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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 279 · 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 magnetic force? (a) rain falls to the ground (b) a rolling ball slows (c) a magnet picks up pins (d) a thrown ball comes down
  2. 2.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  3. 3.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  5. 5.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
  6. 6.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) friction (d) magnetic force
  7. 7.True or false: pushing a trolley is a push. (a) True (b) False
  8. 8.💪 Two children push a box to the right, one with 55 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  10. 10.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
  11. 11.True or false: closing a drawer is a pull. (a) True (b) False
  12. 12.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) gravity (d) muscular force
  13. 13.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  14. 14.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  15. 15.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
  16. 16.True or false: kicking a football is a push. (a) False (b) True
  17. 17.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  18. 18.True or false: pushing a swing is a pull. (a) True (b) False
  19. 19.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) friction (d) wind
  20. 20.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
  21. 21.💪 A cart is pulled to the right with 60 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  22. 22.Which of these is caused by gravity? (a) a compass needle turns (b) an apple falls down (c) a magnet picks up pins (d) squeezing a lemon
  23. 23.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  24. 24.True or false: pushing a swing is a push. (a) True (b) False
  25. 25.True or false: hitting a cricket ball is a push. (a) True (b) False
  26. 26.💪 A cart is pulled to the right with 60 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  27. 27.True or false: pulling up your socks is a pull. (a) True (b) False
  28. 28.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  29. 29.True or false: opening a drawer is a pull. (a) False (b) True
  30. 30.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  31. 31.Which of these is caused by muscular force? (a) a thrown ball comes down (b) rubbing hands warms them (c) lifting a school bag (d) rain falls to the ground
  32. 32.💪 Two children push a box to the right, one with 80 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  33. 33.True or false: plucking a mango is a push. (a) True (b) False
  34. 34.True or false: pressing a doorbell is a push. (a) True (b) False
  35. 35.True or false: opening a drawer is a push. (a) True (b) False
  36. 36.💪 A force is a … (a) push or a pull (b) type of sound (c) unit of time (d) kind of colour
  37. 37.💪 A cart is pulled to the right with 70 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  38. 38.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  39. 39.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) muscular force (d) friction
  40. 40.💪 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) no net force (b) to the left (c) to the right

Answer key

  1. a magnet picks up pins
  2. a push
  3. 47
  4. a push
  5. change its colour
  6. friction
  7. True
  8. 100
  9. to the right
  10. newton (N)
  11. False
  12. friction
  13. a pull
  14. 85
  15. squeezing a lemon
  16. True
  17. to the right
  18. False
  19. gravity
  20. magnetic force
  21. to the left
  22. an apple falls down
  23. 5
  24. True
  25. True
  26. to the left
  27. True
  28. friction
  29. True
  30. 50
  31. lifting a school bag
  32. 170
  33. False
  34. True
  35. False
  36. push or a pull
  37. to the left
  38. 16
  39. magnetic force
  40. to the right

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