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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 471 · 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 of these is caused by gravity? (a) squeezing a lemon (b) a rolling ball slows (c) rain falls to the ground (d) a magnet picks up pins
  2. 2.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  3. 3.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Two children push a box to the right, one with 10 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  5. 5.True or false: pulling up your socks is a push. (a) True (b) False
  6. 6.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
  7. 7.True or false: hitting a cricket ball is a pull. (a) False (b) True
  8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  9. 9.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
  10. 10.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.True or false: drawing up a well bucket is a push. (a) False (b) True
  13. 13.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  14. 14.True or false: pushing a trolley is a pull. (a) False (b) True
  15. 15.True or false: a tug of war is a pull. (a) False (b) True
  16. 16.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
  17. 17.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  18. 18.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) pedalling a cycle (d) a fridge magnet sticks
  19. 19.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  20. 20.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  22. 22.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) rubbing hands warms them (d) pedalling a cycle
  23. 23.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  24. 24.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) magnetic force (d) friction
  25. 25.True or false: pulling up your socks is a pull. (a) True (b) False
  26. 26.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  27. 27.💪 Two children push a box to the right, one with 25 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  30. 30.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
  31. 31.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  32. 32.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  33. 33.💪 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) no net force (b) to the left (c) to the right
  34. 34.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
  35. 35.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  36. 36.True or false: closing a drawer is a pull. (a) False (b) True
  37. 37.💪 Which force is at work: shoes grip the floor? (a) gravity (b) magnetic force (c) muscular force (d) friction
  38. 38.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  39. 39.True or false: kicking a football is a pull. (a) True (b) False
  40. 40.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) muscular force (d) magnetic force

Answer key

  1. rain falls to the ground
  2. 520
  3. 11
  4. 90
  5. False
  6. newton (N)
  7. False
  8. a pull
  9. muscular force
  10. 3
  11. 600
  12. False
  13. a pull
  14. False
  15. True
  16. gravity
  17. a push
  18. pedalling a cycle
  19. a pull
  20. 36
  21. push or a pull
  22. rubbing hands warms them
  23. 80
  24. magnetic force
  25. True
  26. a push
  27. 50
  28. 210
  29. a push
  30. change its colour
  31. to the right
  32. to the left
  33. to the right
  34. 5
  35. a pull
  36. False
  37. friction
  38. 50
  39. False
  40. friction

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