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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 794 · 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: rubbing hands warms them? (a) friction (b) gravity (c) magnetic force (d) muscular force
  2. 2.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) magnetic force (d) gravity
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  4. 4.Which of these is caused by gravity? (a) a rolling ball slows (b) a compass needle turns (c) lifting a school bag (d) an apple falls down
  5. 5.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  6. 6.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 Two children push a box to the right, one with 80 N and the other with 80 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
  9. 9.Which of these is caused by magnetic force? (a) lifting a school bag (b) pedalling a cycle (c) a magnet picks up pins (d) squeezing a lemon
  10. 10.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  11. 11.True or false: kicking a football is a push. (a) False (b) True
  12. 12.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
  14. 14.💪 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?
  15. 15.Which of these is caused by friction? (a) rubbing hands warms them (b) a compass needle turns (c) squeezing a lemon (d) an apple falls down
  16. 16.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  17. 17.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
  18. 18.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  19. 19.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  20. 20.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  21. 21.💪 Two children push a box to the right, one with 20 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) muscular force (d) friction
  23. 23.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a river flows downhill (c) a compass needle turns (d) shoes grip the floor
  25. 25.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
  26. 26.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.Which of these is caused by muscular force? (a) a river flows downhill (b) squeezing a lemon (c) shoes grip the floor (d) a rolling ball slows
  28. 28.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  29. 29.True or false: drawing up a well bucket is a push. (a) True (b) False
  30. 30.True or false: pulling a cart is a push. (a) True (b) False
  31. 31.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  32. 32.💪 Two children push a box to the right, one with 25 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  34. 34.True or false: closing a drawer is a pull. (a) True (b) False
  35. 35.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
  36. 36.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) muscular force (d) gravity
  37. 37.💪 A cart is pulled to the right with 30 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
  38. 38.Which of these is caused by gravity? (a) lifting a school bag (b) a river flows downhill (c) squeezing a lemon (d) a rolling ball slows
  39. 39.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  40. 40.True or false: drawing up a well bucket is a pull. (a) False (b) True

Answer key

  1. friction
  2. gravity
  3. balanced
  4. an apple falls down
  5. a pull
  6. 36
  7. 160
  8. 30
  9. a magnet picks up pins
  10. a push
  11. True
  12. 8
  13. friction
  14. 80
  15. rubbing hands warms them
  16. a push
  17. friction
  18. 25
  19. newton (N)
  20. a push
  21. 40
  22. muscular force
  23. 23
  24. a compass needle turns
  25. gravity
  26. 39
  27. squeezing a lemon
  28. a pull
  29. False
  30. False
  31. a pull
  32. 60
  33. to the right
  34. False
  35. change its colour
  36. magnetic force
  37. to the right
  38. a river flows downhill
  39. a push
  40. True

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