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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 873 · 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 opening a drawer a push or a pull? (a) a push (b) a pull
  2. 2.Which of these is caused by friction? (a) a rolling ball slows (b) rain falls to the ground (c) a thrown ball comes down (d) a compass needle turns
  3. 3.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) an apple falls down (c) a river flows downhill (d) a magnet picks up pins
  4. 4.True or false: pressing a doorbell is a push. (a) False (b) True
  5. 5.Which of these is caused by gravity? (a) rubbing hands warms them (b) a rolling ball slows (c) a river flows downhill (d) a magnet picks up pins
  6. 6.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  7. 7.True or false: pushing a trolley is a push. (a) True (b) False
  8. 8.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) muscular force (d) gravity
  9. 9.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  10. 10.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  11. 11.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  12. 12.True or false: pushing a trolley is a pull. (a) True (b) False
  13. 13.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  14. 14.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) magnetic force (d) friction
  15. 15.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  16. 16.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  17. 17.💪 Which force is at work: rubbing hands warms them? (a) friction (b) gravity (c) muscular force (d) magnetic force
  18. 18.💪 Two children push a box to the right, one with 45 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  19. 19.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
  20. 20.True or false: pulling a cart is a push. (a) True (b) False
  21. 21.True or false: plucking a mango is a pull. (a) False (b) True
  22. 22.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  23. 23.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
  24. 24.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
  26. 26.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  27. 27.💪 Two children push a box to the right, one with 75 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  30. 30.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
  31. 31.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  32. 32.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  33. 33.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  34. 34.True or false: a tug of war is a pull. (a) False (b) True
  35. 35.Which of these is caused by gravity? (a) a compass needle turns (b) pedalling a cycle (c) brakes stop a bicycle (d) rain falls to the ground
  36. 36.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  37. 37.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  38. 38.True or false: a tug of war is a push. (a) False (b) True
  39. 39.💪 A cart is pulled to the right with 45 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  40. 40.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull

Answer key

  1. a pull
  2. a rolling ball slows
  3. a magnet picks up pins
  4. True
  5. a river flows downhill
  6. gravity
  7. True
  8. muscular force
  9. a push
  10. 5
  11. newton (N)
  12. False
  13. to the right
  14. magnetic force
  15. a pull
  16. a pull
  17. friction
  18. 75
  19. friction
  20. False
  21. True
  22. a pull
  23. gravity
  24. 80
  25. magnetic force
  26. a push
  27. 120
  28. 21
  29. a push
  30. muscular force
  31. a push
  32. 40
  33. change its colour
  34. True
  35. rain falls to the ground
  36. 220
  37. a pull
  38. False
  39. to the left
  40. a push

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