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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 744 · 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 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
  3. 3.Which of these is caused by gravity? (a) squeezing a lemon (b) a thrown ball comes down (c) rubbing hands warms them (d) a fridge magnet sticks
  4. 4.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  5. 5.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
  6. 6.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  7. 7.True or false: plucking a mango is a pull. (a) False (b) True
  8. 8.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
  9. 9.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  10. 10.Which of these is caused by friction? (a) a magnet picks up pins (b) squeezing a lemon (c) lifting a school bag (d) brakes stop a bicycle
  11. 11.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  12. 12.True or false: closing a drawer is a push. (a) False (b) True
  13. 13.Which of these is caused by muscular force? (a) shoes grip the floor (b) rubbing hands warms them (c) pedalling a cycle (d) rain falls to the ground
  14. 14.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
  15. 15.Which of these is caused by gravity? (a) a rolling ball slows (b) shoes grip the floor (c) rain falls to the ground (d) a fridge magnet sticks
  16. 16.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  17. 17.True or false: pushing a trolley is a push. (a) False (b) True
  18. 18.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  19. 19.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) magnetic force (d) friction
  20. 20.💪 A cart is pulled to the right with 85 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  21. 21.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
  22. 22.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  23. 23.True or false: plucking a mango is a push. (a) True (b) False
  24. 24.True or false: pushing a trolley is a pull. (a) False (b) True
  25. 25.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 A cart is pulled to the right with 75 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
  27. 27.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  28. 28.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.True or false: drawing up a well bucket is a pull. (a) True (b) False
  30. 30.💪 Two children push a box to the right, one with 80 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  33. 33.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) gravity (c) muscular force (d) friction
  34. 34.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  35. 35.Which of these is caused by muscular force? (a) a thrown ball comes down (b) lifting a school bag (c) brakes stop a bicycle (d) a compass needle turns
  36. 36.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  37. 37.💪 Two children push a box to the right, one with 90 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  38. 38.Which of these is caused by gravity? (a) a river flows downhill (b) a rolling ball slows (c) a compass needle turns (d) brakes stop a bicycle
  39. 39.True or false: a tug of war is a pull. (a) False (b) True
  40. 40.True or false: drawing up a well bucket is a push. (a) True (b) False

Answer key

  1. 360
  2. newton (N)
  3. a thrown ball comes down
  4. 15
  5. push or a pull
  6. a pull
  7. True
  8. change its colour
  9. 380
  10. brakes stop a bicycle
  11. a pull
  12. True
  13. pedalling a cycle
  14. 5
  15. rain falls to the ground
  16. 40
  17. True
  18. a push
  19. gravity
  20. to the right
  21. magnetic force
  22. a push
  23. False
  24. False
  25. 560
  26. to the right
  27. a push
  28. 180
  29. True
  30. 90
  31. 140
  32. 1
  33. muscular force
  34. 35
  35. lifting a school bag
  36. a pull
  37. 125
  38. a river flows downhill
  39. True
  40. False

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