rubbing hands warms them (d) a thrown ball comes down
  23. 23.Which of these is caused by gravity? (a) rubbing hands warms them (b) an apple falls down (c) squeezing a lemon (d) a magnet picks up pins
  24. 24.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.True or false: closing a drawer is a pull. (a) False (b) True
  26. 26.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) magnetic force (d) friction
  28. 28.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  29. 29.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  32. 32.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) magnetic force (d) gravity
  33. 33.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  34. 34.True or false: plucking a mango is a push. (a) True (b) False
  35. 35.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  37. 37.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) rubbing hands warms them (c) pedalling a cycle (d) brakes stop a bicycle
  38. 38.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  39. 39.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  40. 40.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape

Answer key

  1. magnetic force
  2. push or a pull
  3. False
  4. 24
  5. lifting a school bag
  6. True
  7. 570
  8. gravity
  9. to the left
  10. False
  11. a push
  12. a push
  13. a compass needle turns
  14. 440
  15. a push
  16. 165
  17. rain falls to the ground
  18. 100
  19. True
  20. a pull
  21. 20
  22. a thrown ball comes down
  23. an apple falls down
  24. 260
  25. False
  26. 60
  27. muscular force
  28. 5
  29. 70
  30. 56
  31. 50
  32. magnetic force
  33. 5
  34. False
  35. 7
  36. friction
  37. a magnet picks up pins
  38. a push
  39. 40
  40. change its colour

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