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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 953 · 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.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  3. 3.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
  4. 4.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  5. 5.Which of these is caused by gravity? (a) an apple falls down (b) brakes stop a bicycle (c) squeezing a lemon (d) a fridge magnet sticks
  6. 6.Which of these is caused by muscular force? (a) a compass needle turns (b) an apple falls down (c) shoes grip the floor (d) squeezing a lemon
  7. 7.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  8. 8.True or false: a tug of war is a push. (a) False (b) True
  9. 9.💪 Two children push a box to the right, one with 80 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  11. 11.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
  12. 12.Which of these is caused by magnetic force? (a) a river flows downhill (b) a thrown ball comes down (c) a magnet picks up pins (d) brakes stop a bicycle
  13. 13.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
  14. 14.💪 Two children push a box to the right, one with 10 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
  16. 16.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  17. 17.True or false: opening a drawer is a push. (a) True (b) False
  18. 18.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  19. 19.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  21. 21.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.True or false: pressing a doorbell is a pull. (a) True (b) False
  23. 23.Which of these is caused by muscular force? (a) an apple falls down (b) a fridge magnet sticks (c) rain falls to the ground (d) pedalling a cycle
  24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
  25. 25.True or false: pressing a doorbell is a push. (a) True (b) False
  26. 26.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  27. 27.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) friction (c) gravity (d) magnetic force
  28. 28.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
  29. 29.True or false: pushing a trolley is a push. (a) True (b) False
  30. 30.💪 Two children push a box to the right, one with 55 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  32. 32.True or false: pulling up your socks is a pull. (a) True (b) False
  33. 33.True or false: opening a drawer is a pull. (a) True (b) False
  34. 34.💪 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 right (b) to the left (c) no net force
  35. 35.Which of these is caused by friction? (a) brakes stop a bicycle (b) squeezing a lemon (c) lifting a school bag (d) a fridge magnet sticks
  36. 36.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  37. 37.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  39. 39.💪 A cart is pulled to the right with 80 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
  40. 40.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?

Answer key

  1. 170
  2. a pull
  3. newton (N)
  4. gravity
  5. an apple falls down
  6. squeezing a lemon
  7. 35
  8. False
  9. 95
  10. a push
  11. change its colour
  12. a magnet picks up pins
  13. push or a pull
  14. 75
  15. magnetic force
  16. 100
  17. False
  18. a push
  19. 41
  20. to the left
  21. 2
  22. False
  23. pedalling a cycle
  24. balanced
  25. True
  26. magnetic force
  27. friction
  28. muscular force
  29. True
  30. 120
  31. a pull
  32. True
  33. True
  34. to the right
  35. brakes stop a bicycle
  36. a push
  37. gravity
  38. a push
  39. to the right
  40. 5

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