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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 813 · 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.💪 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?
  2. 2.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  3. 3.Which of these is caused by friction? (a) a rolling ball slows (b) a compass needle turns (c) an apple falls down (d) rain falls to the ground
  4. 4.True or false: drawing up a well bucket is a push. (a) True (b) False
  5. 5.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  6. 6.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
  7. 7.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  8. 8.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) an apple falls down (d) brakes stop a bicycle
  9. 9.💪 Is plucking a mango 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.Which of these is caused by gravity? (a) shoes grip the floor (b) a compass needle turns (c) rubbing hands warms them (d) an apple falls down
  12. 12.True or false: pulling a cart is a pull. (a) False (b) True
  13. 13.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  14. 14.True or false: pushing a trolley is a pull. (a) True (b) False
  15. 15.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  17. 17.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  18. 18.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) squeezing a lemon (c) shoes grip the floor (d) an apple falls down
  19. 19.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) magnetic force (d) muscular force
  20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  21. 21.True or false: a tug of war is a pull. (a) False (b) True
  22. 22.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) squeezing a lemon (c) an apple falls down (d) brakes stop a bicycle
  23. 23.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
  24. 24.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  25. 25.💪 A cart is pulled to the right with 20 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  26. 26.💪 Which force is at work: lifting a school bag? (a) muscular force (b) friction (c) gravity (d) magnetic force
  27. 27.Which of these is caused by magnetic force? (a) an apple falls down (b) lifting a school bag (c) a compass needle turns (d) rain falls to the ground
  28. 28.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  29. 29.True or false: opening a drawer is a pull. (a) False (b) True
  30. 30.💪 Two children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
  32. 32.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  33. 33.True or false: pushing a swing is a pull. (a) True (b) False
  34. 34.True or false: closing a drawer is a push. (a) False (b) True
  35. 35.True or false: pulling up your socks is a push. (a) False (b) True
  36. 36.💪 A cart is pulled to the right with 85 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  37. 37.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  38. 38.True or false: kicking a football is a pull. (a) True (b) False
  39. 39.True or false: a tug of war is a push. (a) False (b) True
  40. 40.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction

Answer key

  1. 5
  2. a push
  3. a rolling ball slows
  4. False
  5. 5
  6. newton (N)
  7. a push
  8. brakes stop a bicycle
  9. a pull
  10. a pull
  11. an apple falls down
  12. True
  13. a push
  14. False
  15. 53
  16. a pull
  17. to the left
  18. squeezing a lemon
  19. gravity
  20. balanced
  21. True
  22. a magnet picks up pins
  23. push or a pull
  24. to the right
  25. no net force
  26. muscular force
  27. a compass needle turns
  28. a push
  29. True
  30. 105
  31. gravity
  32. 5
  33. False
  34. True
  35. False
  36. to the left
  37. 10
  38. False
  39. False
  40. magnetic force

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