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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 503 · 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 pushing a swing a push or a pull? (a) a push (b) a pull
  2. 2.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  3. 3.Which of these is caused by magnetic force? (a) pedalling a cycle (b) brakes stop a bicycle (c) squeezing a lemon (d) a compass needle turns
  4. 4.True or false: pushing a swing is a pull. (a) True (b) False
  5. 5.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  6. 6.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
  7. 7.True or false: closing a drawer is a pull. (a) False (b) True
  8. 8.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
  9. 9.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  10. 10.Which of these is caused by friction? (a) rubbing hands warms them (b) an apple falls down (c) rain falls to the ground (d) lifting a school bag
  11. 11.True or false: pressing a doorbell is a pull. (a) True (b) False
  12. 12.True or false: pushing a trolley is a pull. (a) False (b) True
  13. 13.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
  14. 14.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  15. 15.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) gravity (d) muscular force
  16. 16.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
  17. 17.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  18. 18.💪 Which force is at work: squeezing a lemon? (a) gravity (b) muscular force (c) magnetic force (d) friction
  19. 19.Which of these is caused by friction? (a) a magnet picks up pins (b) brakes stop a bicycle (c) pedalling a cycle (d) rain falls to the ground
  20. 20.💪 A cart is pulled to the right with 100 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  21. 21.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
  22. 22.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) magnetic force (d) muscular force
  23. 23.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  24. 24.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  25. 25.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.True or false: opening a drawer is a push. (a) True (b) False
  27. 27.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  28. 28.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  29. 29.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a river flows downhill (c) lifting a school bag (d) rubbing hands warms them
  30. 30.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  31. 31.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) pedalling a cycle (c) a fridge magnet sticks (d) lifting a school bag
  32. 32.True or false: pressing a doorbell is a push. (a) False (b) True
  33. 33.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  34. 34.Which of these is caused by gravity? (a) rain falls to the ground (b) a fridge magnet sticks (c) pedalling a cycle (d) lifting a school bag
  35. 35.True or false: pulling a cart is a pull. (a) False (b) True
  36. 36.True or false: drawing up a well bucket is a pull. (a) True (b) False
  37. 37.💪 Two children push a box to the right, one with 5 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) gravity (d) muscular force
  39. 39.Which of these is caused by friction? (a) shoes grip the floor (b) rain falls to the ground (c) lifting a school bag (d) pedalling a cycle
  40. 40.True or false: pulling up your socks is a pull. (a) True (b) False

Answer key

  1. a push
  2. to the right
  3. a compass needle turns
  4. False
  5. 5
  6. balanced
  7. False
  8. change its colour
  9. a push
  10. rubbing hands warms them
  11. False
  12. False
  13. magnetic force
  14. a pull
  15. muscular force
  16. push or a pull
  17. a pull
  18. muscular force
  19. brakes stop a bicycle
  20. to the left
  21. newton (N)
  22. gravity
  23. 20
  24. a push
  25. 2
  26. False
  27. a push
  28. 5
  29. lifting a school bag
  30. a pull
  31. a fridge magnet sticks
  32. True
  33. 80
  34. rain falls to the ground
  35. True
  36. True
  37. 85
  38. friction
  39. shoes grip the floor
  40. True

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