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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 443 · 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 25 N and to the left with 35 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: hitting a cricket ball is a pull. (a) False (b) True
  3. 3.True or false: drawing up a well bucket is a push. (a) False (b) True
  4. 4.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  5. 5.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
  6. 6.Which of these is caused by gravity? (a) a fridge magnet sticks (b) squeezing a lemon (c) rain falls to the ground (d) lifting a school bag
  7. 7.True or false: pushing a swing is a push. (a) False (b) True
  8. 8.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  9. 9.💪 Two children push a box to the right, one with 20 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
  11. 11.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) magnetic force (d) gravity
  12. 12.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  13. 13.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) friction (d) gravity
  14. 14.Which of these is caused by friction? (a) a thrown ball comes down (b) rain falls to the ground (c) pedalling a cycle (d) rubbing hands warms them
  15. 15.💪 Two children push a box to the right, one with 25 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  16. 16.Which of these is caused by muscular force? (a) a rolling ball slows (b) a magnet picks up pins (c) a river flows downhill (d) lifting a school bag
  17. 17.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  18. 18.True or false: kicking a football is a pull. (a) False (b) True
  19. 19.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
  20. 20.True or false: pulling up your socks is a push. (a) True (b) False
  21. 21.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  22. 22.Which of these is caused by muscular force? (a) pedalling a cycle (b) a compass needle turns (c) a magnet picks up pins (d) a thrown ball comes down
  23. 23.💪 Two children push a box to the right, one with 45 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
  25. 25.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) muscular force (d) gravity
  26. 26.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  27. 27.True or false: pressing a doorbell is a push. (a) False (b) True
  28. 28.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  30. 30.Which of these is caused by gravity? (a) a river flows downhill (b) squeezing a lemon (c) a rolling ball slows (d) a compass needle turns
  31. 31.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  32. 32.True or false: pulling a cart is a push. (a) True (b) False
  33. 33.True or false: pushing a trolley is a push. (a) True (b) False
  34. 34.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  35. 35.Which of these is caused by friction? (a) rain falls to the ground (b) a rolling ball slows (c) lifting a school bag (d) an apple falls down
  36. 36.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
  37. 37.💪 Two children push a box to the right, one with 60 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  38. 38.💪 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
  39. 39.💪 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?
  40. 40.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a fridge magnet sticks (c) a river flows downhill (d) a thrown ball comes down

Answer key

  1. to the left
  2. False
  3. False
  4. 40
  5. balanced
  6. rain falls to the ground
  7. True
  8. newton (N)
  9. 55
  10. magnetic force
  11. gravity
  12. a pull
  13. muscular force
  14. rubbing hands warms them
  15. 60
  16. lifting a school bag
  17. 39
  18. False
  19. gravity
  20. False
  21. 370
  22. pedalling a cycle
  23. 130
  24. friction
  25. magnetic force
  26. a pull
  27. True
  28. 29
  29. a push
  30. a river flows downhill
  31. a pull
  32. False
  33. True
  34. a push
  35. a rolling ball slows
  36. change its colour
  37. 155
  38. to the left
  39. 15
  40. a fridge magnet sticks

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