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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 795 · 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 of these is caused by magnetic force? (a) pedalling a cycle (b) a rolling ball slows (c) a fridge magnet sticks (d) rubbing hands warms them
  2. 2.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) gravity (d) magnetic force
  3. 3.True or false: closing a drawer is a push. (a) True (b) False
  4. 4.Which of these is caused by gravity? (a) a compass needle turns (b) a thrown ball comes down (c) shoes grip the floor (d) rubbing hands warms them
  5. 5.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
  6. 6.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) gravity (d) magnetic force
  7. 7.Which of these is caused by friction? (a) an apple falls down (b) a rolling ball slows (c) a river flows downhill (d) a thrown ball comes down
  8. 8.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  9. 9.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  12. 12.True or false: hitting a cricket ball is a pull. (a) True (b) False
  13. 13.💪 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) to the left (c) no net force
  14. 14.💪 A cart is pulled to the right with 65 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  15. 15.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  16. 16.💪 A cart is pulled to the right with 30 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
  17. 17.💪 Two children push a box to the right, one with 5 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  19. 19.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  20. 20.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  22. 22.True or false: opening a drawer is a push. (a) True (b) False
  23. 23.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  24. 24.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A cart is pulled to the right with 60 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  26. 26.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  27. 27.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) start it moving (d) change its colour
  28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
  29. 29.True or false: pulling a cart is a push. (a) True (b) False
  30. 30.True or false: pushing a trolley is a push. (a) True (b) False
  31. 31.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) friction (d) muscular force
  32. 32.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  33. 33.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  34. 34.True or false: pulling up your socks is a push. (a) True (b) False
  35. 35.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) magnetic force (d) gravity
  36. 36.💪 Two children push a box to the right, one with 85 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.Which of these is caused by gravity? (a) brakes stop a bicycle (b) lifting a school bag (c) rain falls to the ground (d) shoes grip the floor
  39. 39.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. a fridge magnet sticks
  2. gravity
  3. True
  4. a thrown ball comes down
  5. magnetic force
  6. friction
  7. a rolling ball slows
  8. 450
  9. 380
  10. 39
  11. a pull
  12. False
  13. to the left
  14. to the right
  15. gravity
  16. to the right
  17. 35
  18. a push
  19. a push
  20. 11
  21. a pull
  22. False
  23. a push
  24. 33
  25. to the right
  26. 25
  27. change its colour
  28. balanced
  29. False
  30. True
  31. gravity
  32. 60
  33. to the right
  34. False
  35. muscular force
  36. 105
  37. 60
  38. rain falls to the ground
  39. 360
  40. 58

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