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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 375 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
  2. 2.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  3. 3.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a fridge magnet sticks (c) a rolling ball slows (d) lifting a school bag
  4. 4.Which of these is caused by friction? (a) a magnet picks up pins (b) a river flows downhill (c) a thrown ball comes down (d) brakes stop a bicycle
  5. 5.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) friction (d) gravity
  6. 6.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  7. 7.True or false: pushing a trolley is a push. (a) True (b) False
  8. 8.💪 Two children push a box to the right, one with 30 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
  10. 10.True or false: hitting a cricket ball is a push. (a) False (b) True
  11. 11.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) magnetic force (d) friction
  12. 12.💪 A cart is pulled to the right with 85 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
  13. 13.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  14. 14.💪 Two children push a box to the right, one with 65 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  15. 15.Which of these is caused by magnetic force? (a) shoes grip the floor (b) rain falls to the ground (c) lifting a school bag (d) a magnet picks up pins
  16. 16.Which of these is caused by gravity? (a) an apple falls down (b) shoes grip the floor (c) a compass needle turns (d) pedalling a cycle
  17. 17.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  18. 18.True or false: opening a drawer is a pull. (a) True (b) False
  19. 19.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  20. 20.True or false: plucking a mango is a push. (a) True (b) False
  21. 21.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  22. 22.True or false: pulling a cart is a pull. (a) False (b) True
  23. 23.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  24. 24.True or false: drawing up a well bucket is a pull. (a) False (b) True
  25. 25.True or false: a tug of war is a push. (a) True (b) False
  26. 26.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  27. 27.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  28. 28.True or false: a tug of war is a pull. (a) False (b) True
  29. 29.💪 Is opening a drawer 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) muscular force (d) friction
  31. 31.💪 Two children push a box to the right, one with 15 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  33. 33.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
  34. 34.💪 Two children push a box to the right, one with 25 N and the other with 40 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  36. 36.True or false: pulling a cart is a push. (a) True (b) False
  37. 37.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 Two children push a box to the right, one with 35 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  39. 39.True or false: opening a drawer is a push. (a) False (b) True
  40. 40.Which of these is caused by muscular force? (a) pedalling a cycle (b) brakes stop a bicycle (c) shoes grip the floor (d) a fridge magnet sticks

Answer key

  1. balanced
  2. a push
  3. a fridge magnet sticks
  4. brakes stop a bicycle
  5. gravity
  6. a push
  7. True
  8. 130
  9. gravity
  10. True
  11. gravity
  12. to the right
  13. a pull
  14. 155
  15. a magnet picks up pins
  16. an apple falls down
  17. a pull
  18. True
  19. a pull
  20. False
  21. 50
  22. True
  23. friction
  24. True
  25. False
  26. a push
  27. muscular force
  28. True
  29. a pull
  30. muscular force
  31. 80
  32. a push
  33. change its colour
  34. 65
  35. 5
  36. False
  37. 28
  38. 80
  39. False
  40. pedalling a cycle

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