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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 404 · 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 can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
  2. 2.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
  3. 3.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.True or false: pushing a swing is a pull. (a) False (b) True
  5. 5.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  6. 6.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  7. 7.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
  8. 8.💪 A cart is pulled to the right with 30 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  9. 9.Which of these is caused by gravity? (a) pedalling a cycle (b) a thrown ball comes down (c) rubbing hands warms them (d) brakes stop a bicycle
  10. 10.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  11. 11.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 Two children push a box to the right, one with 45 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  13. 13.True or false: closing a drawer is a pull. (a) False (b) True
  14. 14.💪 A cart is pulled to the right with 95 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  15. 15.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
  16. 16.💪 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?
  17. 17.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  18. 18.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
  20. 20.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
  22. 22.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  23. 23.True or false: pressing a doorbell is a push. (a) False (b) True
  24. 24.💪 Two children push a box to the right, one with 55 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  26. 26.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  27. 27.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.Which of these is caused by magnetic force? (a) an apple falls down (b) a river flows downhill (c) a rolling ball slows (d) a fridge magnet sticks
  29. 29.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  30. 30.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  31. 31.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.True or false: pulling a cart is a push. (a) False (b) True
  33. 33.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 Two children push a box to the right, one with 70 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  36. 36.💪 Which force is at work: an apple falls down? (a) gravity (b) magnetic force (c) muscular force (d) friction
  37. 37.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) muscular force (d) gravity
  38. 38.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
  39. 39.💪 Two children push a box to the right, one with 60 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  40. 40.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 20 N. What is the size of the net force, in newtons?

Answer key

  1. change its colour
  2. newton (N)
  3. 55
  4. False
  5. a push
  6. 45
  7. magnetic force
  8. to the left
  9. a thrown ball comes down
  10. gravity
  11. 240
  12. 50
  13. False
  14. to the right
  15. push or a pull
  16. 10
  17. to the right
  18. 33
  19. balanced
  20. gravity
  21. False
  22. a pull
  23. True
  24. 115
  25. 60
  26. a pull
  27. 39
  28. a fridge magnet sticks
  29. a push
  30. 25
  31. 480
  32. False
  33. 31
  34. 85
  35. 12
  36. gravity
  37. magnetic force
  38. muscular force
  39. 130
  40. 35

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