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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 472 · 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 of these is caused by gravity? (a) squeezing a lemon (b) brakes stop a bicycle (c) a fridge magnet sticks (d) an apple falls down
  2. 2.Which of these is caused by friction? (a) a thrown ball comes down (b) an apple falls down (c) pedalling a cycle (d) shoes grip the floor
  3. 3.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) magnetism (d) friction
  4. 4.True or false: drawing up a well bucket is a push. (a) True (b) False
  5. 5.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  6. 6.True or false: pressing a doorbell is a push. (a) False (b) True
  7. 7.Which of these is caused by gravity? (a) a rolling ball slows (b) a river flows downhill (c) lifting a school bag (d) shoes grip the floor
  8. 8.True or false: plucking a mango is a pull. (a) True (b) False
  9. 9.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
  11. 11.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  12. 12.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) muscular force (d) gravity
  13. 13.Which of these is caused by magnetic force? (a) lifting a school bag (b) a compass needle turns (c) shoes grip the floor (d) squeezing a lemon
  14. 14.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
  15. 15.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
  16. 16.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  17. 17.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) magnetic force (d) gravity
  18. 18.True or false: a tug of war is a push. (a) True (b) False
  19. 19.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  20. 20.Which of these is caused by friction? (a) a compass needle turns (b) an apple falls down (c) rubbing hands warms them (d) squeezing a lemon
  21. 21.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
  22. 22.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  23. 23.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  24. 24.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
  25. 25.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
  26. 26.True or false: kicking a football is a push. (a) False (b) True
  27. 27.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  29. 29.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  30. 30.True or false: closing a drawer is a pull. (a) True (b) False
  31. 31.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  32. 32.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a river flows downhill (c) a rolling ball slows (d) a fridge magnet sticks
  33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  34. 34.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  35. 35.True or false: hitting a cricket ball is a pull. (a) False (b) True
  36. 36.Which of these is caused by muscular force? (a) a compass needle turns (b) rain falls to the ground (c) a magnet picks up pins (d) lifting a school bag
  37. 37.True or false: plucking a mango is a push. (a) True (b) False
  38. 38.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
  39. 39.True or false: pulling a cart is a push. (a) False (b) True
  40. 40.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull

Answer key

  1. an apple falls down
  2. shoes grip the floor
  3. gravity
  4. False
  5. a push
  6. True
  7. a river flows downhill
  8. True
  9. 7
  10. balanced
  11. a push
  12. gravity
  13. a compass needle turns
  14. gravity
  15. gravity
  16. 5
  17. friction
  18. False
  19. 190
  20. rubbing hands warms them
  21. 40
  22. a pull
  23. a pull
  24. gravity
  25. friction
  26. True
  27. 11
  28. push or a pull
  29. change its colour
  30. False
  31. to the left
  32. a fridge magnet sticks
  33. a pull
  34. a pull
  35. False
  36. lifting a school bag
  37. False
  38. newton (N)
  39. False
  40. a push

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