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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 79 · 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.💪 Two children push a box to the right, one with 100 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 Two children push a box to the right, one with 35 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  3. 3.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) shoes grip the floor (c) a rolling ball slows (d) lifting a school bag
  4. 4.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) friction (d) magnetism
  5. 5.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
  6. 6.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
  7. 7.True or false: closing a drawer is a pull. (a) True (b) False
  8. 8.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  9. 9.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
  10. 10.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.Which of these is caused by muscular force? (a) pedalling a cycle (b) a fridge magnet sticks (c) a compass needle turns (d) a river flows downhill
  12. 12.True or false: plucking a mango is a pull. (a) False (b) True
  13. 13.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) shoes grip the floor (d) lifting a school bag
  14. 14.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
  15. 15.True or false: hitting a cricket ball is a push. (a) True (b) False
  16. 16.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
  17. 17.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) gravity (c) magnetic force (d) friction
  18. 18.True or false: pushing a swing is a push. (a) False (b) True
  19. 19.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  20. 20.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  21. 21.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
  22. 22.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  23. 23.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  24. 24.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  25. 25.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  26. 26.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
  27. 27.💪 Two children push a box to the right, one with 40 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  28. 28.Which of these is caused by friction? (a) pedalling a cycle (b) squeezing a lemon (c) a rolling ball slows (d) an apple falls down
  29. 29.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 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) no net force (c) to the right
  31. 31.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  32. 32.True or false: hitting a cricket ball is a pull. (a) True (b) False
  33. 33.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) magnetic force (d) gravity
  34. 34.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  35. 35.💪 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) to the right (b) to the left (c) no net force
  36. 36.💪 A cart is pulled to the right with 55 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  37. 37.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) muscular force (d) gravity
  38. 38.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  39. 39.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.True or false: drawing up a well bucket is a pull. (a) True (b) False

Answer key

  1. 110
  2. 130
  3. a magnet picks up pins
  4. gravity
  5. change its colour
  6. muscular force
  7. False
  8. balanced
  9. friction
  10. 5
  11. pedalling a cycle
  12. True
  13. an apple falls down
  14. friction
  15. True
  16. 20
  17. magnetic force
  18. True
  19. 10
  20. 45
  21. magnetic force
  22. push or a pull
  23. a push
  24. a pull
  25. a push
  26. friction
  27. 110
  28. a rolling ball slows
  29. 80
  30. to the left
  31. a push
  32. False
  33. gravity
  34. 50
  35. to the left
  36. to the left
  37. gravity
  38. to the right
  39. 16
  40. True

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