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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 935 · 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.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  2. 2.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) magnetic force (d) muscular force
  3. 3.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  4. 4.Which of these is caused by muscular force? (a) pedalling a cycle (b) a thrown ball comes down (c) shoes grip the floor (d) a fridge magnet sticks
  5. 5.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  6. 6.💪 Two children push a box to the right, one with 85 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  7. 7.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  8. 8.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  9. 9.💪 Two children push a box to the right, one with 75 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  11. 11.💪 Two children push a box to the right, one with 15 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  12. 12.Which of these is caused by gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) lifting a school bag (d) an apple falls down
  13. 13.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
  14. 14.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) muscular force (d) magnetic force
  15. 15.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
  16. 16.True or false: kicking a football is a push. (a) True (b) False
  17. 17.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 A cart is pulled to the right with 25 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  20. 20.True or false: opening a drawer is a push. (a) True (b) False
  21. 21.True or false: opening a drawer is a pull. (a) True (b) False
  22. 22.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  23. 23.True or false: pushing a swing is a push. (a) True (b) False
  24. 24.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  25. 25.True or false: plucking a mango is a push. (a) False (b) True
  26. 26.True or false: pressing a doorbell is a pull. (a) False (b) True
  27. 27.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) magnetic force (d) gravity
  28. 28.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  29. 29.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.True or false: pulling a cart is a push. (a) True (b) False
  31. 31.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  34. 34.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) start it moving (d) stop it moving
  35. 35.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  36. 36.Which of these is caused by muscular force? (a) a rolling ball slows (b) rain falls to the ground (c) a river flows downhill (d) lifting a school bag
  37. 37.True or false: pressing a doorbell is a push. (a) False (b) True
  38. 38.True or false: plucking a mango is a pull. (a) True (b) False
  39. 39.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  40. 40.True or false: pulling a cart is a pull. (a) True (b) False

Answer key

  1. friction
  2. gravity
  3. a pull
  4. pedalling a cycle
  5. no net force
  6. 135
  7. newton (N)
  8. friction
  9. 80
  10. 13
  11. 75
  12. an apple falls down
  13. push or a pull
  14. magnetic force
  15. friction
  16. True
  17. 440
  18. to the right
  19. balanced
  20. False
  21. True
  22. gravity
  23. True
  24. a pull
  25. False
  26. False
  27. friction
  28. to the left
  29. 31
  30. False
  31. 40
  32. 120
  33. to the right
  34. change its colour
  35. 25
  36. lifting a school bag
  37. True
  38. True
  39. a push
  40. True

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