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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 493 · 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.True or false: pushing a swing is a push. (a) True (b) False
  2. 2.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  3. 3.Which of these is caused by friction? (a) a compass needle turns (b) a fridge magnet sticks (c) a rolling ball slows (d) an apple falls down
  4. 4.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  5. 5.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  6. 6.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  7. 7.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
  9. 9.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  11. 11.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  12. 12.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  13. 13.💪 A cart is pulled to the right with 90 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  14. 14.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  15. 15.True or false: a tug of war is a pull. (a) True (b) False
  16. 16.True or false: drawing up a well bucket is a pull. (a) False (b) True
  17. 17.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) friction (d) magnetic force
  18. 18.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
  19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  20. 20.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.True or false: opening a drawer is a push. (a) False (b) True
  22. 22.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) magnetic force (d) friction
  23. 23.True or false: pulling up your socks is a push. (a) True (b) False
  24. 24.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  25. 25.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  26. 26.Which of these is caused by gravity? (a) shoes grip the floor (b) rubbing hands warms them (c) a rolling ball slows (d) rain falls to the ground
  27. 27.💪 Two children push a box to the right, one with 5 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  29. 29.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  30. 30.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.Which of these is caused by gravity? (a) shoes grip the floor (b) an apple falls down (c) a compass needle turns (d) rubbing hands warms them
  32. 32.Which of these is caused by friction? (a) pedalling a cycle (b) brakes stop a bicycle (c) a river flows downhill (d) a thrown ball comes down
  33. 33.Which of these is caused by gravity? (a) rubbing hands warms them (b) brakes stop a bicycle (c) a thrown ball comes down (d) pedalling a cycle
  34. 34.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) gravity (d) muscular force
  35. 35.True or false: pushing a trolley is a pull. (a) False (b) True
  36. 36.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
  37. 37.True or false: plucking a mango is a pull. (a) True (b) False
  38. 38.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  39. 39.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  40. 40.True or false: kicking a football is a pull. (a) True (b) False

Answer key

  1. True
  2. a push
  3. a rolling ball slows
  4. muscular force
  5. 4
  6. 380
  7. 46
  8. change its colour
  9. 5
  10. a push
  11. a pull
  12. a pull
  13. to the left
  14. balanced
  15. True
  16. True
  17. friction
  18. newton (N)
  19. a push
  20. 140
  21. False
  22. magnetic force
  23. False
  24. a pull
  25. a push
  26. rain falls to the ground
  27. 55
  28. a pull
  29. push or a pull
  30. 37
  31. an apple falls down
  32. brakes stop a bicycle
  33. a thrown ball comes down
  34. gravity
  35. False
  36. friction
  37. True
  38. 5
  39. gravity
  40. False

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