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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 878 · 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 force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
  2. 2.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
  4. 4.True or false: a tug of war is a push. (a) True (b) False
  5. 5.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
  6. 6.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  7. 7.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
  8. 8.Which of these is caused by friction? (a) brakes stop a bicycle (b) a river flows downhill (c) a thrown ball comes down (d) an apple falls down
  9. 9.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by gravity? (a) shoes grip the floor (b) a magnet picks up pins (c) a thrown ball comes down (d) a compass needle turns
  12. 12.True or false: closing a drawer is a push. (a) True (b) False
  13. 13.True or false: pushing a swing is a pull. (a) True (b) False
  14. 14.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
  16. 16.True or false: plucking a mango is a pull. (a) False (b) True
  17. 17.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  18. 18.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
  19. 19.💪 Two children push a box to the right, one with 50 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  20. 20.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  22. 22.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  23. 23.True or false: pressing a doorbell is a push. (a) False (b) True
  24. 24.True or false: hitting a cricket ball is a push. (a) True (b) False
  25. 25.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
  27. 27.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  28. 28.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.True or false: pushing a trolley is a push. (a) True (b) False
  30. 30.Which of these is caused by muscular force? (a) a compass needle turns (b) rubbing hands warms them (c) lifting a school bag (d) a river flows downhill
  31. 31.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  32. 32.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  34. 34.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  35. 35.True or false: kicking a football is a push. (a) False (b) True
  36. 36.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  37. 37.True or false: pulling a cart is a pull. (a) False (b) True
  38. 38.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) friction (d) muscular force
  39. 39.True or false: pulling up your socks is a push. (a) False (b) True
  40. 40.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a magnet picks up pins (c) pedalling a cycle (d) a river flows downhill

Answer key

  1. muscular force
  2. a pull
  3. balanced
  4. False
  5. change its colour
  6. 65
  7. newton (N)
  8. brakes stop a bicycle
  9. 21
  10. 15
  11. a thrown ball comes down
  12. True
  13. False
  14. 50
  15. gravity
  16. True
  17. 20
  18. magnetic force
  19. 150
  20. 26
  21. a pull
  22. a push
  23. True
  24. True
  25. 20
  26. push or a pull
  27. a pull
  28. 140
  29. True
  30. lifting a school bag
  31. a pull
  32. 200
  33. friction
  34. a push
  35. True
  36. to the right
  37. True
  38. friction
  39. False
  40. a magnet picks up pins

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