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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 677 · 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 force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
  2. 2.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
  3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
  4. 4.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  5. 5.💪 A cart is pulled to the right with 80 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  6. 6.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) a rolling ball slows (d) rain falls to the ground
  8. 8.Which of these is caused by friction? (a) an apple falls down (b) a river flows downhill (c) a magnet picks up pins (d) rubbing hands warms them
  9. 9.True or false: kicking a football is a push. (a) False (b) True
  10. 10.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  11. 11.True or false: pushing a trolley is a pull. (a) True (b) False
  12. 12.💪 Two children push a box to the right, one with 10 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  13. 13.💪 Two children push a box to the right, one with 50 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  14. 14.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a magnet picks up pins (c) lifting a school bag (d) a fridge magnet sticks
  15. 15.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  16. 16.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  17. 17.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  18. 18.💪 A cart is pulled to the right with 35 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  19. 19.Which of these is caused by gravity? (a) a river flows downhill (b) a magnet picks up pins (c) squeezing a lemon (d) a compass needle turns
  20. 20.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  21. 21.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) muscular force (d) magnetic force
  22. 22.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  23. 23.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
  24. 24.Which of these is caused by gravity? (a) lifting a school bag (b) rubbing hands warms them (c) an apple falls down (d) a magnet picks up pins
  25. 25.True or false: pushing a swing is a push. (a) True (b) False
  26. 26.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) friction (c) gravity (d) magnetic force
  27. 27.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  28. 28.True or false: a tug of war is a push. (a) True (b) False
  29. 29.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  30. 30.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  31. 31.True or false: pushing a trolley is a push. (a) False (b) True
  32. 32.💪 Two children push a box to the right, one with 35 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  33. 33.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  35. 35.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  36. 36.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  37. 37.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
  38. 38.Which of these is caused by friction? (a) pedalling a cycle (b) a magnet picks up pins (c) an apple falls down (d) a rolling ball slows
  39. 39.True or false: hitting a cricket ball is a pull. (a) True (b) False
  40. 40.True or false: drawing up a well bucket is a push. (a) False (b) True

Answer key

  1. push or a pull
  2. change its colour
  3. balanced
  4. a push
  5. no net force
  6. 5
  7. rain falls to the ground
  8. rubbing hands warms them
  9. True
  10. gravity
  11. False
  12. 45
  13. 145
  14. lifting a school bag
  15. a push
  16. a pull
  17. a push
  18. to the left
  19. a river flows downhill
  20. 55
  21. friction
  22. 400
  23. newton (N)
  24. an apple falls down
  25. True
  26. friction
  27. 10
  28. False
  29. gravity
  30. 40
  31. True
  32. 110
  33. 8
  34. 14
  35. a push
  36. a pull
  37. muscular force
  38. a rolling ball slows
  39. False
  40. False

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