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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 499 · 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.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  2. 2.💪 Two children push a box to the right, one with 85 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  3. 3.True or false: opening a drawer is a push. (a) True (b) False
  4. 4.💪 Two children push a box to the right, one with 90 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  5. 5.Which of these is caused by friction? (a) shoes grip the floor (b) rain falls to the ground (c) squeezing a lemon (d) a thrown ball comes down
  6. 6.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  7. 7.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
  9. 9.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  11. 11.Which of these is caused by muscular force? (a) an apple falls down (b) brakes stop a bicycle (c) a thrown ball comes down (d) squeezing a lemon
  12. 12.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.💪 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?
  14. 14.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
  15. 15.💪 A cart is pulled to the right with 60 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  16. 16.True or false: kicking a football is a push. (a) True (b) False
  17. 17.True or false: pushing a trolley is a push. (a) True (b) False
  18. 18.Which of these is caused by gravity? (a) rubbing hands warms them (b) rain falls to the ground (c) a magnet picks up pins (d) a rolling ball slows
  19. 19.💪 Two children push a box to the right, one with 15 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  20. 20.Which of these is caused by magnetic force? (a) a compass needle turns (b) a thrown ball comes down (c) squeezing a lemon (d) shoes grip the floor
  21. 21.💪 A cart is pulled to the right with 85 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  22. 22.Which of these is caused by muscular force? (a) a thrown ball comes down (b) rubbing hands warms them (c) lifting a school bag (d) a magnet picks up pins
  23. 23.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  24. 24.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  25. 25.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 Two children push a box to the right, one with 15 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  27. 27.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) gravity (c) muscular force (d) friction
  29. 29.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
  30. 30.True or false: pushing a trolley is a pull. (a) True (b) False
  31. 31.Which of these is caused by friction? (a) rubbing hands warms them (b) pedalling a cycle (c) a river flows downhill (d) a magnet picks up pins
  32. 32.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) friction (d) muscular force
  33. 33.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  34. 34.💪 Two children push a box to the right, one with 40 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 Two children push a box to the right, one with 80 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  36. 36.True or false: a tug of war is a push. (a) True (b) False
  37. 37.Which of these is caused by muscular force? (a) a magnet picks up pins (b) an apple falls down (c) a river flows downhill (d) pedalling a cycle
  38. 38.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  39. 39.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  40. 40.💪 Two children push a box to the right, one with 55 N and the other with 95 N. What is the net (total) force on the box, in newtons?

Answer key

  1. a push
  2. 95
  3. False
  4. 135
  5. shoes grip the floor
  6. a push
  7. 170
  8. push or a pull
  9. a push
  10. a pull
  11. squeezing a lemon
  12. 310
  13. 5
  14. newton (N)
  15. to the right
  16. True
  17. True
  18. rain falls to the ground
  19. 20
  20. a compass needle turns
  21. to the right
  22. lifting a school bag
  23. gravity
  24. 25
  25. 44
  26. 95
  27. 24
  28. muscular force
  29. gravity
  30. False
  31. rubbing hands warms them
  32. magnetic force
  33. 45
  34. 135
  35. 175
  36. False
  37. pedalling a cycle
  38. gravity
  39. no net force
  40. 150

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