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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 560 · 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.💪 Two children push a box to the right, one with 20 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  3. 3.True or false: pushing a swing is a pull. (a) False (b) True
  4. 4.💪 Two children push a box to the right, one with 65 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  5. 5.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  6. 6.💪 A cart is pulled to the right with 50 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  7. 7.💪 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?
  8. 8.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
  10. 10.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
  11. 11.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  12. 12.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  13. 13.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) pedalling a cycle (c) a river flows downhill (d) a thrown ball comes down
  14. 14.Which of these is caused by muscular force? (a) rain falls to the ground (b) an apple falls down (c) a magnet picks up pins (d) squeezing a lemon
  15. 15.True or false: pushing a swing is a push. (a) False (b) True
  16. 16.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  17. 17.True or false: pulling a cart is a pull. (a) False (b) True
  18. 18.Which of these is caused by magnetic force? (a) a compass needle turns (b) shoes grip the floor (c) a rolling ball slows (d) a thrown ball comes down
  19. 19.💪 Two children push a box to the right, one with 70 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  20. 20.True or false: pulling up your socks is a push. (a) False (b) True
  21. 21.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
  22. 22.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) muscular force (c) friction (d) gravity
  23. 23.True or false: drawing up a well bucket is a push. (a) True (b) False
  24. 24.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 A bag has a mass of 25 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 Two children push a box to the right, one with 5 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) magnetic force (d) muscular force
  29. 29.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
  30. 30.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  33. 33.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  34. 34.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
  36. 36.True or false: hitting a cricket ball is a pull. (a) True (b) False
  37. 37.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) muscular force (d) friction
  38. 38.True or false: pushing a trolley is a pull. (a) True (b) False
  39. 39.True or false: a tug of war is a push. (a) False (b) True
  40. 40.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. 95
  2. newton (N)
  3. False
  4. 95
  5. balanced
  6. no net force
  7. 150
  8. 4
  9. push or a pull
  10. gravity
  11. 15
  12. a pull
  13. a fridge magnet sticks
  14. squeezing a lemon
  15. True
  16. to the left
  17. True
  18. a compass needle turns
  19. 125
  20. False
  21. change its colour
  22. magnetic force
  23. False
  24. 52
  25. 26
  26. 250
  27. 30
  28. muscular force
  29. magnetic force
  30. a push
  31. a pull
  32. a push
  33. a push
  34. 90
  35. 15
  36. False
  37. friction
  38. False
  39. False
  40. 520

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