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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 254 · 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.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  2. 2.Which of these is caused by friction? (a) a compass needle turns (b) brakes stop a bicycle (c) lifting a school bag (d) a fridge magnet sticks
  3. 3.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
  4. 4.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  5. 5.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
  6. 6.Which of these is caused by friction? (a) squeezing a lemon (b) an apple falls down (c) a rolling ball slows (d) a magnet picks up pins
  7. 7.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) friction (d) gravity
  8. 8.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  9. 9.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  10. 10.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  11. 11.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
  12. 12.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  13. 13.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  14. 14.True or false: kicking a football is a push. (a) True (b) False
  15. 15.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  16. 16.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  17. 17.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.True or false: pushing a trolley is a pull. (a) False (b) True
  19. 19.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  20. 20.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
  21. 21.True or false: pulling a cart is a pull. (a) True (b) False
  22. 22.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  23. 23.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  24. 24.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  25. 25.True or false: closing a drawer is a pull. (a) True (b) False
  26. 26.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
  28. 28.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
  29. 29.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  30. 30.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  31. 31.💪 Two children push a box to the right, one with 40 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  32. 32.Which of these is caused by gravity? (a) brakes stop a bicycle (b) squeezing a lemon (c) a thrown ball comes down (d) pedalling a cycle
  33. 33.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
  34. 34.True or false: pulling up your socks is a push. (a) True (b) False
  35. 35.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) friction (d) magnetic force
  37. 37.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
  38. 38.True or false: opening a drawer is a pull. (a) True (b) False
  39. 39.Which of these is caused by gravity? (a) lifting a school bag (b) a rolling ball slows (c) an apple falls down (d) pedalling a cycle
  40. 40.💪 A cart is pulled to the right with 25 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force

Answer key

  1. a push
  2. brakes stop a bicycle
  3. newton (N)
  4. push or a pull
  5. balanced
  6. a rolling ball slows
  7. muscular force
  8. a pull
  9. 75
  10. 15
  11. 25
  12. a push
  13. a pull
  14. True
  15. a push
  16. muscular force
  17. 51
  18. False
  19. 400
  20. friction
  21. True
  22. a pull
  23. a push
  24. 30
  25. False
  26. 210
  27. gravity
  28. change its colour
  29. a pull
  30. a pull
  31. 85
  32. a thrown ball comes down
  33. muscular force
  34. False
  35. 150
  36. magnetic force
  37. gravity
  38. True
  39. an apple falls down
  40. to the left

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