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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 10 · 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 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  3. 3.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  4. 4.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  5. 5.Which of these is caused by muscular force? (a) shoes grip the floor (b) lifting a school bag (c) a compass needle turns (d) rain falls to the ground
  6. 6.True or false: a tug of war is a pull. (a) True (b) False
  7. 7.Which of these is caused by gravity? (a) rubbing hands warms them (b) a magnet picks up pins (c) a river flows downhill (d) shoes grip the floor
  8. 8.💪 Which force is at work: lifting a school bag? (a) muscular force (b) friction (c) gravity (d) magnetic force
  9. 9.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
  11. 11.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
  13. 13.Which of these is caused by gravity? (a) a rolling ball slows (b) an apple falls down (c) pedalling a cycle (d) brakes stop a bicycle
  14. 14.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  15. 15.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  16. 16.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 Two children push a box to the right, one with 55 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  18. 18.💪 A cart is pulled to the right with 100 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
  19. 19.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  20. 20.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
  21. 21.💪 Two children push a box to the right, one with 70 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  23. 23.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) friction (d) magnetic force
  24. 24.💪 Two children push a box to the right, one with 45 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  25. 25.💪 Two children push a box to the right, one with 80 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
  27. 27.True or false: kicking a football is a push. (a) True (b) False
  28. 28.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) friction (c) muscular force (d) magnetic force
  29. 29.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  30. 30.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
  32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  33. 33.True or false: pressing a doorbell is a pull. (a) True (b) False
  34. 34.True or false: pushing a trolley is a pull. (a) True (b) False
  35. 35.💪 A force is a … (a) unit of time (b) type of sound (c) kind of colour (d) push or a pull
  36. 36.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) brakes stop a bicycle (c) a rolling ball slows (d) a river flows downhill
  37. 37.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a fridge magnet sticks (c) an apple falls down (d) lifting a school bag
  38. 38.💪 Is pulling up your socks 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) no net force (b) to the right (c) to the left
  40. 40.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)

Answer key

  1. 470
  2. to the right
  3. 410
  4. gravity
  5. lifting a school bag
  6. True
  7. a river flows downhill
  8. muscular force
  9. 35
  10. friction
  11. 2
  12. gravity
  13. an apple falls down
  14. 20
  15. a push
  16. 4
  17. 80
  18. to the right
  19. 180
  20. change its colour
  21. 80
  22. a push
  23. friction
  24. 135
  25. 140
  26. friction
  27. True
  28. magnetic force
  29. 30
  30. 360
  31. gravity
  32. a pull
  33. False
  34. False
  35. push or a pull
  36. a magnet picks up pins
  37. a fridge magnet sticks
  38. a pull
  39. to the right
  40. newton (N)

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