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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 836 · 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 gravity? (a) pedalling a cycle (b) a rolling ball slows (c) an apple falls down (d) lifting a school bag
  3. 3.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) friction (d) gravity
  4. 4.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  5. 5.💪 A cart is pulled to the right with 95 N and to the left with 100 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  6. 6.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  7. 7.Which of these is caused by muscular force? (a) lifting a school bag (b) a river flows downhill (c) an apple falls down (d) brakes stop a bicycle
  8. 8.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) muscular force (d) magnetic force
  9. 9.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its colour (d) change its shape
  10. 10.True or false: closing a drawer is a push. (a) False (b) True
  11. 11.True or false: plucking a mango is a pull. (a) True (b) False
  12. 12.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  14. 14.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  15. 15.True or false: opening a drawer is a push. (a) False (b) True
  16. 16.💪 Two children push a box to the right, one with 10 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  17. 17.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.True or false: pressing a doorbell is a pull. (a) True (b) False
  19. 19.Which of these is caused by friction? (a) lifting a school bag (b) a fridge magnet sticks (c) a rolling ball slows (d) a river flows downhill
  20. 20.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  21. 21.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  22. 22.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  23. 23.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  24. 24.💪 A cart is pulled to the right with 100 N and to the left with 110 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  25. 25.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  26. 26.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  27. 27.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
  28. 28.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  29. 29.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.True or false: a tug of war is a push. (a) False (b) True
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.True or false: pressing a doorbell is a push. (a) True (b) False
  33. 33.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) gravity (d) magnetic force
  34. 34.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  35. 35.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.True or false: pushing a swing is a pull. (a) True (b) False
  37. 37.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  38. 38.True or false: pushing a trolley is a push. (a) True (b) False
  39. 39.Which of these is caused by friction? (a) rubbing hands warms them (b) a magnet picks up pins (c) a fridge magnet sticks (d) a compass needle turns
  40. 40.True or false: pulling up your socks is a pull. (a) False (b) True

Answer key

  1. a push
  2. an apple falls down
  3. gravity
  4. a push
  5. to the left
  6. a push
  7. lifting a school bag
  8. magnetic force
  9. change its colour
  10. True
  11. True
  12. 26
  13. to the right
  14. 15
  15. False
  16. 90
  17. 220
  18. False
  19. a rolling ball slows
  20. 10
  21. newton (N)
  22. a pull
  23. a push
  24. to the left
  25. a pull
  26. balanced
  27. gravity
  28. 25
  29. 20
  30. False
  31. a pull
  32. True
  33. magnetic force
  34. a push
  35. 520
  36. False
  37. 600
  38. True
  39. rubbing hands warms them
  40. True

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