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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 63 · 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 pulling a cart a push or a pull? (a) a pull (b) a push
  2. 2.💪 Two children push a box to the right, one with 45 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  3. 3.Which of these is caused by magnetic force? (a) shoes grip the floor (b) an apple falls down (c) pedalling a cycle (d) a fridge magnet sticks
  4. 4.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
  5. 5.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
  6. 6.True or false: hitting a cricket ball is a pull. (a) True (b) False
  7. 7.💪 A cart is pulled to the right with 80 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  8. 8.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
  9. 9.💪 Which force is at work: a magnet picks up pins? (a) friction (b) gravity (c) magnetic force (d) muscular force
  10. 10.💪 Two children push a box to the right, one with 40 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  11. 11.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  12. 12.💪 Two children push a box to the right, one with 90 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  14. 14.True or false: kicking a football is a pull. (a) True (b) False
  15. 15.💪 Two children push a box to the right, one with 30 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  16. 16.True or false: pulling a cart is a pull. (a) False (b) True
  17. 17.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  18. 18.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.Which of these is caused by friction? (a) rain falls to the ground (b) a fridge magnet sticks (c) a rolling ball slows (d) an apple falls down
  20. 20.💪 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 right (c) to the left
  21. 21.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) muscular force (d) magnetic force
  22. 22.Which of these is caused by gravity? (a) a magnet picks up pins (b) lifting a school bag (c) a river flows downhill (d) shoes grip the floor
  23. 23.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  24. 24.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
  25. 25.True or false: opening a drawer is a pull. (a) False (b) True
  26. 26.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.True or false: pulling up your socks is a push. (a) False (b) True
  29. 29.True or false: kicking a football is a push. (a) True (b) False
  30. 30.💪 Two children push a box to the right, one with 20 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: opening a drawer is a push. (a) True (b) False
  32. 32.True or false: pulling a cart is a push. (a) False (b) True
  33. 33.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  36. 36.💪 A force is a … (a) unit of time (b) type of sound (c) kind of colour (d) push or a pull
  37. 37.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  38. 38.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  39. 39.💪 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
  40. 40.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 25 N. What is the size of the net force, in newtons?

Answer key

  1. a pull
  2. 140
  3. a fridge magnet sticks
  4. change its colour
  5. gravity
  6. False
  7. to the right
  8. gravity
  9. magnetic force
  10. 120
  11. 25
  12. 95
  13. a push
  14. False
  15. 120
  16. True
  17. a push
  18. 320
  19. a rolling ball slows
  20. to the right
  21. muscular force
  22. a river flows downhill
  23. 490
  24. magnetic force
  25. True
  26. 240
  27. 25
  28. False
  29. True
  30. 50
  31. False
  32. False
  33. 35
  34. 14
  35. gravity
  36. push or a pull
  37. 15
  38. a pull
  39. to the left
  40. 65

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