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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 376 · 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: opening a drawer is a push. (a) False (b) True
  2. 2.💪 Two children push a box to the right, one with 75 N and the other with 100 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 40 N. What is the net (total) force on the box, in newtons?
  4. 4.💪 Two children push a box to the right, one with 20 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  5. 5.Which of these is caused by friction? (a) a fridge magnet sticks (b) a river flows downhill (c) lifting a school bag (d) a rolling ball slows
  6. 6.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  7. 7.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) gravity (d) muscular force
  8. 8.True or false: drawing up a well bucket is a pull. (a) False (b) True
  9. 9.True or false: drawing up a well bucket is a push. (a) True (b) False
  10. 10.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  11. 11.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
  12. 12.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  13. 13.Which of these is caused by gravity? (a) rubbing hands warms them (b) a thrown ball comes down (c) squeezing a lemon (d) lifting a school bag
  14. 14.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  15. 15.💪 A cart is pulled to the right with 40 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  16. 16.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  17. 17.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  18. 18.True or false: pulling a cart is a push. (a) False (b) True
  19. 19.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
  20. 20.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.True or false: pressing a doorbell is a pull. (a) False (b) True
  23. 23.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  24. 24.True or false: plucking a mango is a pull. (a) True (b) False
  25. 25.💪 Two children push a box to the right, one with 90 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) friction (d) magnetic force
  27. 27.💪 Two children push a box to the right, one with 60 N and the other with 100 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  29. 29.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  30. 30.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  31. 31.True or false: kicking a football is a push. (a) True (b) False
  32. 32.Which of these is caused by muscular force? (a) a river flows downhill (b) lifting a school bag (c) rain falls to the ground (d) brakes stop a bicycle
  33. 33.True or false: hitting a cricket ball is a pull. (a) False (b) True
  34. 34.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  35. 35.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
  36. 36.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  37. 37.💪 A cart is pulled to the right with 95 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  38. 38.💪 Two children push a box to the right, one with 60 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  39. 39.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 N. What is the size of the net force, in newtons?

Answer key

  1. False
  2. 175
  3. 110
  4. 85
  5. a rolling ball slows
  6. gravity
  7. gravity
  8. True
  9. False
  10. a push
  11. push or a pull
  12. a pull
  13. a thrown ball comes down
  14. 170
  15. to the left
  16. a push
  17. 5
  18. False
  19. magnetic force
  20. 190
  21. 40
  22. False
  23. change its colour
  24. True
  25. 170
  26. friction
  27. 160
  28. a pull
  29. a pull
  30. gravity
  31. True
  32. lifting a school bag
  33. False
  34. no net force
  35. friction
  36. a push
  37. to the right
  38. 90
  39. 210
  40. 20

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