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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 895 · 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: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
  2. 2.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  3. 3.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  4. 4.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.Which of these is caused by magnetic force? (a) an apple falls down (b) pedalling a cycle (c) shoes grip the floor (d) a fridge magnet sticks
  6. 6.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
  7. 7.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  8. 8.True or false: closing a drawer is a pull. (a) True (b) False
  9. 9.💪 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) no net force (c) to the right
  10. 10.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
  11. 11.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) gravity (d) friction
  12. 12.True or false: pushing a swing is a pull. (a) True (b) False
  13. 13.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  14. 14.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  15. 15.Which of these is caused by muscular force? (a) a thrown ball comes down (b) an apple falls down (c) a river flows downhill (d) squeezing a lemon
  16. 16.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  17. 17.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  18. 18.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  19. 19.True or false: drawing up a well bucket is a push. (a) True (b) False
  20. 20.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) magnetic force (d) muscular force
  21. 21.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) magnetic force (d) muscular force
  22. 22.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  24. 24.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  25. 25.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  26. 26.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) magnetic force (d) muscular force
  27. 27.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  28. 28.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a rolling ball slows (c) a thrown ball comes down (d) squeezing a lemon
  29. 29.💪 Two children push a box to the right, one with 90 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.Which of these is caused by gravity? (a) a rolling ball slows (b) squeezing a lemon (c) brakes stop a bicycle (d) an apple falls down
  34. 34.💪 Two children push a box to the right, one with 95 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  35. 35.True or false: pushing a trolley is a push. (a) True (b) False
  36. 36.💪 Two children push a box to the right, one with 45 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 Two children push a box to the right, one with 95 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) start it moving (d) stop it moving
  39. 39.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  40. 40.Which of these is caused by friction? (a) a fridge magnet sticks (b) an apple falls down (c) shoes grip the floor (d) a river flows downhill

Answer key

  1. muscular force
  2. 50
  3. 20
  4. 11
  5. a fridge magnet sticks
  6. push or a pull
  7. a pull
  8. False
  9. to the right
  10. gravity
  11. magnetic force
  12. False
  13. a pull
  14. a pull
  15. squeezing a lemon
  16. a push
  17. a pull
  18. 50
  19. False
  20. friction
  21. friction
  22. 15
  23. a push
  24. a push
  25. newton (N)
  26. gravity
  27. 45
  28. a thrown ball comes down
  29. 185
  30. 53
  31. 4
  32. 10
  33. an apple falls down
  34. 110
  35. True
  36. 145
  37. 115
  38. change its colour
  39. to the right
  40. shoes grip the floor

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