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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 168 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
  2. 2.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
  4. 4.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a magnet picks up pins (c) a river flows downhill (d) an apple falls down
  5. 5.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
  6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  7. 7.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
  8. 8.💪 Which force is at work: squeezing a lemon? (a) gravity (b) muscular force (c) magnetic force (d) friction
  9. 9.💪 Two children push a box to the right, one with 60 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
  11. 11.True or false: opening a drawer is a pull. (a) True (b) False
  12. 12.💪 Two children push a box to the right, one with 35 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  13. 13.Which of these is caused by muscular force? (a) a compass needle turns (b) lifting a school bag (c) a river flows downhill (d) rain falls to the ground
  14. 14.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) rubbing hands warms them (c) squeezing a lemon (d) a fridge magnet sticks
  15. 15.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  16. 16.💪 Two children push a box to the right, one with 75 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  17. 17.True or false: plucking a mango is a pull. (a) True (b) False
  18. 18.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) friction (d) muscular force
  19. 19.💪 Two children push a box to the right, one with 85 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  20. 20.Which of these is caused by muscular force? (a) a river flows downhill (b) an apple falls down (c) pedalling a cycle (d) rain falls to the ground
  21. 21.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
  22. 22.True or false: a tug of war is a push. (a) False (b) True
  23. 23.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  24. 24.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  25. 25.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  27. 27.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  29. 29.Which of these is caused by gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) brakes stop a bicycle (d) a thrown ball comes down
  30. 30.💪 Two children push a box to the right, one with 60 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  31. 31.Which of these is caused by magnetic force? (a) lifting a school bag (b) a thrown ball comes down (c) a fridge magnet sticks (d) brakes stop a bicycle
  32. 32.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
  34. 34.💪 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) to the right (b) no net force (c) to the left
  35. 35.True or false: closing a drawer is a push. (a) True (b) False
  36. 36.💪 Two children push a box to the right, one with 5 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  39. 39.True or false: pushing a swing is a pull. (a) True (b) False
  40. 40.True or false: closing a drawer is a pull. (a) False (b) True

Answer key

  1. balanced
  2. 30
  3. push or a pull
  4. a magnet picks up pins
  5. magnetic force
  6. a push
  7. friction
  8. muscular force
  9. 130
  10. friction
  11. True
  12. 95
  13. lifting a school bag
  14. squeezing a lemon
  15. a pull
  16. 80
  17. True
  18. magnetic force
  19. 140
  20. pedalling a cycle
  21. change its colour
  22. False
  23. a pull
  24. to the left
  25. 40
  26. 5
  27. 10
  28. muscular force
  29. a thrown ball comes down
  30. 95
  31. a fridge magnet sticks
  32. 50
  33. gravity
  34. to the left
  35. True
  36. 55
  37. 13
  38. a push
  39. False
  40. False

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