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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 927 · 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: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  2. 2.True or false: hitting a cricket ball is a push. (a) True (b) False
  3. 3.True or false: kicking a football is a push. (a) True (b) False
  4. 4.True or false: a tug of war is a pull. (a) True (b) False
  5. 5.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  7. 7.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
  8. 8.True or false: closing a drawer is a pull. (a) True (b) False
  9. 9.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
  11. 11.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) friction (c) muscular force (d) gravity
  14. 14.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
  15. 15.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) pedalling a cycle (c) rain falls to the ground (d) lifting a school bag
  16. 16.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  17. 17.💪 Two children push a box to the right, one with 50 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 Two children push a box to the right, one with 30 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  20. 20.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  21. 21.Which of these is caused by gravity? (a) a compass needle turns (b) an apple falls down (c) lifting a school bag (d) shoes grip the floor
  22. 22.True or false: pushing a swing is a pull. (a) True (b) False
  23. 23.Which of these is caused by muscular force? (a) a river flows downhill (b) a rolling ball slows (c) lifting a school bag (d) a magnet picks up pins
  24. 24.True or false: pushing a swing is a push. (a) True (b) False
  25. 25.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  26. 26.Which of these is caused by gravity? (a) a thrown ball comes down (b) brakes stop a bicycle (c) a compass needle turns (d) a magnet picks up pins
  27. 27.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  28. 28.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) gravity (d) muscular force
  29. 29.Which of these is caused by gravity? (a) pedalling a cycle (b) a fridge magnet sticks (c) brakes stop a bicycle (d) rain falls to the ground
  30. 30.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  31. 31.Which of these is caused by muscular force? (a) a magnet picks up pins (b) pedalling a cycle (c) a fridge magnet sticks (d) an apple falls down
  32. 32.Which of these is caused by magnetic force? (a) a rolling ball slows (b) pedalling a cycle (c) rain falls to the ground (d) a magnet picks up pins
  33. 33.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) muscular force (d) gravity
  34. 34.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) friction (d) gravity
  35. 35.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  36. 36.💪 Two children push a box to the right, one with 75 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  37. 37.Which of these is caused by friction? (a) a compass needle turns (b) rubbing hands warms them (c) squeezing a lemon (d) pedalling a cycle
  38. 38.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  39. 39.True or false: drawing up a well bucket is a push. (a) False (b) True
  40. 40.💪 A cart is pulled to the right with 80 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right

Answer key

  1. gravity
  2. True
  3. True
  4. True
  5. a push
  6. a push
  7. gravity
  8. False
  9. 43
  10. gravity
  11. 390
  12. 20
  13. magnetic force
  14. change its colour
  15. a fridge magnet sticks
  16. 110
  17. 125
  18. 90
  19. 130
  20. 5
  21. an apple falls down
  22. False
  23. lifting a school bag
  24. True
  25. a push
  26. a thrown ball comes down
  27. a pull
  28. friction
  29. rain falls to the ground
  30. a pull
  31. pedalling a cycle
  32. a magnet picks up pins
  33. muscular force
  34. gravity
  35. a push
  36. 100
  37. rubbing hands warms them
  38. 25
  39. False
  40. no net force

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