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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 367 · 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) type of sound (c) unit of time (d) kind of colour
  2. 2.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
  3. 3.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
  4. 4.Which of these is caused by magnetic force? (a) rain falls to the ground (b) rubbing hands warms them (c) a river flows downhill (d) a magnet picks up pins
  5. 5.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
  6. 6.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
  7. 7.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
  9. 9.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) a thrown ball comes down (d) shoes grip the floor
  10. 10.True or false: closing a drawer is a push. (a) False (b) True
  11. 11.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
  12. 12.True or false: pulling up your socks is a pull. (a) False (b) True
  13. 13.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  14. 14.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) friction (d) magnetic force
  15. 15.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  16. 16.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  17. 17.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  18. 18.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  19. 19.Which of these is caused by muscular force? (a) an apple falls down (b) a compass needle turns (c) squeezing a lemon (d) brakes stop a bicycle
  20. 20.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  21. 21.💪 Two children push a box to the right, one with 10 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  22. 22.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) magnetic force (d) gravity
  23. 23.💪 A cart is pulled to the right with 90 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  24. 24.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
  25. 25.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  26. 26.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  28. 28.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  29. 29.Which of these is caused by magnetic force? (a) squeezing a lemon (b) rain falls to the ground (c) a fridge magnet sticks (d) a thrown ball comes down
  30. 30.True or false: closing a drawer is a pull. (a) False (b) True
  31. 31.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
  32. 32.True or false: kicking a football is a pull. (a) True (b) False
  33. 33.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  34. 34.💪 A cart is pulled to the right with 55 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  35. 35.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
  36. 36.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  37. 37.True or false: pushing a trolley is a push. (a) True (b) False
  38. 38.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  39. 39.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  40. 40.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull

Answer key

  1. push or a pull
  2. 5
  3. change its colour
  4. a magnet picks up pins
  5. muscular force
  6. balanced
  7. 350
  8. gravity
  9. a thrown ball comes down
  10. True
  11. friction
  12. True
  13. 65
  14. magnetic force
  15. a pull
  16. 15
  17. a push
  18. to the right
  19. squeezing a lemon
  20. to the right
  21. 35
  22. gravity
  23. to the left
  24. newton (N)
  25. a push
  26. 32
  27. to the left
  28. a push
  29. a fridge magnet sticks
  30. False
  31. friction
  32. False
  33. a pull
  34. to the left
  35. friction
  36. gravity
  37. True
  38. 40
  39. 25
  40. a pull

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