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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 378 · 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 cart is pulled to the right with 70 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  2. 2.True or false: drawing up a well bucket is a pull. (a) False (b) True
  3. 3.Which of these is caused by gravity? (a) pedalling a cycle (b) an apple falls down (c) brakes stop a bicycle (d) rubbing hands warms them
  4. 4.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
  5. 5.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity
  6. 6.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  7. 7.True or false: pulling a cart is a push. (a) False (b) True
  8. 8.Which of these is caused by friction? (a) rain falls to the ground (b) shoes grip the floor (c) a fridge magnet sticks (d) a thrown ball comes down
  9. 9.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  10. 10.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  11. 11.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) lifting a school bag (d) a rolling ball slows
  13. 13.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  14. 14.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) muscular force (d) magnetic force
  15. 15.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.💪 A cart is pulled to the right with 60 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  17. 17.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  18. 18.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  19. 19.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
  20. 20.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  21. 21.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  22. 22.True or false: pulling up your socks is a pull. (a) False (b) True
  23. 23.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  24. 24.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  26. 26.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  27. 27.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  29. 29.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  30. 30.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  31. 31.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) stop it moving (d) start it moving
  32. 32.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  33. 33.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  34. 34.💪 Which force is at work: a rolling ball slows? (a) gravity (b) magnetic force (c) muscular force (d) friction
  35. 35.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  36. 36.Which of these is caused by gravity? (a) lifting a school bag (b) brakes stop a bicycle (c) a rolling ball slows (d) a river flows downhill
  37. 37.💪 A cart is pulled to the right with 65 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  38. 38.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) muscular force (d) gravity
  39. 39.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) friction (d) muscular force
  40. 40.💪 A cart is pulled to the right with 95 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left

Answer key

  1. no net force
  2. True
  3. an apple falls down
  4. gravity
  5. gravity
  6. 5
  7. False
  8. shoes grip the floor
  9. 15
  10. a push
  11. 43
  12. a fridge magnet sticks
  13. a push
  14. magnetic force
  15. 25
  16. to the right
  17. gravity
  18. 41
  19. newton (N)
  20. 560
  21. a pull
  22. True
  23. 56
  24. 4
  25. magnetic force
  26. 75
  27. 32
  28. to the right
  29. balanced
  30. 65
  31. change its colour
  32. 40
  33. a pull
  34. friction
  35. a push
  36. a river flows downhill
  37. to the left
  38. friction
  39. friction
  40. to the right

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