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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 549 · 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 of these is caused by muscular force? (a) a compass needle turns (b) rain falls to the ground (c) a rolling ball slows (d) pedalling a cycle
  2. 2.True or false: drawing up a well bucket is a pull. (a) True (b) False
  3. 3.Which of these is caused by friction? (a) a compass needle turns (b) rubbing hands warms them (c) a fridge magnet sticks (d) squeezing a lemon
  4. 4.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  5. 5.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  6. 6.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  7. 7.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.True or false: kicking a football is a push. (a) False (b) True
  9. 9.Which of these is caused by magnetic force? (a) a compass needle turns (b) a river flows downhill (c) brakes stop a bicycle (d) an apple falls down
  10. 10.💪 Which force is at work: rain falls to the ground? (a) gravity (b) muscular force (c) friction (d) magnetic force
  11. 11.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  12. 12.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  13. 13.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  14. 14.💪 A cart is pulled to the right with 45 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  15. 15.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  16. 16.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) muscular force (d) friction
  18. 18.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  19. 19.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
  21. 21.True or false: drawing up a well bucket is a push. (a) False (b) True
  22. 22.💪 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?
  23. 23.True or false: pushing a swing is a pull. (a) True (b) False
  24. 24.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  25. 25.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  26. 26.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  27. 27.True or false: closing a drawer is a pull. (a) True (b) False
  28. 28.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  30. 30.True or false: a tug of war is a push. (a) False (b) True
  31. 31.💪 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?
  32. 32.💪 Two children push a box to the right, one with 70 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  34. 34.True or false: opening a drawer 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) to the right (b) no net force (c) to the left
  36. 36.💪 Two children push a box to the right, one with 30 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  37. 37.True or false: opening a drawer is a pull. (a) True (b) False
  38. 38.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
  39. 39.Which of these is caused by muscular force? (a) a thrown ball comes down (b) lifting a school bag (c) shoes grip the floor (d) a magnet picks up pins
  40. 40.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound

Answer key

  1. pedalling a cycle
  2. True
  3. rubbing hands warms them
  4. newton (N)
  5. magnetic force
  6. a pull
  7. 40
  8. True
  9. a compass needle turns
  10. gravity
  11. to the left
  12. a pull
  13. a pull
  14. to the left
  15. balanced
  16. 13
  17. friction
  18. 70
  19. 52
  20. friction
  21. False
  22. 25
  23. False
  24. 35
  25. gravity
  26. to the right
  27. False
  28. 600
  29. a pull
  30. False
  31. 65
  32. 150
  33. a push
  34. False
  35. to the left
  36. 65
  37. True
  38. change its colour
  39. lifting a school bag
  40. push or a pull

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