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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 33 · 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.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  2. 2.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  3. 3.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
  4. 4.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  5. 5.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  6. 6.💪 Two children push a box to the right, one with 30 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  7. 7.True or false: plucking a mango is a push. (a) False (b) True
  8. 8.💪 Two children push a box to the right, one with 25 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
  10. 10.True or false: pressing a doorbell is a push. (a) True (b) False
  11. 11.Which of these is caused by magnetic force? (a) a river flows downhill (b) rain falls to the ground (c) a fridge magnet sticks (d) a thrown ball comes down
  12. 12.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
  14. 14.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  15. 15.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  17. 17.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
  18. 18.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  20. 20.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a river flows downhill (c) a thrown ball comes down (d) a magnet picks up pins
  21. 21.💪 Two children push a box to the right, one with 20 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 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) no net force (b) to the right (c) to the left
  23. 23.Which of these is caused by gravity? (a) rain falls to the ground (b) brakes stop a bicycle (c) rubbing hands warms them (d) shoes grip the floor
  24. 24.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  25. 25.True or false: pushing a swing is a push. (a) True (b) False
  26. 26.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  27. 27.Which of these is caused by muscular force? (a) a river flows downhill (b) a compass needle turns (c) lifting a school bag (d) a fridge magnet sticks
  28. 28.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  29. 29.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
  31. 31.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  32. 32.Which of these is caused by gravity? (a) pedalling a cycle (b) shoes grip the floor (c) a thrown ball comes down (d) a compass needle turns
  33. 33.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
  34. 34.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
  35. 35.Which of these is caused by muscular force? (a) a rolling ball slows (b) a compass needle turns (c) pedalling a cycle (d) shoes grip the floor
  36. 36.True or false: closing a drawer is a pull. (a) True (b) False
  37. 37.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a rolling ball slows (c) squeezing a lemon (d) a compass needle turns
  38. 38.Which of these is caused by gravity? (a) an apple falls down (b) brakes stop a bicycle (c) lifting a school bag (d) a rolling ball slows
  39. 39.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
  40. 40.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. 25
  2. a pull
  3. magnetic force
  4. to the left
  5. a pull
  6. 85
  7. False
  8. 40
  9. push or a pull
  10. True
  11. a fridge magnet sticks
  12. 53
  13. gravity
  14. a push
  15. 10
  16. 30
  17. muscular force
  18. 140
  19. a push
  20. a magnet picks up pins
  21. 115
  22. no net force
  23. rain falls to the ground
  24. gravity
  25. True
  26. a push
  27. lifting a school bag
  28. a push
  29. 38
  30. newton (N)
  31. a pull
  32. a thrown ball comes down
  33. magnetic force
  34. muscular force
  35. pedalling a cycle
  36. False
  37. a compass needle turns
  38. an apple falls down
  39. balanced
  40. 130

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