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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 172 · 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 force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) gravity (d) friction
  2. 2.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  3. 3.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
  4. 4.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
  5. 5.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  7. 7.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  8. 8.True or false: pulling up your socks is a pull. (a) True (b) False
  9. 9.True or false: plucking a mango is a pull. (a) False (b) True
  10. 10.True or false: a tug of war is a push. (a) True (b) False
  11. 11.True or false: pushing a trolley is a pull. (a) False (b) True
  12. 12.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  13. 13.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
  14. 14.Which of these is caused by friction? (a) brakes stop a bicycle (b) lifting a school bag (c) an apple falls down (d) rain falls to the ground
  15. 15.True or false: pulling a cart is a pull. (a) True (b) False
  16. 16.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  17. 17.True or false: pushing a swing is a pull. (a) False (b) True
  18. 18.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  19. 19.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  21. 21.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
  23. 23.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) gravity (d) friction
  24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  25. 25.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  27. 27.💪 A bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  28. 28.True or false: a tug of war is a pull. (a) True (b) False
  29. 29.True or false: pulling up your socks is a push. (a) True (b) False
  30. 30.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  31. 31.True or false: drawing up a well bucket is a push. (a) True (b) False
  32. 32.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  33. 33.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.Which of these is caused by muscular force? (a) a river flows downhill (b) brakes stop a bicycle (c) lifting a school bag (d) rubbing hands warms them
  35. 35.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  36. 36.Which of these is caused by gravity? (a) a thrown ball comes down (b) squeezing a lemon (c) a fridge magnet sticks (d) lifting a school bag
  37. 37.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 A cart is pulled to the right with 70 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  39. 39.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  40. 40.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull

Answer key

  1. magnetic force
  2. change its colour
  3. push or a pull
  4. gravity
  5. 50
  6. a pull
  7. a push
  8. True
  9. True
  10. False
  11. False
  12. 20
  13. newton (N)
  14. brakes stop a bicycle
  15. True
  16. a pull
  17. False
  18. a push
  19. 58
  20. 5
  21. 10
  22. friction
  23. muscular force
  24. balanced
  25. 120
  26. 25
  27. 570
  28. True
  29. False
  30. a pull
  31. False
  32. a pull
  33. 12
  34. lifting a school bag
  35. gravity
  36. a thrown ball comes down
  37. 100
  38. to the left
  39. a push
  40. a push

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