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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 237 · 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.💪 A cart is pulled to the right with 30 N and to the left with 30 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  2. 2.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  3. 3.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  4. 4.💪 A cart is pulled to the right with 90 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  5. 5.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  6. 6.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) brakes stop a bicycle (d) lifting a school bag
  7. 7.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
  8. 8.💪 A cart is pulled to the right with 25 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  9. 9.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
  11. 11.💪 A cart is pulled to the right with 85 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  12. 12.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  13. 13.True or false: pressing a doorbell is a pull. (a) False (b) True
  14. 14.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  15. 15.Which of these is caused by gravity? (a) a rolling ball slows (b) rain falls to the ground (c) lifting a school bag (d) brakes stop a bicycle
  16. 16.True or false: pushing a swing is a push. (a) False (b) True
  17. 17.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
  18. 18.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  19. 19.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  20. 20.💪 Two children push a box to the right, one with 75 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  21. 21.💪 A cart is pulled to the right with 80 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  22. 22.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) a river flows downhill (c) rain falls to the ground (d) an apple falls down
  23. 23.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 A cart is pulled to the right with 20 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  27. 27.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) magnetic force (d) muscular force
  28. 28.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  30. 30.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  31. 31.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  32. 32.💪 A cart is pulled to the right with 25 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  33. 33.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) friction (d) magnetic force
  34. 34.💪 Two children push a box to the right, one with 90 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  35. 35.Which of these is caused by friction? (a) shoes grip the floor (b) a river flows downhill (c) pedalling a cycle (d) squeezing a lemon
  36. 36.True or false: pulling up your socks is a push. (a) True (b) False
  37. 37.💪 Two children push a box to the right, one with 95 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  39. 39.True or false: opening a drawer is a pull. (a) False (b) True
  40. 40.💪 A cart is pulled to the right with 75 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left

Answer key

  1. no net force
  2. a push
  3. 40
  4. to the left
  5. 10
  6. a river flows downhill
  7. gravity
  8. no net force
  9. a push
  10. balanced
  11. to the left
  12. a pull
  13. False
  14. to the right
  15. rain falls to the ground
  16. True
  17. 40
  18. change its colour
  19. push or a pull
  20. 100
  21. to the left
  22. a fridge magnet sticks
  23. 4
  24. 29
  25. 13
  26. to the left
  27. friction
  28. 49
  29. gravity
  30. 3
  31. a push
  32. to the left
  33. friction
  34. 175
  35. shoes grip the floor
  36. False
  37. 110
  38. muscular force
  39. True
  40. to the right

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