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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 114 · 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 muscular force? (a) an apple falls down (b) rain falls to the ground (c) squeezing a lemon (d) a river flows downhill
  2. 2.💪 Two children push a box to the right, one with 95 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 Two children push a box to the right, one with 70 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
  5. 5.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Two children push a box to the right, one with 65 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  7. 7.True or false: opening a drawer is a push. (a) True (b) False
  8. 8.Which of these is caused by gravity? (a) a river flows downhill (b) shoes grip the floor (c) a rolling ball slows (d) pedalling a cycle
  9. 9.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  10. 10.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  11. 11.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  12. 12.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.Which of these is caused by friction? (a) squeezing a lemon (b) a thrown ball comes down (c) a fridge magnet sticks (d) shoes grip the floor
  14. 14.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) muscular force (d) gravity
  15. 15.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a magnet picks up pins (c) pedalling a cycle (d) an apple falls down
  16. 16.💪 Which force is at work: shoes grip the floor? (a) gravity (b) magnetic force (c) friction (d) muscular force
  17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  18. 18.True or false: hitting a cricket ball is a push. (a) True (b) False
  19. 19.💪 A cart is pulled to the right with 45 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  20. 20.Which of these is caused by friction? (a) lifting a school bag (b) rain falls to the ground (c) a rolling ball slows (d) squeezing a lemon
  21. 21.💪 A force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
  22. 22.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 Two children push a box to the right, one with 15 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  26. 26.True or false: closing a drawer is a pull. (a) False (b) True
  27. 27.💪 Two children push a box to the right, one with 65 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.True or false: pulling up your socks is a pull. (a) True (b) False
  30. 30.💪 Two children push a box to the right, one with 15 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  31. 31.True or false: drawing up a well bucket is a push. (a) False (b) True
  32. 32.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  34. 34.💪 A cart is pulled to the right with 85 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
  35. 35.True or false: drawing up a well bucket is a pull. (a) True (b) False
  36. 36.True or false: pushing a swing is a push. (a) True (b) False
  37. 37.True or false: pulling a cart is a push. (a) True (b) False
  38. 38.Which of these is caused by gravity? (a) rain falls to the ground (b) a rolling ball slows (c) pedalling a cycle (d) brakes stop a bicycle
  39. 39.True or false: plucking a mango is a push. (a) True (b) False
  40. 40.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a compass needle turns (c) squeezing a lemon (d) lifting a school bag

Answer key

  1. squeezing a lemon
  2. 115
  3. 80
  4. newton (N)
  5. 130
  6. 140
  7. False
  8. a river flows downhill
  9. a push
  10. a pull
  11. a pull
  12. 330
  13. shoes grip the floor
  14. gravity
  15. a magnet picks up pins
  16. friction
  17. a push
  18. True
  19. to the left
  20. a rolling ball slows
  21. push or a pull
  22. 28
  23. 25
  24. 45
  25. a pull
  26. False
  27. 120
  28. 540
  29. True
  30. 75
  31. False
  32. 17
  33. gravity
  34. to the right
  35. True
  36. True
  37. False
  38. rain falls to the ground
  39. False
  40. a compass needle turns

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