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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 911 · 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.True or false: kicking a football is a pull. (a) False (b) True
  2. 2.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  3. 3.True or false: opening a drawer is a pull. (a) True (b) False
  4. 4.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a fridge magnet sticks (c) shoes grip the floor (d) a thrown ball comes down
  5. 5.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) rubbing hands warms them (c) pedalling a cycle (d) an apple falls down
  6. 6.💪 A cart is pulled to the right with 80 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  7. 7.💪 Two children push a box to the right, one with 55 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  8. 8.💪 Two children push a box to the right, one with 75 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  9. 9.True or false: plucking a mango is a pull. (a) False (b) True
  10. 10.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  11. 11.True or false: pushing a swing is a pull. (a) True (b) False
  12. 12.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  13. 13.True or false: closing a drawer is a push. (a) True (b) False
  14. 14.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  15. 15.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
  16. 16.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  17. 17.True or false: pulling up your socks is a pull. (a) True (b) False
  18. 18.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  19. 19.True or false: drawing up a well bucket is a pull. (a) False (b) True
  20. 20.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
  21. 21.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.Which of these is caused by muscular force? (a) lifting a school bag (b) rubbing hands warms them (c) shoes grip the floor (d) a magnet picks up pins
  23. 23.True or false: plucking a mango is a push. (a) True (b) False
  24. 24.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  26. 26.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  27. 27.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  28. 28.True or false: pressing a doorbell is a pull. (a) False (b) True
  29. 29.Which of these is caused by magnetic force? (a) a river flows downhill (b) lifting a school bag (c) a magnet picks up pins (d) rubbing hands warms them
  30. 30.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  31. 31.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  32. 32.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
  33. 33.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
  35. 35.💪 A cart is pulled to the right with 65 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  36. 36.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  37. 37.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
  38. 38.True or false: pressing a doorbell is a push. (a) True (b) False
  39. 39.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  40. 40.💪 Two children push a box to the right, one with 85 N and the other with 10 N. What is the net (total) force on the box, in newtons?

Answer key

  1. False
  2. 20
  3. True
  4. a fridge magnet sticks
  5. pedalling a cycle
  6. to the left
  7. 85
  8. 165
  9. True
  10. a pull
  11. False
  12. a push
  13. True
  14. a push
  15. balanced
  16. a push
  17. True
  18. a push
  19. True
  20. change its colour
  21. 57
  22. lifting a school bag
  23. False
  24. 32
  25. 210
  26. a pull
  27. a push
  28. False
  29. a magnet picks up pins
  30. 5
  31. to the right
  32. push or a pull
  33. 50
  34. newton (N)
  35. to the right
  36. a pull
  37. gravity
  38. True
  39. to the right
  40. 95

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