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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 197 · 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 hitting a cricket ball a push or a pull? (a) a pull (b) a push
  2. 2.Which of these is caused by muscular force? (a) shoes grip the floor (b) squeezing a lemon (c) rain falls to the ground (d) a compass needle turns
  3. 3.💪 Two children push a box to the right, one with 90 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  5. 5.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) rubbing hands warms them (c) an apple falls down (d) brakes stop a bicycle
  6. 6.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.True or false: hitting a cricket ball is a pull. (a) False (b) True
  9. 9.💪 Two children push a box to the right, one with 35 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 thrown ball comes down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  11. 11.Which of these is caused by muscular force? (a) a thrown ball comes down (b) rubbing hands warms them (c) rain falls to the ground (d) lifting a school bag
  12. 12.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) friction (d) gravity
  13. 13.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a compass needle turns (c) squeezing a lemon (d) a river flows downhill
  14. 14.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  15. 15.True or false: pushing a trolley is a push. (a) True (b) False
  16. 16.True or false: a tug of war is a push. (a) False (b) True
  17. 17.💪 A cart is pulled to the right with 95 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  18. 18.True or false: kicking a football is a pull. (a) False (b) True
  19. 19.💪 Two children push a box to the right, one with 75 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
  21. 21.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Two children push a box to the right, one with 95 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  23. 23.Which of these is caused by friction? (a) a river flows downhill (b) a thrown ball comes down (c) a compass needle turns (d) a rolling ball slows
  24. 24.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  25. 25.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
  26. 26.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  27. 27.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  28. 28.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  29. 29.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
  31. 31.Which of these is caused by magnetic force? (a) shoes grip the floor (b) an apple falls down (c) a fridge magnet sticks (d) squeezing a lemon
  32. 32.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
  33. 33.Which of these is caused by muscular force? (a) a compass needle turns (b) rubbing hands warms them (c) pedalling a cycle (d) shoes grip the floor
  34. 34.True or false: pulling up your socks is a push. (a) False (b) True
  35. 35.💪 A cart is pulled to the right with 40 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
  36. 36.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  37. 37.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  39. 39.💪 Two children push a box to the right, one with 10 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  40. 40.True or false: pushing a swing is a pull. (a) True (b) False

Answer key

  1. a push
  2. squeezing a lemon
  3. 115
  4. 70
  5. a magnet picks up pins
  6. 13
  7. 20
  8. False
  9. 105
  10. gravity
  11. lifting a school bag
  12. friction
  13. a river flows downhill
  14. 30
  15. True
  16. False
  17. to the left
  18. False
  19. 160
  20. balanced
  21. 47
  22. 170
  23. a rolling ball slows
  24. 65
  25. newton (N)
  26. a pull
  27. push or a pull
  28. a pull
  29. 51
  30. change its colour
  31. a fridge magnet sticks
  32. 45
  33. pedalling a cycle
  34. False
  35. to the left
  36. 55
  37. to the right
  38. a push
  39. 20
  40. False

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