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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 705 · 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 equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
  2. 2.💪 Two children push a box to the right, one with 80 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
  4. 4.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
  5. 5.💪 Two children push a box to the right, one with 50 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  7. 7.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) muscular force (d) friction
  8. 8.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  9. 9.Which of these is caused by gravity? (a) squeezing a lemon (b) brakes stop a bicycle (c) an apple falls down (d) shoes grip the floor
  10. 10.💪 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?
  11. 11.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  12. 12.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  13. 13.💪 A cart is pulled to the right with 70 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  14. 14.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  15. 15.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
  16. 16.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  17. 17.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  18. 18.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.True or false: a tug of war is a push. (a) False (b) True
  20. 20.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  22. 22.💪 A cart is pulled to the right with 65 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  23. 23.💪 Two children push a box to the right, one with 35 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  24. 24.True or false: hitting a cricket ball is a push. (a) True (b) False
  25. 25.💪 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) no net force (b) to the left (c) to the right
  26. 26.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) muscular force (d) magnetic force
  27. 27.True or false: pushing a swing is a pull. (a) False (b) True
  28. 28.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
  31. 31.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.Which of these is caused by muscular force? (a) a river flows downhill (b) pedalling a cycle (c) a fridge magnet sticks (d) an apple falls down
  33. 33.Which of these is caused by friction? (a) shoes grip the floor (b) rain falls to the ground (c) a magnet picks up pins (d) lifting a school bag
  34. 34.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) a river flows downhill (c) a rolling ball slows (d) shoes grip the floor
  35. 35.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  36. 36.💪 Which force is at work: pedalling a cycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
  37. 37.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  38. 38.True or false: hitting a cricket ball is a pull. (a) False (b) True
  39. 39.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  40. 40.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push

Answer key

  1. balanced
  2. 95
  3. gravity
  4. push or a pull
  5. 95
  6. a pull
  7. gravity
  8. a push
  9. an apple falls down
  10. 80
  11. a pull
  12. a push
  13. to the left
  14. newton (N)
  15. change its colour
  16. 15
  17. to the right
  18. 19
  19. False
  20. 350
  21. a push
  22. to the left
  23. 60
  24. True
  25. to the right
  26. magnetic force
  27. False
  28. 34
  29. 420
  30. 10
  31. 16
  32. pedalling a cycle
  33. shoes grip the floor
  34. a magnet picks up pins
  35. a pull
  36. muscular force
  37. to the right
  38. False
  39. a pull
  40. a pull

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