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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 343 · 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 compass needle turns? (a) friction (b) muscular force (c) magnetic force (d) gravity
  2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  3. 3.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 A cart is pulled to the right with 85 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  5. 5.Which of these is caused by friction? (a) a compass needle turns (b) shoes grip the floor (c) a magnet picks up pins (d) a thrown ball comes down
  6. 6.💪 A cart is pulled to the right with 75 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  7. 7.Which of these is caused by gravity? (a) rain falls to the ground (b) a magnet picks up pins (c) a compass needle turns (d) a rolling ball slows
  8. 8.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a compass needle turns (c) brakes stop a bicycle (d) an apple falls down
  9. 9.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) friction (d) wind
  10. 10.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  11. 11.True or false: pulling up your socks is a push. (a) True (b) False
  12. 12.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
  13. 13.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.💪 Two children push a box to the right, one with 85 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 Two children push a box to the right, one with 20 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  17. 17.True or false: pressing a doorbell is a push. (a) False (b) True
  18. 18.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  19. 19.Which of these is caused by muscular force? (a) shoes grip the floor (b) a river flows downhill (c) lifting a school bag (d) a thrown ball comes down
  20. 20.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  21. 21.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.True or false: a tug of war is a pull. (a) False (b) True
  23. 23.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  24. 24.True or false: hitting a cricket ball is a push. (a) False (b) True
  25. 25.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  26. 26.Which of these is caused by gravity? (a) a river flows downhill (b) squeezing a lemon (c) lifting a school bag (d) brakes stop a bicycle
  27. 27.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.True or false: pressing a doorbell is a pull. (a) True (b) False
  29. 29.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  30. 30.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  31. 31.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  32. 32.True or false: plucking a mango is a pull. (a) True (b) False
  33. 33.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
  34. 34.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  35. 35.💪 Two children push a box to the right, one with 65 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  36. 36.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) muscular force (d) magnetic force
  37. 37.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  39. 39.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull

Answer key

  1. magnetic force
  2. balanced
  3. 110
  4. no net force
  5. shoes grip the floor
  6. no net force
  7. rain falls to the ground
  8. a compass needle turns
  9. gravity
  10. a push
  11. False
  12. change its colour
  13. 43
  14. 110
  15. 580
  16. 70
  17. True
  18. a pull
  19. lifting a school bag
  20. a push
  21. 70
  22. True
  23. 15
  24. True
  25. 30
  26. a river flows downhill
  27. 19
  28. False
  29. 55
  30. newton (N)
  31. 10
  32. True
  33. magnetic force
  34. 15
  35. 130
  36. friction
  37. 400
  38. 3
  39. 180
  40. a pull

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