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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 386 · 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.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  2. 2.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
  3. 3.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
  4. 4.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  5. 5.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
  6. 6.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  7. 7.Which of these is caused by muscular force? (a) a river flows downhill (b) a magnet picks up pins (c) pedalling a cycle (d) a thrown ball comes down
  8. 8.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  9. 9.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  10. 10.💪 Two children push a box to the right, one with 80 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  11. 11.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  12. 12.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) muscular force (d) magnetic force
  13. 13.Which of these is caused by friction? (a) rain falls to the ground (b) lifting a school bag (c) rubbing hands warms them (d) a fridge magnet sticks
  14. 14.True or false: pushing a trolley is a pull. (a) True (b) False
  15. 15.True or false: a tug of war is a push. (a) False (b) True
  16. 16.True or false: plucking a mango is a push. (a) False (b) True
  17. 17.True or false: drawing up a well bucket is a pull. (a) False (b) True
  18. 18.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  19. 19.True or false: a tug of war is a pull. (a) True (b) False
  20. 20.True or false: hitting a cricket ball is a pull. (a) False (b) True
  21. 21.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  22. 22.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
  23. 23.True or false: kicking a football is a push. (a) False (b) True
  24. 24.💪 A cart is pulled to the right with 55 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  25. 25.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  26. 26.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
  27. 27.💪 A cart is pulled to the right with 65 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  28. 28.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) gravity (d) muscular force
  29. 29.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  30. 30.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
  31. 31.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  33. 33.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  34. 34.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  35. 35.💪 Two children push a box to the right, one with 35 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  36. 36.True or false: plucking a mango is a pull. (a) False (b) True
  37. 37.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
  38. 38.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  39. 39.True or false: pulling up your socks is a pull. (a) False (b) True
  40. 40.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 10 N. What is the size of the net force, in newtons?

Answer key

  1. 52
  2. push or a pull
  3. newton (N)
  4. 4
  5. change its colour
  6. 10
  7. pedalling a cycle
  8. a push
  9. gravity
  10. 145
  11. a push
  12. magnetic force
  13. rubbing hands warms them
  14. False
  15. False
  16. False
  17. True
  18. 80
  19. True
  20. False
  21. a push
  22. friction
  23. True
  24. to the right
  25. to the right
  26. magnetic force
  27. to the left
  28. muscular force
  29. gravity
  30. 30
  31. 600
  32. a pull
  33. a pull
  34. a pull
  35. 130
  36. True
  37. balanced
  38. to the left
  39. True
  40. 45

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