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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 807 · 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 a tug of war a push or a pull? (a) a pull (b) a push
  2. 2.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) magnetic force (d) muscular force
  3. 3.Which of these is caused by muscular force? (a) an apple falls down (b) rain falls to the ground (c) a rolling ball slows (d) squeezing a lemon
  4. 4.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) gravity (c) friction (d) magnetic force
  5. 5.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.True or false: pulling up your socks is a pull. (a) True (b) False
  8. 8.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
  9. 9.True or false: hitting a cricket ball is a pull. (a) True (b) False
  10. 10.💪 Two children push a box to the right, one with 55 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  11. 11.💪 Two children push a box to the right, one with 90 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  12. 12.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
  13. 13.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) lifting a school bag (c) a fridge magnet sticks (d) a rolling ball slows
  14. 14.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  15. 15.💪 Two children push a box to the right, one with 20 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  16. 16.True or false: opening a drawer is a push. (a) False (b) True
  17. 17.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  18. 18.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a magnet picks up pins (c) a river flows downhill (d) squeezing a lemon
  19. 19.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  20. 20.True or false: pushing a swing is a pull. (a) True (b) False
  21. 21.💪 A cart is pulled to the right with 20 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  22. 22.💪 Two children push a box to the right, one with 35 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  23. 23.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
  24. 24.True or false: pulling a cart is a pull. (a) False (b) True
  25. 25.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  29. 29.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
  30. 30.Which of these is caused by muscular force? (a) a compass needle turns (b) a thrown ball comes down (c) shoes grip the floor (d) pedalling a cycle
  31. 31.True or false: closing a drawer is a pull. (a) False (b) True
  32. 32.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
  33. 33.Which of these is caused by gravity? (a) lifting a school bag (b) a rolling ball slows (c) rain falls to the ground (d) brakes stop a bicycle
  34. 34.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
  35. 35.Which of these is caused by gravity? (a) a river flows downhill (b) lifting a school bag (c) a rolling ball slows (d) squeezing a lemon
  36. 36.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
  37. 37.💪 A bag has a mass of 25 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  39. 39.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  40. 40.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push

Answer key

  1. a pull
  2. gravity
  3. squeezing a lemon
  4. muscular force
  5. 260
  6. 2
  7. True
  8. gravity
  9. False
  10. 70
  11. 175
  12. friction
  13. a fridge magnet sticks
  14. 20
  15. 120
  16. False
  17. a push
  18. a magnet picks up pins
  19. a pull
  20. False
  21. to the left
  22. 45
  23. balanced
  24. True
  25. 270
  26. 10
  27. 59
  28. push or a pull
  29. friction
  30. pedalling a cycle
  31. False
  32. gravity
  33. rain falls to the ground
  34. newton (N)
  35. a river flows downhill
  36. friction
  37. 250
  38. 10
  39. a push
  40. a pull

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