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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 511 · 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.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  2. 2.💪 A cart is pulled to the right with 45 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  3. 3.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  4. 4.Which of these is caused by friction? (a) pedalling a cycle (b) a magnet picks up pins (c) a thrown ball comes down (d) brakes stop a bicycle
  5. 5.Which of these is caused by magnetic force? (a) pedalling a cycle (b) rain falls to the ground (c) a magnet picks up pins (d) rubbing hands warms them
  6. 6.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
  7. 7.True or false: pushing a trolley is a push. (a) True (b) False
  8. 8.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
  9. 9.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) shoes grip the floor (d) brakes stop a bicycle
  10. 10.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
  11. 11.Which of these is caused by gravity? (a) a thrown ball comes down (b) squeezing a lemon (c) shoes grip the floor (d) rubbing hands warms them
  12. 12.💪 Two children push a box to the right, one with 100 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  14. 14.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
  15. 15.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
  16. 16.True or false: pulling up your socks is a pull. (a) False (b) True
  17. 17.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  20. 20.💪 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?
  21. 21.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
  22. 22.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) gravity (d) friction
  25. 25.💪 Two children push a box to the right, one with 20 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  26. 26.True or false: pressing a doorbell is a push. (a) False (b) True
  27. 27.True or false: pushing a swing is a push. (a) True (b) False
  28. 28.💪 A cart is pulled to the right with 80 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  29. 29.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity
  30. 30.True or false: opening a drawer is a push. (a) False (b) True
  31. 31.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.Which of these is caused by gravity? (a) shoes grip the floor (b) rain falls to the ground (c) a fridge magnet sticks (d) a magnet picks up pins
  33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  34. 34.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  35. 35.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
  36. 36.True or false: hitting a cricket ball is a pull. (a) True (b) False
  37. 37.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a river flows downhill (c) brakes stop a bicycle (d) squeezing a lemon
  38. 38.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
  39. 39.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  40. 40.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction

Answer key

  1. a push
  2. to the left
  3. a pull
  4. brakes stop a bicycle
  5. a magnet picks up pins
  6. friction
  7. True
  8. push or a pull
  9. a river flows downhill
  10. friction
  11. a thrown ball comes down
  12. 195
  13. change its colour
  14. gravity
  15. friction
  16. True
  17. 450
  18. a pull
  19. a push
  20. 85
  21. gravity
  22. 220
  23. 57
  24. magnetic force
  25. 50
  26. True
  27. True
  28. no net force
  29. magnetic force
  30. False
  31. 540
  32. rain falls to the ground
  33. a pull
  34. a pull
  35. muscular force
  36. False
  37. squeezing a lemon
  38. balanced
  39. 35
  40. magnetic force

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