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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 451 · 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.💪 Two children push a box to the right, one with 20 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) gravity (d) muscular force
  3. 3.True or false: opening a drawer is a pull. (a) False (b) True
  4. 4.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) muscular force (d) magnetic force
  5. 5.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  6. 6.Which of these is caused by muscular force? (a) pedalling a cycle (b) shoes grip the floor (c) brakes stop a bicycle (d) a compass needle turns
  7. 7.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  8. 8.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
  10. 10.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  11. 11.True or false: pulling a cart is a push. (a) True (b) False
  12. 12.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  13. 13.True or false: pressing a doorbell is a push. (a) True (b) False
  14. 14.💪 Two children push a box to the right, one with 90 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  15. 15.Which of these is caused by gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) a magnet picks up pins (d) rain falls to the ground
  16. 16.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
  17. 17.True or false: kicking a football is a push. (a) True (b) False
  18. 18.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
  19. 19.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) friction (d) gravity
  20. 20.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.True or false: drawing up a well bucket is a push. (a) True (b) False
  23. 23.Which of these is caused by gravity? (a) pedalling a cycle (b) shoes grip the floor (c) rubbing hands warms them (d) a thrown ball comes down
  24. 24.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force
  25. 25.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.True or false: kicking a football is a pull. (a) True (b) False
  27. 27.True or false: opening a drawer is a push. (a) False (b) True
  28. 28.Which of these is caused by magnetic force? (a) a rolling ball slows (b) pedalling a cycle (c) a river flows downhill (d) a compass needle turns
  29. 29.💪 Two children push a box to the right, one with 50 N and the other with 50 N. What is the net (total) force on the box, in newtons?
  30. 30.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A bag has a mass of 57 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 40 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  34. 34.True or false: plucking a mango is a push. (a) True (b) False
  35. 35.True or false: a tug of war is a pull. (a) True (b) False
  36. 36.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  37. 37.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  39. 39.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  40. 40.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. 35
  2. friction
  3. True
  4. magnetic force
  5. a push
  6. pedalling a cycle
  7. a push
  8. 14
  9. balanced
  10. a pull
  11. False
  12. a pull
  13. True
  14. 100
  15. rain falls to the ground
  16. push or a pull
  17. True
  18. change its colour
  19. magnetic force
  20. 20
  21. 56
  22. False
  23. a thrown ball comes down
  24. friction
  25. 10
  26. False
  27. False
  28. a compass needle turns
  29. 100
  30. 550
  31. 42
  32. 570
  33. to the right
  34. False
  35. True
  36. a push
  37. 47
  38. 45
  39. 20
  40. 35

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